Apple Watch Series 9 Review | 126 Data compared

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  • Avg. price: ~£310
  • Screen size: ?
  • Battery life: 0.88 day/s
  • Display type: OLED

Apple Watch Series 9 review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

8.3

Overall score

What it is: An overall evaluation of the smartwatch's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best Smartwatches on the market.

Score components:

90.0%

8.2

Technical Score

10.0%

9.4

User score

Excellent
8.2

Technical Score

What it is: An assessment of the smartwatch's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

When it matters: When you want to compare Smartwatches based on technical performance and available features.

Score components:

24.0%

7.6

Health

21.0%

9.9

Fitness

16.0%

4.3

Battery

14.0%

10

Smart features

12.0%

9.0

Connectivity

9.0%

9.0

Display & Design

4.0%

7.7

Hardware

Excellent
9.4

User score

What it is: A rating that combines user reviews and the total number of reviews received by the smartwatch

When it matters: When you want to know how a smartwatch handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

9.1

User reviews

30.0%

10

Popularity

User score:
amazon
4.6
(799)
amazon
4.6
(275)
amazon
4.6
(98)
amazon
4.5
(97)
amazon
4.4
(94)
amazon
4.5
(88)
amazon
4.6
(31)
amazon
4.7
(22)
amazon
4.0
(16)
amazon
5.0
(7)
amazon
3.8
(5)
amazon
1.0
(2)
amazon
3.5
(2)

(Reviews last updated: Apr 2026)

Exceptional
    • apple-watch-series-9
    apple-watch-series-9

    Best prices

    Technical Specifications of smartwatch Apple Watch Series 9

    Technical Score

    What it is: An assessment of the smartwatch's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

    When it matters: When you want to compare Smartwatches based on technical performance and available features.

    Score components:

    24.0%

    7.6

    Health

    21.0%

    9.9

    Fitness

    16.0%

    4.3

    Battery

    14.0%

    10

    Smart features

    12.0%

    9.0

    Connectivity

    9.0%

    9.0

    Display & Design

    4.0%

    7.7

    Hardware

    8.2
    Apple Watch Series 9 has a technical score of 8.17 points, which is higher than 90.8% of smartwatches.
    User score

    What it is: A rating that combines user reviews and the total number of reviews received by the smartwatch

    When it matters: When you want to know how a smartwatch handles daily tasks and how reliable it remains over time according to user feedback.

    Score components:

    70.0%

    9.1

    User reviews

    30.0%

    10

    Popularity

    User score:
    amazon
    4.6
    (799)
    amazon
    4.6
    (275)
    amazon
    4.6
    (98)
    amazon
    4.5
    (97)
    amazon
    4.4
    (94)
    amazon
    4.5
    (88)
    amazon
    4.6
    (31)
    amazon
    4.7
    (22)
    amazon
    4.0
    (16)
    amazon
    5.0
    (7)
    amazon
    3.8
    (5)
    amazon
    1.0
    (2)
    amazon
    3.5
    (2)

    (Reviews last updated: Apr 2026)

    9.4
    Apple Watch Series 9 has a user score of 9.39 points, which is higher than 97.9% of smartwatches.
    Popularity
    What it is: An indicator based on the number of reviews received by the smartwatch.
    When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.
    10
    Apple Watch Series 9 has a popularity of 10 points, which is higher than 74.7% of smartphones.
    Ratio quality/price

    What it is: An indicator that combines the smartwatch's overall rating with its cost.

    When it matters: When you are looking for a smartwatch with a good balance between quality and price.

    Score components:

    60.0%

    8.3

    Overall score

    40.0%

    8.9

    Price

    8.5
    Apple Watch Series 9 has a quality-to-price ratio of 8.5 points, which is higher than 90.9% of smartphones.
    Brand name
    What it is: The company that designs, sells, and supports the watch.
    When it matters: When brand ecosystem, style, or support matters to you.

    Importance: MEDIUM

    Apple
    Heart rate monitor
    What it is: A built-in sensor that measures your pulse directly from the wrist.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    yes
    Apple Watch Series 9 includes a heart rate monitor. 90.4% of smartwatches include a heart rate monitor.
    Blood oxygen monitoring
    What it is: A wrist-based feature that estimates blood oxygen saturation over time.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    yes
    Apple Watch Series 9 supports blood oxygen monitoring. 64.4% of smartwatches support blood oxygen monitoring.
    ECG
    What it is: The ability to record a single-lead electrocardiogram from the wrist.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    yes
    Apple Watch Series 9 supports ECG. 15.1% of smartwatches support ECG.
    Irregular heart rate warnings
    What it is: Notifications that flag heart-rate patterns which appear unusually irregular.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 supports irregular heart rate warnings. 43.7% of smartwatches support irregular heart rate warnings.
    Show more
    Accelerometer
    What it is: A motion sensor that measures acceleration, steps, gestures, and general movement.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 includes an accelerometer. 99.1% of smartwatches include an accelerometer.
    Barometer
    What it is: A pressure sensor used for altitude changes, elevation estimates, and weather-related context.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 includes a barometer. 45.6% of smartwatches include a barometer.
    Gyroscope
    What it is: A motion sensor that measures rotation and helps interpret wrist movement more accurately.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 includes a gyroscope. 64.6% of smartwatches include a gyroscope.
    Cadence sensor
    What it is: A sensor input used to measure step or pedal rhythm during training.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 includes a cadence sensor. 20.1% of smartwatches include a cadence sensor.
    Cadence may require external sensor/app pairing on some models.
    Distance tracking
    What it is: The ability to measure how far you move during walks, runs, rides, or other activities.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 supports distance tracking. 95.7% of smartwatches support distance tracking.
    Show more
    Battery life
    What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=7 days

    0.88 day/s
    Apple Watch Series 9 offers a battery life of 0.88 day/s which is shorter than that of 96.1% of smartwatches and equal to that of 1.7% of smartwatches.
    Converted from roughly 18-24 hours of battery life.
    Battery life in training mode
    What it is: The expected endurance while workout tracking and related training functions are active.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=36.8 h

    7.5 h
    Apple Watch Series 9 lasts 7.5 h in training mode which is shorter than 77.9% of smartwatches of smartwatches.
    Battery life with GPS on
    What it is: The expected runtime when satellite tracking stays active throughout use.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=35 h

    7 h
    Apple Watch Series 9 lasts 7 h with GPS on which is shorter than 81.1% of smartwatches and equal to that of 4.7% of smartwatches.
    Battery power
    What it is: The battery capacity, usually measured in milliampere-hours (mAh).
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=397 mAh

    282 mAh
    Apple Watch Series 9 has a battery capacity of 282 mAh which is smaller than the batteries in 59.1% of smartwatches and equal to those in 0.3% of smartwatches.
    Battery capacity varies by case size/model variant.
    Charge time
    What it is: The time needed to recharge the battery from empty to full or to a stated percentage.
    When it matters: When you want to top up the battery quickly.

    Importance: HIGH

    Good value: <=102 min

    75 min
    Apple Watch Series 9 charges in 75 min which is faster than 75% of smartwatches and equal to the charge time of 3.2% of smartwatches.
    Show more
    Operating system
    What it is: The software platform that runs the watch interface, apps, and core functions.
    When it matters: When you care about apps, features, and long-term support.

    Importance: HIGH

    watchOS
    Apple Watch Series 9 runs watchOS which is more advanced than the operating system in 95.7% of smartwatches and the same as that in 4.3% of smartwatches.
    Software update frequency
    What it is: Shows how actively the watch is still updated: regular means ongoing updates throughout active support, occasional means updates every few months or only from time to time, and ended means active software support has mostly stopped.
    When it matters: When you care how actively the watch is still supported with fixes, patches, and new features.

    Importance: MEDIUM

    regular
    Apple Watch Series 9 has regular software update support which is more active than that of 94% of smartwatches and equal to that of 6% of smartwatches.
    Updates are released regularly throughout the year.
    Third-party app support
    What it is: Support for installing or using apps from developers beyond the watch maker.
    When it matters: When you care about apps, features, and long-term support.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 supports third-party apps. 47.6% of smartwatches support third-party apps.
    Notifications
    What it is: Mirroring of calls, messages, apps, or other alerts on the watch.
    When it matters: When you want to check alerts without taking out your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 supports notifications. 99.9% of smartwatches support notifications.
    Voice assistant support
    What it is: Support for a voice assistant that can answer queries or trigger actions from the wrist.
    When it matters: When you want to control the watch or reply without typing.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 supports voice assistants. 68% of smartwatches support voice assistants.
    Show more
    Cellular module
    What it is: Built-in mobile connectivity that can keep the watch online away from the phone.
    When it matters: When you want calls, messages, or data without your phone nearby.

    Importance: HIGH

    yes
    Apple Watch Series 9 includes a cellular module. 17.2% of smartwatches include a cellular module.
    Cellular support may depend on LTE/GPS+Cellular variant selection.
    SIM cards
    What it is: The number or type of SIM options the watch accepts for cellular service.
    When it matters: When you want calls, messages, or data without your phone nearby.

    Importance: LOW

    Good value: eSIM support

    1
    GPS
    What it is: Built-in satellite positioning that lets the watch record location during outdoor activity.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: HIGH

    yes
    Apple Watch Series 9 supports GPS. 56.1% of smartwatches support GPS.
    Galileo support
    What it is: Support for Galileo satellites alongside other positioning systems.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 supports Galileo navigation. 38.7% of smartwatches support Galileo navigation.
    Compass
    What it is: A directional sensor that helps the watch determine heading and orientation.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 9 includes a compass. 49.3% of smartwatches include a compass.
    Show more
    Screen size
    What it is: The diagonal measurement of the visible display area, usually expressed in inches.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: HIGH

    Good value: >=1.5 inch

    ?
    Display type
    What it is: The screen technology used by the watch, such as AMOLED, OLED, or memory-in-pixel LCD.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: HIGH

    OLED
    Apple Watch Series 9 uses a OLED display type which is less advanced than that of 51.4% of smartwatches and the same as that of 9.7% of smartwatches.
    Retina branding. LTPO panel wording.
    Resolution
    What it is: The total number of pixels available on the watch display.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: MEDIUM

    Good value: >=416 x 416

    ?
    Pixel density
    What it is: The number of pixels packed into each inch of the display.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: MEDIUM

    Good value: >=326 ppi

    326 ppi
    Apple Watch Series 9 has a pixel density of 326 ppi which is higher than that of 46.4% of smartwatches and equal to that of 8.3% of smartwatches.
    Display brightness
    What it is: The peak brightness the display can reach, usually expressed in nits.
    When it matters: When you want the screen to stay readable outdoors and in strong sunlight.

    Importance: HIGH

    Good value: >=1000 nits

    2000 nits
    Apple Watch Series 9 reaches 2000 nits nits of display brightness, which is higher than that of 88.9% of smartwatches and equal to that of 5.8% of smartwatches.
    Show more
    CPU speed
    What it is: The clock speed of the watch processor, usually expressed in GHz or MHz.
    When it matters: When you want apps and menus to feel smooth.

    Importance: MEDIUM

    Good value: Modern standard

    1 GHz
    Apple Watch Series 9 uses a CPU configuration of 1 GHz which is faster than that in 29.2% of smartwatches and equal to that in 31.2% of smartwatches.
    Processor model
    What it is: The processor model is the chipset or SoC that powers the watch's performance, connectivity, and efficiency.
    When it matters: When you care about app responsiveness, platform generation, and long-term feature support.

    Importance: LOW

    Good value: modern smartwatch chipset

    Apple S9
    Apple Watch Series 9 uses the Apple S9 processor model.
    RAM
    What it is: The amount of working memory available for apps, watch faces, and background tasks.
    When it matters: When you want apps and menus to feel smooth.

    Importance: MEDIUM

    Good value: >=1 GB

    1 GB
    Apple Watch Series 9 has 1 GB of RAM which is larger than the RAM in 32.3% of smartwatches and equal to that of 34.6% of smartwatches.
    Internal storage
    What it is: Built-in storage for apps, music, watch faces, and other local data.
    When it matters: When you want more room for apps, music, or offline data.

    Importance: MEDIUM

    Good value: >=8 GB

    64 GB
    Apple Watch Series 9 uses 64 GB for internal storage which is larger than that of 98.3% of smartwatches and equal to that of 1.7% of smartwatches.
    External memory slot
    What it is: A slot for expandable storage such as a memory card, if the watch provides one.
    When it matters: When you want more room for apps, music, or offline data.

    Importance: LOW

    no
    Apple Watch Series 9 does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Apple Watch Series 9 vs the average smartwatch

    • Has cellular module
      Apple Watch Series 9 includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
      Cellular support may depend on LTE/GPS+Cellular variant selection.
      What it is: Built-in mobile connectivity that can keep the watch online away from the phone.
      When it matters: When you want calls, messages, or data without your phone nearby.

      Importance: HIGH

      Apple Watch Series 9 includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
    • Has ECG
      Apple Watch Series 9 supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
      What it is: The ability to record a single-lead electrocardiogram from the wrist.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Apple Watch Series 9 supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
    • 1,400 nits higher display brightness
      Apple Watch Series 9 has higher display brightness than the average smartwatch (2,000 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.
      What it is: The peak brightness the display can reach, usually expressed in nits.
      When it matters: When you want the screen to stay readable outdoors and in strong sunlight.

      Importance: HIGH

      Good value: >=1000 nits

      Apple Watch Series 9 has higher display brightness than the average smartwatch (2,000 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.2,000 nits vs 600 nits
    • More advanced operating system
      Apple Watch Series 9 runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
      What it is: The software platform that runs the watch interface, apps, and core functions.
      When it matters: When you care about apps, features, and long-term support.

      Importance: HIGH

      Apple Watch Series 9 runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).watchOS vs Proprietary OS
    • 60 GB more storage
      Apple Watch Series 9 offers more internal storage than the average smartwatch (64 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
      What it is: Built-in storage for apps, music, watch faces, and other local data.
      When it matters: When you want more room for apps, music, or offline data.

      Importance: MEDIUM

      Good value: >=8 GB

      Apple Watch Series 9 offers more internal storage than the average smartwatch (64 GB vs 4 GB). The average smartwatch provides 4 GB of storage.64 GB vs 4 GB
    • Includes fall detection
      Apple Watch Series 9 supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
      What it is: Automatic detection of hard falls that can trigger checks or emergency actions.
      When it matters: When you want extra help in an emergency.

      Importance: HIGH

      Apple Watch Series 9 supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • Includes wireless charging
      Apple Watch Series 9 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
      What it is: Support for recharging the watch through a charging pad, puck, or other cable-free method.
      When it matters: When you want to top up the battery quickly.

      Importance: MEDIUM

      Apple Watch Series 9 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • Has NFC
      Apple Watch Series 9 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
      What it is: Near-field communication hardware used for payments, pairing, or quick tap-based actions.
      When it matters: When you want to pay quickly or pair devices with a tap.

      Importance: HIGH

      Apple Watch Series 9 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Has ECG
      Apple Watch Series 9 supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
    • Has temperature sensor
      Apple Watch Series 9 includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
    • Has HRV tracking
      Apple Watch Series 9 supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Supports VO2 max
      Apple Watch Series 9 measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Has irregular heart alerts
      Apple Watch Series 9 supports irregular heart rate warnings, the average smartwatch does not. 43.7% of smartwatches support irregular heart rate warnings.
    • Has weight tracking
      Apple Watch Series 9 supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Has multi-sport mode
      Apple Watch Series 9 includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
    • Has barometer
      Apple Watch Series 9 includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Has cadence sensor
      Apple Watch Series 9 includes a cadence sensor, the average smartwatch does not. 20.1% of smartwatches include a cadence sensor.
    • Has external HR monitor
      Apple Watch Series 9 supports external heart rate monitor compatibility, the average smartwatch does not. 41.3% of smartwatches support external heart rate monitor compatibility.
    • Includes wireless charging
      Apple Watch Series 9 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 45 min shorter charge time
      Apple Watch Series 9 charges faster than the average smartwatch (75 min vs 120 min). The average smartwatch charges in 120 min.
    • Has cellular module
      Apple Watch Series 9 includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
    • Has NFC
      Apple Watch Series 9 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Includes maps
      Apple Watch Series 9 supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
    • Has compass
      Apple Watch Series 9 includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Supports Wi-Fi
      Apple Watch Series 9 supports Wi-Fi, the average smartwatch does not. 43.4% of smartwatches support Wi-Fi.
    • Supports Galileo
      Apple Watch Series 9 supports Galileo navigation, the average smartwatch does not. 38.7% of smartwatches support Galileo navigation.
    • Has UWB chip
      Apple Watch Series 9 includes a UWB chip, while the average smartwatch does not. 2.6% of smartwatches include UWB.
    • Newer Bluetooth version
      Apple Watch Series 9 supports a newer Bluetooth version than the average smartwatch (5.3 vs 5.0). The average smartwatch uses 5.0.
    • 1,400 nits higher display brightness
      Apple Watch Series 9 has higher display brightness than the average smartwatch (2,000 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.
    • Has rugged design
      Apple Watch Series 9 has a rugged design, the average smartwatch does not. 34.5% of smartwatches have a rugged design.
    • 13.1 g lighter weight
      Apple Watch Series 9 is lighter than the average smartwatch (31.9 g vs 45 g). The average smartwatch weighs 45 g.
    • Better case material
      Apple Watch Series 9 uses aluminum, stainless steel for the case material, while the average smartwatch uses polycarbonate.
    • 0.9 mm thinner watch body
      Apple Watch Series 9 is thinner than the average smartwatch (10.7 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
    • 7 mm narrower watch width
      Apple Watch Series 9 is narrower than the average smartwatch (35 mm vs 42.0 mm). The average smartwatch width is 42.0 mm.
    • More advanced operating system
      Apple Watch Series 9 runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
    • Includes fall detection
      Apple Watch Series 9 supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • More frequent updates
      Apple Watch Series 9 receives regular software updates, while the average smartwatch receives ended updates.
    • Includes crash detection
      Apple Watch Series 9 supports crash detection, the average smartwatch does not. 11.5% of smartwatches support crash detection.
    • Supports Emergency SOS
      Apple Watch Series 9 includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Supports third-party apps
      Apple Watch Series 9 supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • 60 GB more storage
      Apple Watch Series 9 offers more internal storage than the average smartwatch (64 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
    • More advanced processor model
      Apple Watch Series 9 uses the Apple S9 processor model, while the average smartwatch uses Snapdragon 400.
    • 2 year/s newer release date
      Apple Watch Series 9 has a newer release date than the average smartwatch (2023 vs 2021). The average smartwatch was released in 2021.
    • No stress monitoring
      Apple Watch Series 9 does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Some stress features may depend on third-party apps.
    • 5,534 m lower max altitude
      Apple Watch Series 9 supports a lower maximum altitude than the average smartwatch (3,000 m vs 8,534 m). The average smartwatch reaches 8,534 m.
    • 6.12 day/s shorter battery life
      Apple Watch Series 9 offers 0.9 day/s of battery life, while the average smartwatch offers 7 day/s.
      Converted from roughly 18-24 hours of battery life.
    • 13 h shorter GPS battery life
      Apple Watch Series 9 lasts less with GPS on than the average smartwatch (7 h vs 20 h). The average smartwatch lasts 20 h.
    • 12.5 h shorter training battery life
      Apple Watch Series 9 lasts less in training mode than the average smartwatch (7.5 h vs 20 h). The average smartwatch lasts 20 h.
    • 18 mAh smaller battery capacity
      Apple Watch Series 9 has a smaller battery capacity than the average smartwatch (282 mAh vs 300 mAh). The average smartwatch battery is 300 mAh.
      Battery capacity varies by case size/model variant.
    • Not compatible with Android
      Apple Watch Series 9 is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • Lower IP rating
      Apple Watch Series 9 has a lower IP rating than the average smartwatch (IP6X vs IP68).
      Also reported with 50M water-resistance rating.
    • Basic display type
      Apple Watch Series 9 uses OLED display technology, while the average smartwatch features AMOLED.
      Retina branding. LTPO panel wording.
    • No smart alarm
      Apple Watch Series 9 does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
    • Lower IP rating
      Apple Watch Series 9 has a lower IP rating than the average smartwatch (IP6X vs IP68).
      Also reported with 50M water-resistance rating.
      What it is: A standardized ingress-protection code showing how well the watch resists dust and water.
      When it matters: When you wear the watch in rain, sweat, or water.

      Importance: HIGH

      Good value: IP68 or better

      Apple Watch Series 9 has a lower IP rating than the average smartwatch (IP6X vs IP68).IP6X vs IP68
    • No stress monitoring
      Apple Watch Series 9 does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Some stress features may depend on third-party apps.
      What it is: Stress estimates derived from heart rate, HRV, or similar body signals.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Apple Watch Series 9 does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
    • 6.12 day/s shorter battery life
      Apple Watch Series 9 offers 0.9 day/s of battery life, while the average smartwatch offers 7 day/s.
      Converted from roughly 18-24 hours of battery life.
      What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.
      When it matters: When you do not want to charge the watch too often.

      Importance: HIGH

      Good value: >=7 days

      Apple Watch Series 9 offers 0.9 day/s of battery life, while the average smartwatch offers 7 day/s.0.88 day/s vs 7 day/s
    • Not compatible with Android
      Apple Watch Series 9 is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
      What it is: Shows how well the smartwatch works with Android pairing, syncing, and core features.
      When it matters: When you use an Android phone and want the watch to pair, sync, and keep its main features working properly.

      Importance: MEDIUM

      Apple Watch Series 9 is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • Basic display type
      Apple Watch Series 9 uses OLED display technology, while the average smartwatch features AMOLED.
      Retina branding. LTPO panel wording.
      What it is: The screen technology used by the watch, such as AMOLED, OLED, or memory-in-pixel LCD.
      When it matters: When you want the screen to be easy to read at a glance.

      Importance: HIGH

      Apple Watch Series 9 uses OLED display technology, while the average smartwatch features AMOLED.OLED vs AMOLED
    • No smart alarm
      Apple Watch Series 9 does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
      What it is: A smart alarm tries to wake you during a lighter sleep phase within a chosen time window instead of at one fixed minute.
      When it matters: It matters if you wear your smartwatch overnight and want a gentler wake-up based on your sleep pattern rather than a standard fixed alarm.

      Importance: LOW

      Apple Watch Series 9 does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
    • 13 h shorter GPS battery life
      Apple Watch Series 9 lasts less with GPS on than the average smartwatch (7 h vs 20 h). The average smartwatch lasts 20 h.
      What it is: The expected runtime when satellite tracking stays active throughout use.
      When it matters: When you do not want to charge the watch too often.

      Importance: HIGH

      Good value: >=35 h

      Apple Watch Series 9 lasts less with GPS on than the average smartwatch (7 h vs 20 h). The average smartwatch lasts 20 h.7 h vs 20 h
    • 12.5 h shorter training battery life
      Apple Watch Series 9 lasts less in training mode than the average smartwatch (7.5 h vs 20 h). The average smartwatch lasts 20 h.
      What it is: The expected endurance while workout tracking and related training functions are active.
      When it matters: When you do not want to charge the watch too often.

      Importance: HIGH

      Good value: >=36.8 h

      Apple Watch Series 9 lasts less in training mode than the average smartwatch (7.5 h vs 20 h). The average smartwatch lasts 20 h.7.5 h vs 20 h

    Graphic comparison of Apple Watch Series 9 and other Smartwatches

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    Third-party reviews

    What customers like about Apple Watch Series 9?

    • S9 chip provides a noticeably snappier and smoother user experience
    • Display is significantly brighter, reaching up to 2,000 nits for better outdoor visibility
    • New Double Tap gesture allows for convenient one-handed operation of key functions
    • On-device Siri processing makes simple voice commands faster and more reliable
    • Excellent and highly accurate heart rate and GPS tracking for fitness activities
    • Carbon-neutral build options appeal to environmentally conscious buyers

    What customers dislike about Apple Watch Series 9?

    • Battery life is still limited to roughly 18–36 hours, necessitating daily charging for most
    • No compatibility with Android smartphones, strictly limiting the user base
    • Design is virtually unchanged from several previous generations
    • Blood oxygen sensing feature is currently unavailable on new units sold in the US due to a patent dispute
    • Incremental improvements make it a poor value for those upgrading from a Series 7 or Series 8
    • Native health and sleep data can feel like 'raw data' and lacks the proactive analysis found in competitors like Garmin

    Expert reviews

    D
    digitec.ch
    07/12/2023

    The Apple Watch Series 9 is a refined, iterative update featuring a faster S9 chip for on-device Siri, a brighter 2,000-nit display, and the intuitive Double Tap gesture, yet it fails to improve on poor battery endurance, necessitating daily charging. While highlighting excellent performance, the review finds the persistent need to charge—which disrupts consistent sleep tracking—to...Read more

    M
    macworld.com
    27/10/2023

    The Macworld review characterizes the Apple Watch Series 9 as a high-quality iteration and the best general-purpose smartwatch for iPhone users. Key pros include the faster S9 processor, a brighter 2,000-nit display, and surprisingly strong battery life that exceeded 18 hours in real-world testing. New features powered by the updated silicon, such as the 'Double Tap' gesture for...Read more

    T
    trustedreviews.com
    27/10/2023

    The Trusted Reviews analysis of the Apple Watch Series 9 highlights it as a refined, incremental update offering significant performance gains through the S9 SiP chip, enabling on-device Siri and a brighter 2,000-nit display. Key features include the new Double Tap gesture for one-handed control and the introduction of carbon-neutral, eco-friendly models. Despite these improvements,...Read more

    T
    t3.com
    05/10/2023

    The T3 review highlights the Apple Watch Series 9 as a performance-driven update, featuring the new S9 SiP for faster processing, improved Siri functionality, and the innovative Double Tap gesture for one-handed control. Key improvements include a brighter 2,000-nit display and, for the first time, carbon-neutral configurations. While praised for internal upgrades, the review notes...Read more

    T
    techradar.com
    12/09/2023

    The Apple Watch Series 9 is characterized by TechRadar as a "game-changing" iterative update, focusing on the new S9 SiP for improved performance and the innovative "Double Tap" gesture control. Key pros include the faster processing power, a brighter 2,000-nit display that can drop to 1 nit, and its status as Apple’s first carbon-neutral product. However, the review notes...Read more

    C
    cnet.com
    28/12/2023

    Three months after release, the Apple Watch Series 9 remains the top smartwatch for iPhone users due to a faster S9 chip and improved on-device Siri capabilities. Key advantages include the convenient Double Tap gesture and a more responsive interface, although it functions largely as a minor iteration over the Series 8. The review notes, however, that these optimizations feel...Read more

    E
    expertreviews.co.uk
    19/10/2023

    The Apple Watch Series 9 is hailed by Expert Reviews as a top-tier smartwatch for iPhone users, boasting a 2,000-nit display and a new, functional Double Tap gesture enabled by the swift S9 chip. Key improvements include faster on-device Siri, enhanced Precision Finding for iPhones, and the product line's first carbon-neutral certification. Despite these upgrades, the review notes...Read more

    D
    dcrainmaker.com
    20/09/2023

    The Apple Watch Series 9 serves as an iterative update focusing on internal improvements like the S9 SiP chip, which enables faster, on-device Siri processing and a new, convenient 'Double Tap' gesture. Display brightness is doubled to 2,000 nits, though the physical design remains identical to the Series 8. Fitness tracking remains top-tier with exceptional heart rate and GPS...Read more

    U
    uk.pcmag.com
    20/09/2023

    The Apple Watch Series 9 review by PCMag highlights the device as a powerful, feature-rich wearable that remains the top choice for iPhone users, powered by the new S9 chip for faster, on-device Siri interactions. A key addition is the double-tap gesture, allowing users to control primary app functions hands-free by pinching their index finger and thumb together. Technical...Read more

    C
    cnet.com
    20/09/2023

    The Apple Watch Series 9 is characterized as a minor upgrade focused on internal efficiency, featuring the new S9 chip for faster processing, improved dictation, and a 2,000-nit display for enhanced outdoor visibility. Key additions include the Double Tap gesture for one-handed control and Precision Finding for iPhone 15 users, though the design and health sensors remain identical...Read more

    T
    theverge.com
    20/09/2023

    The Apple Watch Series 9 and Ultra 2 are characterized as steady improvements driven by the new S9 SiP, featuring a brighter display (up to 3,000 nits on Ultra 2) and on-device Siri. A key, intuitive "Double Tap" gesture allows one-handed control, while a new UWB chip enables Precision Finding for the iPhone 15, though this feature is limited to that specific phone line. While the...Read more

    N
    nextpit.de
    04/02/2024

    The Apple Watch Series 9 offers an iterative update featuring the faster S9 SiP, enabling on-device Siri, a new 'Double Tap' gesture, and a brighter 2,000-nit display, say NextPit. Key advantages include improved performance and eco-friendly, carbon-neutral options, though the design remains unchanged, and the 18-hour battery life still necessitates daily charging. Technically, the...Read more

    G
    galaxus.at
    07/12/2023

    The Galaxus review of the Apple Watch Series 9 highlights it as a refined but incremental update featuring a 2,000-nit display and the new S9 SiP for improved performance, including offline Siri. Key functional advantages include the intuitive Double Tap gesture for hands-free control, though the 41 mm model's design remains nearly identical to its predecessor. However, the review...Read more

    V
    velomotion.de
    16/10/2024

    The Velomotion review highlights the Apple Watch Series 9 (41mm GPS + Cellular) as a versatile, lightweight (39.4g) smartwatch with a high-quality, vivid OLED display that is fully legible in sunlight. Key pros include seamless iPhone integration, an intuitive setup, and advanced health monitoring features, such as ECG, blood oxygen, and fall detection. Performance is bolstered by...Read more

    N
    notebookcheck.com
    08/12/2023

    The Apple Watch Series 9 (45 mm) review highlights a refined, faster experience powered by the new S9 SiP, featuring an improved 1.9-inch LTPO OLED display with a peak brightness of over 1,600 nits and the convenient 'Double Tap' gesture for one-handed operation. The device maintains top-tier build quality, offers increased 64 GB internal storage, and, according to Notebookcheck,...Read more

    I
    imtest.de
    27/11/2024

    The Apple Watch Series 9 features the new S9 SiP, significantly boosting performance, enabling on-device Siri, and introducing the double-tap gesture for one-handed operation. The display now achieves a peak brightness of 2,000 nits while offering improved power efficiency. Despite the internal upgrades, the device retains an identical design to the Series 8, limiting the sense of...Read more

    T
    test.de
    14/11/2025

    The Apple Watch Series 9 is lauded for its bright 2,000-nit display, fast S9 chip, and intuitive 'Double Tap' gesture control, offering superior integration within the Apple ecosystem and accurate health monitoring (ECG, temperature, blood oxygen). It is considered a top-tier wearable for fitness and daily tasks, particularly for those heavily invested in Apple products. Despite its...Read more

    C
    computerbild.de
    04/06/2025

    Computer Bild highlights the Apple Watch Series 9 as the premier choice for iPhone users, driven by the S9 SiP (System in Package) which boosts performance, enables on-device Siri, and introduces the 'Double Tap' gesture. While the improvements are incremental, the user experience is noticeably snappier. Key pros include a 2,000-nit display for improved visibility and high...Read more

    H
    heise.de
    13/01/2024

    The Apple Watch Series 9 features an S9 SiP chip for improved performance, a 2,000-nit peak brightness display, and 64GB storage, while retaining the 41mm/45mm design of its predecessor. Key advantages include extreme display readability in sunlight and highly responsive, fluid user interface navigation. A significant addition is the 'Double Tap' gesture, enabling one-handed control...Read more

    D
    digitec.ch
    07/12/2023

    The Digitec review of the Apple Watch Series 9 highlights a 2,000-nit display, the faster S9 chip enabling offline Siri, and the convenient double-tap gesture as major upgrades. While the 41mm aluminum model is praised for comfort, the review identifies the roughly 24-hour battery life as a significant drawback, forcing daily charging and hindering continuous sleep tracking....Read more

    C
    capital.fr
    22/11/2023

    The Apple Watch Series 9 is praised for its comprehensive health and sports tracking, particularly its enhanced integration with cycling. Key pros include the vibrant, 2,000-nit Amoled display, high precision heart rate/GPS sensors, and the S9 chip's performance, which enables a new double-tap gesture useful for cyclists. Specific to cycling, watchOS 10 updates allow the watch to...Read more

    L
    leclaireur.fnac.com
    26/10/2023

    The Apple Watch Series 9 is characterized as a performance-driven update featuring a new S9 chip that enhances efficiency and enables a 2,000-nit display capable of dimming to 1 nit. Key upgrades include the new 'Double Tap' gesture for gesture-controlled, hands-free operation and a faster Neural Engine for on-device Siri processing. The design remains largely unchanged from the...Read more

    L
    lesnumeriques.com
    20/10/2023

    According to Les Numériques, the Apple Watch Series 9 is a polished, iterative update featuring a significantly brighter 2000-nit display and the S9 chip, which enables the 'Double Tap' gesture and faster Siri. It maintains high-accuracy tracking for fitness, making it a top-tier choice for daily use, although it lacks major design changes from the Series 7. Key criticisms focus on...Read more

    F
    frandroid.com
    02/10/2023

    The Apple Watch Series 9 is a refined, iterative update featuring the new S9 SiP, which enables faster performance and a 2,000-nit display, doubling the brightness of the previous model. Key pros include the exceptionally legible display in sunlight, faster Siri processing, and for the first time, carbon-neutral configuration options. A major feature is the 'Double Tap' gesture,...Read more

    N
    notebookcheck.biz
    09/12/2023

    The Apple Watch Series 9 (45 mm) features a significantly brighter 2,000-nit display and the faster S9 SiP, which enables on-device Siri and the intuitive "Double Tap" gesture. Performance is fluid with 64 GB of storage, while the battery lasts up to 1.5 to 2 days under moderate use. Despite being an iterative update with similar design and health sensors as its predecessor, the...Read more

    N
    numerama.com
    10 septembre 2024

    According to a review from Numerama, the primary advancement in the Apple Watch Ultra 2 and Series 9 is watchOS 10, which introduces a redesigned interface and the 'Smart Stack' feature. Powered by the new S9 chip, both models gain on-device Siri and the convenient 'Double Tap' gesture control, despite having nearly identical physical designs to their predecessors. The Apple Watch...Read more

    Q
    quechoisir.org
    31/10/2024

    The Apple Watch Series 9 features the new S9 SiP, enabling faster on-device Siri processing and a 'Double Tap' gesture for one-handed operation. The display now reaches a peak brightness of 2,000 nits for improved sunlight readability, while the device maintains a design identical to previous models. Key strengths include enhanced, highly accurate health and fitness tracking, along...Read more

    R
    runnea.fr
    06/06/2024

    The Apple Watch Series 9, highlighted for its 2,000-nit Retina LTPO OLED display and the performance-boosting S9 chip, provides a refined, responsive experience for iPhone users featuring the new "Double Tap" gesture. For athletic performance, the device features highly accurate GPS and heart rate sensors alongside advanced health metrics, including ECG and blood oxygen tracking....Read more

    N
    nextpit.fr
    08/02/2024

    The Apple Watch Series 9, according to NextPit, is an iterative update centered on the new S9 SiP, offering superior performance through the Double Tap gesture and faster on-device Siri. Key enhancements include a significantly brighter 2,000-nit display, improved, efficient performance, and new carbon-neutral manufacturing options. Despite these gains, the device is held back by a...Read more

    P
    presse-citron.net
    19/12/2023

    The Apple Watch Series 9 features the S9 SiP, bringing a 30% faster GPU and a four-core Neural Engine for improved performance, paired with a new 2,000-nit display for better outdoor visibility. Key advantages include faster on-device Siri processing and a brighter screen, though the design remains largely unchanged from previous models. The new 'Double Tap' gesture enables...Read more

    2
    20minutos.es
    29 de diciembre de 2023

    The 20Minutos review characterizes the Apple Watch Series 9 as a premium, 'unbeatable' smartwatch that excels in fluidity and precision, highlighting its elegant, lightweight design and a brighter 2,000-nit display as key pros. While the display ensures perfect visibility in sunlight, the physical appearance remains identical to previous generations. Specific functional pros include...Read more

    G
    global.techradar.com
    03/10/2023

    The Apple Watch Series 9 introduces the S9 SiP, featuring a 30% faster GPU and a quad-core Neural Engine that enables on-device Siri and the new 'Double Tap' gesture. This performance boost significantly enhances user interaction, allowing for one-handed control of core functions like answering calls or managing notifications. The display offers 2,000 nits of peak brightness for...Read more

    R
    runnea.it
    06/06/2024

    The Apple Watch Series 9 introduces the S9 SiP chip, significantly boosting performance, and a 2,000-nit Retina display for superior visibility, marking a major update in brightness and responsiveness. A key highlight is the new 'Double Tap' gesture for hands-free interaction, along with improved on-device Siri processing and a commitment to carbon neutrality. For fitness tracking,...Read more

    A
    andreagaleazzi.com
    07/10/2023

    Andrea Galeazzi's review highlights that while the physical designs of the Apple Watch Series 9 and Ultra 2 remain unchanged, internal upgrades like the S9 chip and the 'Double Tap' gesture significantly enhance performance. Both models are marketed as carbon-neutral, marking a major step for Apple in sustainability, especially when paired with specific bands. Key pros for the Ultra...Read more

    I
    iculture.nl
    12/09/2023

    The iCulture review highlights the Apple Watch Series 9 as a powerful, iterative update driven by the new S9 SiP, enabling faster performance, the 'Double Tap' gesture, and a brighter 2,000-nit display. Key improvements include faster on-device Siri, enhanced 'Precision Finding' via a new Ultra Wideband chip, 64GB storage, and carbon-neutral configurations. The design remains...Read more

    H
    hardloopzone.nl
    15/10/2023

    The Hardloopzone.nl review describes the Apple Watch Series 9 as a refined, high-performance smartwatch featuring the new S9 SiP chip, which enables the intuitive "Double Tap" gesture and faster on-device Siri processing. Key strengths include a significantly brighter Retina display (up to 2,000 nits) and enhanced, eco-friendly construction. However, the device features identical...Read more

    G
    global.techradar.com
    28/09/2023

    The Apple Watch Series 9 focuses on internal refinement, featuring the S9 SiP chip which provides a 60% boost in transistors and a 30% faster GPU for improved performance. Key advancements include the "Double Tap" gesture for one-handed operation and faster, more secure on-device Siri processing. A significant display upgrade brings peak brightness to 2,000 nits while allowing for a...Read more

    I
    id.nl
    18/11/2023

    The Apple Watch Series 9 offers a refined but iterative update, featuring the faster S9 chip for improved performance, a brighter 2,000-nit display, and the new 'Double Tap' gesture for hands-free control. While the device excels in responsiveness and user experience, it lacks significant, groundbreaking changes compared to previous models. Pros include the swift interface enabled...Read more

    I
    iphoned.nl
    08/11/2023

    According to iPhoned.nl, the Apple Watch Series 9 is a solid, iterative update driven by the powerful S9 chip, which delivers a faster interface and enables the practical "Double Tap" gesture. The display now reaches 2,000 nits for improved outdoor visibility, and the device introduces on-device Siri processing along with a second-gen Ultra Wideband chip for better locating iPhones....Read more

    I
    iculture.nl
    05/10/2023

    The iCulture review positions the Apple Watch Series 9 as a refined 'peak' of the current design language, noting that while the exterior remains unchanged, the internal S9 chip brings meaningful performance gains. Pros include a significantly brighter 2,000-nit display and a new 'Double Tap' gesture for one-handed operation, while cons include the lack of an Action Button and no...Read more

    C
    consumentenbond.nl
    26/09/2023

    The Apple Watch Series 9, reviewed by Consumentenbond, introduces the faster S9 SiP chip and a significantly brighter display reaching 2,000 nits, which improves legibility in sunlight while allowing for 1-nit brightness in dark settings. Key features include the new 'Double Tap' gesture for convenient one-handed operation and on-device Siri processing for faster voice commands. The...Read more

    Video reviews

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