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Apple Watch Series 8 45mm Review | 126 Data compared

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  • Avg. price: ~£360
  • Screen size: 1.90 inch
  • Battery life: 0.88 day/s
  • Display type: OLED

Apple Watch Series 8 45mm review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

8.2

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%

8.1

Technical Score

10.0%

8.9

User score

Excellent
8.1

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%

4.2

Battery

14.0%

10

Smart features

12.0%

8.9

Connectivity

9.0%

8.1

Display & Design

4.0%

7.9

Hardware

Excellent
8.9

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%

8.4

User reviews

30.0%

10

Popularity

User score:
amazon
4.2
(652)
amazon
4.2
(107)
amazon
4.2
(55)

(Reviews last updated: Apr 2026)

Excellent
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    Best prices

    Best rankings

    ?

    Available: ranking among products currently available (including other versions of this product).
    All: ranking among all products in the database.

    Technical Specifications of smartwatch Apple Watch Series 8 45mm

    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%

    4.2

    Battery

    14.0%

    10

    Smart features

    12.0%

    8.9

    Connectivity

    9.0%

    8.1

    Display & Design

    4.0%

    7.9

    Hardware

    8.1
    Apple Watch Series 8 45mm has a technical score of 8.08 points, which is higher than 88.5% 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%

    8.4

    User reviews

    30.0%

    10

    Popularity

    User score:
    amazon
    4.2
    (652)
    amazon
    4.2
    (107)
    amazon
    4.2
    (55)

    (Reviews last updated: Apr 2026)

    8.9
    Apple Watch Series 8 45mm has a user score of 8.88 points, which is higher than 87.2% 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 8 45mm 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%

    8.2

    Overall score

    40.0%

    8.6

    Price

    8.3
    Apple Watch Series 8 45mm has a quality-to-price ratio of 8.3 points, which is higher than 84.4% 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 8 45mm 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 8 45mm supports blood oxygen monitoring. 64.4% of smartwatches support blood oxygen monitoring.
    Availability may vary by region or model.
    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 8 45mm supports ECG. 15.1% of smartwatches support ECG.
    Availability may vary by region or model version. May require a compatible phone, software version, or app setup.
    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 8 45mm 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 8 45mm 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 8 45mm 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 8 45mm 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 8 45mm 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 8 45mm 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 8 45mm 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 h
    Apple Watch Series 8 45mm lasts 7 h in training mode which is shorter than 78.1% of smartwatches and equal to that of 4.5% 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 8 45mm 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

    308 mAh
    Apple Watch Series 8 45mm has a battery capacity of 308 mAh which is larger than the batteries in 53.9% of smartwatches and equal to those in 0.2% 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 8 45mm 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 8 45mm 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.
    OS detail: watchOS (9).
    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 8 45mm 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 8 45mm 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 8 45mm 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 8 45mm 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

    ?
    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 8 45mm 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 8 45mm 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 8 45mm 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

    1.90 inch
    Apple Watch Series 8 45mm has a screen size of 1.90 inch which is larger than the screens of 93.8% of smartwatches of smartwatches.
    Some sources mention multiple/uncertain size variants.
    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 8 45mm 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.
    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

    396 x 484
    Apple Watch Series 8 45mm has a display resolution of 396 x 484 which is higher than that of 69.3% of smartwatches of smartwatches.
    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

    329 ppi
    Apple Watch Series 8 45mm has a pixel density of 329 ppi which is higher than that of 56.4% of smartwatches 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

    1,000 nits
    Apple Watch Series 8 45mm reaches 1000 nits nits of display brightness, which is higher than that of 59.5% of smartwatches and equal to that of 26.5% 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

    2 x 1.5 GHz
    Apple Watch Series 8 45mm uses a CPU configuration of 2 x 1.5 GHz which is faster than that in 77.2% of smartwatches and equal to that in 1.2% of smartwatches.
    Derived from core-count and per-core clock notation
    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 S8
    Apple Watch Series 8 45mm uses the Apple S8 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 8 45mm 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

    32 GB
    Apple Watch Series 8 45mm uses 32 GB for internal storage which is larger than that of 84.8% of smartwatches and equal to that of 13.4% 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 8 45mm does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Apple Watch Series 8 45mm vs the average smartwatch

    • Has ECG
      Apple Watch Series 845mm supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
      Availability may vary by region or model version. May require a compatible phone, software version, or app setup.
      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 845mm supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
    • More advanced operating system
      Apple Watch Series 845mm runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
      OS detail: watchOS (9).
      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 845mm runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).watchOS vs Proprietary OS
    • Includes fall detection
      Apple Watch Series 845mm 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 845mm supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • Includes wireless charging
      Apple Watch Series 845mm 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 845mm supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 28 GB more storage
      Apple Watch Series 845mm offers more internal storage than the average smartwatch (32 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 845mm offers more internal storage than the average smartwatch (32 GB vs 4 GB). The average smartwatch provides 4 GB of storage.32 GB vs 4 GB
    • Has NFC
      Apple Watch Series 845mm 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 845mm supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Has temperature sensor
      Apple Watch Series 845mm includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
      Temperature readings may be skin/ambient trends, not core-body medical values.
      What it is: A sensor that records skin or wrist temperature changes and longer-term trends.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: MEDIUM

      Apple Watch Series 845mm includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
    • 0.5 inch larger screen size
      Apple Watch Series 845mm has a larger screen size than the average smartwatch (1.9 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
      Some sources mention multiple/uncertain size variants.
      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

      Apple Watch Series 845mm has a larger screen size than the average smartwatch (1.9 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.1.90 inch vs 1.40 inch
    • Has ECG
      Apple Watch Series 845mm supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
    • Has temperature sensor
      Apple Watch Series 845mm includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
    • Has HRV tracking
      Apple Watch Series 845mm supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Supports VO2 max
      Apple Watch Series 845mm measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Has irregular heart alerts
      Apple Watch Series 845mm 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 845mm supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Has multi-sport mode
      Apple Watch Series 845mm includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
    • Has barometer
      Apple Watch Series 845mm includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Has cadence sensor
      Apple Watch Series 845mm includes a cadence sensor, the average smartwatch does not. 20.1% of smartwatches include a cadence sensor.
    • Has external HR monitor
      Apple Watch Series 845mm 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 845mm supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 45 min shorter charge time
      Apple Watch Series 845mm charges faster than the average smartwatch (75 min vs 120 min). The average smartwatch charges in 120 min.
    • Has NFC
      Apple Watch Series 845mm supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Includes maps
      Apple Watch Series 845mm supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
    • Has compass
      Apple Watch Series 845mm includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Supports Wi-Fi
      Apple Watch Series 845mm supports Wi-Fi, the average smartwatch does not. 43.4% of smartwatches support Wi-Fi.
    • Supports Galileo
      Apple Watch Series 845mm supports Galileo navigation, the average smartwatch does not. 38.7% of smartwatches support Galileo navigation.
    • Has UWB chip
      Apple Watch Series 845mm includes a UWB chip, while the average smartwatch does not. 2.6% of smartwatches include UWB.
    • Newer Bluetooth version
      Apple Watch Series 845mm supports a newer Bluetooth version than the average smartwatch (5.3 vs 5.0). The average smartwatch uses 5.0.
    • 0.5 inch larger screen size
      Apple Watch Series 845mm has a larger screen size than the average smartwatch (1.9 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
    • 400 nits higher display brightness
      Apple Watch Series 845mm has higher display brightness than the average smartwatch (1,000 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.
    • Better case material
      Apple Watch Series 845mm uses aluminum, stainless steel for the case material, while the average smartwatch uses polycarbonate.
    • Better band material
      Apple Watch Series 845mm uses silicone, leather, nylon, stainless steel for the band material, while the average smartwatch uses silicone.
    • Higher resolution
      Apple Watch Series 845mm has a display resolution of 396x 484, while the average smartwatch reaches 352x 430.
    • 0.9 mm thinner watch body
      Apple Watch Series 845mm is thinner than the average smartwatch (10.7 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
    • More advanced operating system
      Apple Watch Series 845mm runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
    • Includes fall detection
      Apple Watch Series 845mm supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • More frequent updates
      Apple Watch Series 845mm receives regular software updates, while the average smartwatch receives ended updates.
    • Includes crash detection
      Apple Watch Series 845mm supports crash detection, the average smartwatch does not. 11.5% of smartwatches support crash detection.
    • Supports Emergency SOS
      Apple Watch Series 845mm includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Supports third-party apps
      Apple Watch Series 845mm supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • 28 GB more storage
      Apple Watch Series 845mm offers more internal storage than the average smartwatch (32 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
    • More advanced processor model
      Apple Watch Series 845mm uses the Apple S8 processor model, while the average smartwatch uses Snapdragon 400.
    • Faster CPU speed
      Apple Watch Series 845mm uses a CPU configuration of 2x 1.5 GHz, while the average smartwatch uses 1 GHz.

    Total
    Overall
    Health
    Fitness
    Battery
    Connectivity
    Display & Design
    Smart features
    Hardware
    • No stress monitoring
      Apple Watch Series 845mm does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Available only via third-party apps.
    • 5,534 m lower max altitude
      Apple Watch Series 845mm supports a lower maximum altitude than the average smartwatch (3,000 m vs 8,534 m). The average smartwatch reaches 8,534 m.
      Includes conversion from feet to meters.
    • 6.12 day/s shorter battery life
      Apple Watch Series 845mm 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 845mm lasts less with GPS on than the average smartwatch (7 h vs 20 h). The average smartwatch lasts 20 h.
    • 13 h shorter training battery life
      Apple Watch Series 845mm lasts less in training mode than the average smartwatch (7 h vs 20 h). The average smartwatch lasts 20 h.
    • Not compatible with Android
      Apple Watch Series 845mm is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • Lower IP rating
      Apple Watch Series 845mm 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 845mm uses OLED display technology, while the average smartwatch features AMOLED.
      LTPO panel wording.
    • No smart alarm
      Apple Watch Series 845mm does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
    • Lower IP rating
      Apple Watch Series 845mm 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 845mm has a lower IP rating than the average smartwatch (IP6X vs IP68).IP6X vs IP68
    • No stress monitoring
      Apple Watch Series 845mm does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Available only via 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 845mm does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.No vs yes
    • 6.12 day/s shorter battery life
      Apple Watch Series 845mm 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 845mm 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 845mm 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 845mm is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • Basic display type
      Apple Watch Series 845mm uses OLED display technology, while the average smartwatch features AMOLED.
      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 845mm uses OLED display technology, while the average smartwatch features AMOLED.OLED vs AMOLED
    • No smart alarm
      Apple Watch Series 845mm 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 845mm 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 845mm 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 845mm 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
    • 13 h shorter training battery life
      Apple Watch Series 845mm lasts less in training mode than the average smartwatch (7 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 845mm lasts less in training mode than the average smartwatch (7 h vs 20 h). The average smartwatch lasts 20 h.7 h vs 20 h
    Total
    Overall
    Health
    Fitness
    Battery
    Connectivity
    Display & Design
    Smart features

    Graphic comparison of Apple Watch Series 8 45mm and other Smartwatches

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    Third-party reviews

    amazon
    4.2
    652 Reviews
    amazon
    4.2
    107 Reviews
    amazon
    4.2
    55 Reviews

    (Reviews last updated: Apr 2026)

    What customers like about Apple Watch Series 8 45mm?

    • Large, clear Always-On Retina display with slim bezels
    • Comprehensive health tracking including ECG, Blood Oxygen, and new temperature sensor
    • Premium build quality and comfortable design for daily wear
    • Excellent app ecosystem and seamless integration with iPhone
    • Safety features such as Fall Detection and the new Crash Detection
    • Fast charging capabilities (0-100% in about an hour)

    What customers dislike about Apple Watch Series 8 45mm?

    • Short 18-hour 'all-day' battery life requires daily charging
    • Minimal hardware and design changes compared to Series 7
    • Curved screen edges can lead to accidental taps or difficulty hitting corner icons
    • Lack of a physical 'Action Button' found on the Ultra model
    • Requires an iPhone for setup and full functionality
    • Charging brick (wall adapter) not included in the box

    Expert reviews

    T
    trustedreviews.com
    04/11/2022
    Apple Watch 8 Review - Trusted Reviews

    The Apple Watch Series 8 is characterized by Trusted Reviews as a highly refined but iterative update that solidifies its position as the best smartwatch for iPhone users, retaining the design and bright Always-On Retina display of its predecessor. Key, specific upgrades include a new temperature sensor for retrospective ovulation estimates and a high-G accelerometer enabling car...Read more

    H
    hodinkee.com
    16/09/2022
    Apple Watch Series 8: The HODINKEE Review

    The Hodinkee review characterizes the Apple Watch Series 8 as an iterative but significant evolution, focusing on internal refinements like dual-sensor temperature tracking for women’s health and a new high-g accelerometer for crash detection. While visually similar to its predecessor, it is highlighted as a vital health and safety companion that builds on the always-on display...Read more

    T
    theverge.com
    15/09/2022
    Apple Watch Series 8 review: if it ain't broke | The Verge

    The Apple Watch Series 8 is characterized as an incremental update, maintaining the Series 7 design and 18-hour battery life while introducing new, specialized sensors for crash detection and enhanced temperature tracking. It is deemed the most versatile, high-performing smartwatch for iPhone users, driven by deep ecosystem integration and improved internal hardware like a high-g...Read more

    T
    tomeversley.com
    27/02/2026
    Apple Watch Series 8: Long Term Review — Tom Eversley Would you like to see a comparison of battery life results from these specific 45mm model tests?

    In a long-term review, the Apple Watch Series 8 is noted for its enduring build quality, with a premium aluminum construction and a display that remains highly responsive after extended daily use. The device continues to offer consistent software support, holding its value well in the market and providing a robust experience. Key health and safety features, including accurate heart...Read more

    M
    macworld.com
    04/10/2022
    Apple Watch Series 8 (2022) review - Macworld

    Macworld describes the Apple Watch Series 8 as an excellent, though iterative, smartwatch, highlighting its bright always-on display, durable design, and comprehensive health sensors like the new temperature monitoring and crash detection. While praised for its performance and deep ecosystem integration, the review notes the device lacks significant external design changes from the...Read more

    S
    stuff.tv
    17/02/2025
    Apple Watch Series 8 review: marginal gains, but still a great ...

    The Stuff.tv review describes the Apple Watch Series 8 as a top-tier, comfortable smartwatch that offers only marginal improvements over its predecessor, focusing on new health sensors and safety features. While praised for its performance, notable drawbacks include a lack of significant hardware updates and a battery that still requires daily charging. Ultimately, the review finds...Read more

    E
    expertreviews.co.uk
    13/07/2023
    Apple Watch Series 8 review: A health and fitness powerhouse

    Expert Reviews identifies the Apple Watch Series 8 as the top traditional smartwatch for iPhone users, offering a refined, yet iterative, experience over the Series 7. While retaining the familiar 41mm/45mm design and 1,000-nit display, the new S8 chip provides a fast interface, though it lacks a significant performance boost over previous models. Key new features include a...Read more

    T
    tomsguide.com
    07/07/2023
    Apple Watch Series 8 review | Tom's Guide

    The Apple Watch Series 8 is identified by Tom's Guide as a top-tier, yet incremental, update to the Apple Watch lineup, featuring a new skin temperature sensor for health tracking and crash detection for enhanced safety. While it introduces these key, proactive features, much of its utility is driven by the watchOS 9 software, which also brings a new low-power mode, allowing up to...Read more

    U
    uk.pcmag.com
    15/09/2022
    Apple Watch Series 8 - Review 2022 - PCMag UK

    The PCMag review highlights the Apple Watch Series 8 as a "Goldilocks" device balancing advanced health features with an accessible price, featuring new dual temperature sensors for cycle tracking and a high-G accelerometer for car crash detection. Pros include a bright, always-on Retina display, robust health/safety features, and excellent watchOS integration, though it inherits...Read more

    S
    spiegel.de
    19/09/2022
    Apple Watch 8 im Test: Eine Uhr für den Notfall

    The Spiegel review characterizes the Apple Watch Series 8 as a minor, health-focused evolution with a familiar design, bright Always-On display, and a new S8 chip that feels similar to its predecessor in daily use. Key pros include a dual-temperature sensor for tracking women's health and advanced crash detection, alongside the robust watchOS 9 which adds a useful low-power mode for...Read more

    (Translated)Show original
    N
    notebookcheck.com
    16/12/2022
    Langzeittest Apple Watch Series 8 - Kleines Upgrade für die Vorzeige-Smartwatch

    The Apple Watch Series 8 is a high-quality, iterative update that remains the 'gold standard' for iPhone users, offering a fast S8 chip and a bright, nearly borderless Always-On Retina display. It retains a premium build with improved durability, though key disadvantages include a stagnant 18-hour battery life and a design identical to the Series 7. New functionality focuses on...Read more

    (Translated)Show original
    T
    test.de
    14/11/2025
    Test: Apple Watch Series 8 Aluminium (GPS) 45 mm

    The Garmin Forerunner 265 is a top-tier running watch, upgraded with a vibrant AMOLED touchscreen that significantly improves the readability of complex data screens and health metrics [Stiftung Warentest (test.de)]. It excels in fitness tracking, offering advanced training readiness insights, multi-band GPS for superior accuracy, and offline music storage for phone-free workouts....Read more

    (Translated)Show original
    C
    china-gadgets.de
    10/03/2023
    Apple Watch Series 8 im Test: Zurecht die meistverkaufte Smartwatch?

    The China-Gadgets.de review describes the Apple Watch Series 8 as a solid but iterative update, highlighting its excellent 1000-nit Always-On OLED display and premium build quality. Key pros include high responsiveness, accurate health tracking (ECG and blood oxygen), and new safety features like car crash detection and skin temperature sensors for ovulation tracking. On the...Read more

    (Translated)Show original
    H
    heise.de
    25/03/2023
    Apple Watch Series 8 review: The best smartwatch for the iPhone

    The Heise review characterizes the Apple Watch Series 8 as a refined, mature evolution rather than a radical overhaul, establishing it as the best, albeit incremental, choice for most iPhone users. Key strengths include new health-focused sensors, such as car crash detection and dual-temperature tracking for ovulation cycle prediction, alongside the continued excellence of the...Read more

    (Translated)Show original
    T
    test-achats.be
    15 mai 2023
    Test APPLE WATCH SERIES 8 45MM - Testachats

    The Apple Watch Series 8 45mm is presented as a high-quality, iterative refinement rather than a revolutionary leap from its predecessor, featuring a dual-temperature sensor for ovulation/sleep tracking and a crash detection system. Its standout features include an expansive, 1,000-nit always-on Retina display and a durable, IP6X-rated design, though it retains the same aesthetic as...Read more

    (Translated)Show original
    F
    frandroid.com
    23 septembre 2022
    Test de l’Apple Watch Series 8 : des nouveautés bienvenues… sans grande révolution

    The Apple Watch Series 8 is characterized as a highly refined, incremental update that maintains a leadership position in the smartwatch market, featuring an exceptionally fluid operating system, a 1,000-nit display, and highly accurate GPS tracking. While not a revolutionary hardware shift, it offers a polished experience, particularly for iPhone users seeking a benchmark wearable....Read more

    (Translated)Show original
    L
    lesnumeriques.com
    1 octobre 2022
    Test Apple Watch Series 8 : des ajouts discrets pour une montre aboutie

    Les Numériques describes the Apple Watch Series 8 as a high-quality, iterative update maintaining Apple's lead for iPhone users. The review praises its premium build, fluid interface, and brilliant Always-On Amoled display, alongside highly precise health sensors and seamless ecosystem integration. New features include a dual-sensor skin temperature reader for cycle monitoring and...Read more

    (Translated)Show original
    G
    global.techradar.com
    22/09/2012
    Prise en main de l'Apple Watch 8

    The Apple Watch Series 8 is a high-quality, iterative update that retains the familiar design and 1,000-nit OLED display of the Series 7, offering a refined, comfortable build and an unmatched app ecosystem as key pros. However, a major con is the lack of a significant design overhaul or performance boost, making it a minimal upgrade for recent model owners. Key new features focus...Read more

    (Translated)Show original
    N
    numerama.com
    24/12/2011
    Test : l'Apple Watch Series 8 ne sait pas si j'ai de la fièvre, mais c'est la meilleure montre

    The Numerama review characterizes the Apple Watch Series 8 as a highly iterative update that maintains its position as the best overall smartwatch for iPhone users, offering a refined, fluid experience with minimal design or hardware changes from previous generations. Key pros include unmatched ecosystem integration, a high-brightness display, and new safety features like crash...Read more

    (Translated)Show original
    G
    gqitalia.it
    18/09/2022
    L'Apple Watch Series 8 ti aiuta a ingannare la morte, in senso...

    The Apple Watch Series 8 is positioned as a safety-focused, 'guardian angel' device, featuring new car crash detection powered by a high-g accelerometer and a temperature sensor for advanced cycle tracking. These additions emphasize Apple's commitment to personal health, though the review notes the device is an iterative update—essentially a 'Series 7.5'—retaining the same chipset,...Read more

    (Translated)Show original
    T
    today.it
    27/09/2022
    Apple Watch 8: recensione, caratteristiche e prezzo

    The Apple Watch Series 8 offers a conservative evolution of its predecessor, retaining the 41mm/45mm design and 1,000-nit display while introducing a temperature sensor for cycle tracking and a high-g accelerometer for car crash detection. It serves as a premium option, yet it is positioned between the budget-friendly SE and the rugged Ultra, offering limited upgrades for users of...Read more

    (Translated)Show original
    T
    techprincess.it
    15/09/2022
    Apple Watch Series 8 review: taking care of women's bodies

    The TechPrincess.it review highlights the Apple Watch Series 8 as a significant advancement for women's wellness, specifically through new dual-sensor temperature tracking for ovulation and period prediction. While offering powerful performance and essential safety features like Crash Detection, the device is characterized as an iterative update rather than a revolutionary one,...Read more

    (Translated)Show original
    T
    tg24.sky.it
    17/11/2022
    Apple Watch 2022 Series 8, recensione definitiva: tutto quello che c'è da sapere

    The Sky TG24 review characterizes the Apple Watch Series 8 as a refined, iterative update that maintains Apple's market leadership, featuring a 1,000-nit Always-On display, a new dual-sensor temperature tracking system for health insights, and a high-g accelerometer for Car Crash Detection. The review notes the design remains consistent with the Series 7, with improvements focused...Read more

    (Translated)Show original
    A
    andreagaleazzi.com
    15/09/2022
    Recensione Apple Watch 8 - Andrea Galeazzi

    Andrea Galeazzi describes the Apple Watch Series 8 as a continuity release, retaining the design and display of the Series 7 while introducing dual-temperature sensors for ovulation tracking and an improved accelerometer for crash detection. The device focuses on incremental upgrades, with the new sensors primarily aimed at health monitoring improvements. Key pros include superior...Read more

    (Translated)Show original
    S
    smartworld.it
    06/10/2022
    Recensione Apple Watch series 8: il migliore smartwatch per iPhone è ancora lui

    The Apple Watch Series 8 is characterized by SmartWorld as a refined, iterative update, boasting a familiar premium design with a large, bright Always-On Retina display. Key features include new temperature sensors for advanced cycle tracking and a high-g accelerometer for crash detection. On the positive side, the device delivers a superior user experience with watchOS 9, including...Read more

    (Translated)Show original
    I
    iphoneitalia.com
    20/09/2022
    Apple Watch Series 8 review

    The iPhoneItalia review describes the Apple Watch Series 8 as a minor "Series 7s" update, maintaining an identical design, 41mm/45mm sizing, and IP6X/WR50 durability. Key new features focus on safety and health, specifically the addition of Crash Detection for car accidents and a dual-sensor temperature system designed for retrospective ovulation tracking. While the device retains a...Read more

    (Translated)Show original
    C
    consumentenbond.nl
    19/09/2022
    Apple Watch Series 8 GPS | Review - Consumentenbond

    The Apple Watch Series 8 GPS is described as a high-quality but iterative update that maintains Apple's position as a market leader in the smartwatch category, introducing key health and safety innovations like a skin temperature sensor and car crash detection. While maintaining the same design as the Series 7, the device is considered the most balanced 'Goldilocks' option for...Read more

    (Translated)Show original
    N
    notebookcheck.nl
    22/12/2022
    Apple Watch Series 8 langetermijntest - NotebookCheck

    The Apple Watch Series 8 is characterized as a minor, iterative update to the Series 7, maintaining the same design and OLED display while introducing a temperature sensor for health tracking and an improved accelerometer for crash detection. Key benefits include precise menstrual cycle tracking,, improved safety features, and a high-quality display, though it is limited by an S8...Read more

    (Translated)Show original
    I
    iculture.nl
    23/09/2022
    Apple Watch Series 8 review: de kleinste upgrade ooit?

    The Apple Watch Series 8 is a high-quality but iterative update maintaining Apple's market lead, offering the same design as the Series 7 but adding crucial internal hardware like a dual-sensor skin temperature tracker for ovulation tracking and improved car crash detection. Pros highlighted include the robust watchOS app ecosystem, highly accurate health sensors, and a bright...Read more

    (Translated)Show original
    G
    global.techradar.com
    27/09/2022
    Apple Watch 8 review - TechRadar

    The Apple Watch Series 8 is identified as a top-tier, albeit highly incremental, update to the Series 7, featuring the same design and display while adding crucial safety tools. Key enhancements include a skin temperature sensor for advanced health tracking and a new car crash detection feature, providing significant value for safety-conscious users. However, the review highlights...Read more

    (Translated)Show original
    H
    hardloopzone.nl
    01/09/2022
    Apple Watch 8 Review - Hardloopzone.nl

    The Hardloopzone.nl review of the Apple Watch 8 highlights that, while retaining the same design as its predecessor, the device brings significant software advancements in watchOS 9, including advanced running metrics and, for the first time, in-house, on-the-wrist running power measurements. Pros include a new multi-sport mode for triathletes, improved heart rate accuracy, and...Read more

    (Translated)Show original
    T
    tweakers.net
    27/10/2022
    Apple Watch Series 8 en Ultra Review - Tweakers

    The Tweakers review characterizes the Apple Watch Series 8 as a minor, iterative update to the Series 7, maintaining an identical design and 18-hour battery life. Key additions include a high-g accelerometer for crash detection and a dual-sensor temperature system, though the review notes the lack of significant innovation for recent model owners. Pros include highly accurate...Read more

    (Translated)Show original

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