Apple Watch Series 2 Review | 126 Data compared

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  • Avg. price: ~£390
  • Screen size: ?
  • Battery life: 0.88 day/s
  • Display type: OLED

Apple Watch Series 2 review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

6.1

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%

5.9

Technical Score

10.0%

7.2

User score

Good
5.9

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%

3.4

Health

21.0%

8.9

Fitness

16.0%

3.4

Battery

14.0%

7.8

Smart features

12.0%

6.4

Connectivity

9.0%

6.9

Display & Design

4.0%

5.5

Hardware

Good
7.2

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%

7.8

User reviews

30.0%

5.8

Popularity

User score:
United Kingdom
amazon
3.9
(181)
amazon
4.3
(7)

(Reviews last updated: April 2026)

Very good
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    Best prices in UK

    Best rankings

    ?

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

    Verdict

    The Apple Watch Series 2 is a performance-focused wearable featuring an S2 dual-core processor, a built-in GPS/GLONASS system for phone-free tracking, and a second-generation OLED Retina display that reaches 1,000 nits of brightness. Distinguished by its 50-metre water resistance and specialized swimming workout modes, the device includes a unique speaker system that ejects water via sound pulses. Its primary advantages are its robust fitness tracking capabilities, the high-visibility screen for outdoor use, and reliable 18-hour battery life for standard daily activities. However, key drawbacks include the lack of an always-on display, relatively slow charging times, and the absence of modern health sensors like ECG or blood oxygen monitoring found in later models.

    Technical Specifications of smartwatch Apple Watch Series 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%

    3.4

    Health

    21.0%

    8.9

    Fitness

    16.0%

    3.4

    Battery

    14.0%

    7.8

    Smart features

    12.0%

    6.4

    Connectivity

    9.0%

    6.9

    Display & Design

    4.0%

    5.5

    Hardware

    5.9
    Apple Watch Series 2 has a technical score of 5.94 points, which is lower than 56.6% 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%

    7.8

    User reviews

    30.0%

    5.8

    Popularity

    User score:
    United Kingdom
    amazon
    3.9
    (181)
    amazon
    4.3
    (7)

    (Reviews last updated: April 2026)

    7.2
    Apple Watch Series 2 has a user score of 7.21 points, which is lower than 81.5% 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.
    5.8
    Apple Watch Series 2 has a popularity of 5.8 points, which is lower than 58.3% of products in this category.
    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%

    6.1

    Overall score

    40.0%

    8.5

    Price

    6.8
    Apple Watch Series 2 has a quality-to-price ratio of 6.8 points, which is lower than 74.5% of products in this category.
    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 2 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

    no
    Apple Watch Series 2 does not support 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

    no
    Apple Watch Series 2 does not support 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 2 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 2 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

    no
    Apple Watch Series 2 does not include 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 2 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 2 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 2 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 2 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

    6 h
    Apple Watch Series 2 lasts 6 h in training mode which is shorter than 83.8% of smartwatches and equal to that of 6% 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

    5 h
    Apple Watch Series 2 lasts 5 h with GPS on which is shorter than 91% of smartwatches and equal to that of 2.8% 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

    273 mAh
    Apple Watch Series 2 has a battery capacity of 273 mAh which is smaller than the batteries in 63.8% of smartwatches and equal to those in 0.6% 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

    120 min
    Apple Watch Series 2 charges in 120 min which is faster than 12.9% of smartwatches and equal to the charge time of 43.4% of smartwatches.
    Normalized from hour-based sources to 120 minutes.
    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 2 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 (3.0).
    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

    ended
    Apple Watch Series 2 has ended software update support which is less active than that of 42.6% of smartwatches and equal to that of 57.5% of smartwatches.
    Software support appears ended or discontinued.
    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 2 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 2 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 2 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

    no
    Apple Watch Series 2 does not include a cellular module. 17.2% of smartwatches include a cellular module.
    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

    ?
    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 2 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 2 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 2 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 2 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

    272 x 340
    Apple Watch Series 2 has a display resolution of 272x340 which is lower than that of 64.7% of smartwatches and equal to that of 0.2% 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

    326 ppi
    Apple Watch Series 2 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

    1,000 nits
    Apple Watch Series 2 reaches 1,000 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 0.78 GHz
    Apple Watch Series 2 uses a CPU configuration of 2x0.78 GHz which is faster than that in 67.2% of smartwatches 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 S2
    Apple Watch Series 2 uses the Apple S2 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

    0.5 GB
    Apple Watch Series 2 has 0.5 GB of RAM which is smaller than the RAM in 72.6% of smartwatches and equal to that of 19.2% 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

    8 GB
    Apple Watch Series 2 uses 8 GB for internal storage which is larger than that of 67.6% of smartwatches and equal to that of 12.1% 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 2 does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Apple Watch Series 2 vs the average smartwatch

    • More advanced operating system
      Apple Watch Series 2 runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
      OS detail: watchOS (3.0).
      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 2 runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).watchOS vs Proprietary OS
    • Includes wireless charging
      Apple Watch Series 2 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 2 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • Has NFC
      Apple Watch Series 2 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 2 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Has HRV tracking
      Apple Watch Series 2 supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
      What it is: Measurement of heart-rate variability, the change in timing between heartbeats.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: MEDIUM

      Apple Watch Series 2 supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Supports Emergency SOS
      Apple Watch Series 2 includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
      What it is: An emergency feature that can contact help or alert trusted people from the watch.
      When it matters: When you want extra help in an emergency.

      Importance: HIGH

      Apple Watch Series 2 includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Has irregular heart alerts
      Apple Watch Series 2 supports irregular heart rate warnings, the average smartwatch does not. 43.7% of smartwatches support 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

      Apple Watch Series 2 supports irregular heart rate warnings, the average smartwatch does not. 43.7% of smartwatches support irregular heart rate warnings.
    • Supports third-party apps
      Apple Watch Series 2 supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
      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

      Apple Watch Series 2 supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • Has compass
      Apple Watch Series 2 includes a compass, the average smartwatch does not. 49.3% of smartwatches include a 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

      Apple Watch Series 2 includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Has HRV tracking
      Apple Watch Series 2 supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Has irregular heart alerts
      Apple Watch Series 2 supports irregular heart rate warnings, the average smartwatch does not. 43.7% of smartwatches support irregular heart rate warnings.
    • Has cadence sensor
      Apple Watch Series 2 includes a cadence sensor, the average smartwatch does not. 20.1% of smartwatches include a cadence sensor.
    • Has external HR monitor
      Apple Watch Series 2 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 2 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • Has NFC
      Apple Watch Series 2 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Has compass
      Apple Watch Series 2 includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Supports Wi-Fi
      Apple Watch Series 2 supports Wi-Fi, the average smartwatch does not. 43.4% of smartwatches support Wi-Fi.
    • Supports Galileo
      Apple Watch Series 2 supports Galileo navigation, the average smartwatch does not. 38.7% of smartwatches support Galileo navigation.
    • 400 nits higher display brightness
      Apple Watch Series 2 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 2 uses aluminum, stainless steel, ceramic for the case material, while the average smartwatch uses polycarbonate.
    • Better band material
      Apple Watch Series 2 uses silicone, leather, nylon, stainless steel for the band material, while the average smartwatch uses silicone.
    • 8.7 mm narrower watch width
      Apple Watch Series 2 is narrower than the average smartwatch (33.3 mm vs 42.0 mm). The average smartwatch width is 42.0 mm.
    • More advanced operating system
      Apple Watch Series 2 runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
    • Supports Emergency SOS
      Apple Watch Series 2 includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Supports third-party apps
      Apple Watch Series 2 supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • More advanced processor model
      Apple Watch Series 2 uses the Apple S2 processor model, while the average smartwatch uses Snapdragon 400.
    • Faster CPU speed
      Apple Watch Series 2 uses a CPU configuration of 2x0.78 GHz, while the average smartwatch uses 1 GHz.
    • 4 GB more storage
      Apple Watch Series 2 offers more internal storage than the average smartwatch (8 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
    • No blood oxygen
      Apple Watch Series 2 does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • No stress monitoring
      Apple Watch Series 2 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.
    • No sleep tracking
      Apple Watch Series 2 does not support sleep tracking, the average smartwatch does. 94% of smartwatches support sleep tracking.
    • No inactivity alerts
      Apple Watch Series 2 does not support inactivity alerts, the average smartwatch does. 85.7% of smartwatches support inactivity alerts.
    • 5,534 m lower max altitude
      Apple Watch Series 2 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 2 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.
    • 15 h shorter GPS battery life
      Apple Watch Series 2 lasts less with GPS on than the average smartwatch (5 h vs 20 h). The average smartwatch lasts 20 h.
    • 14 h shorter training battery life
      Apple Watch Series 2 lasts less in training mode than the average smartwatch (6 h vs 20 h). The average smartwatch lasts 20 h.
    • 27 mAh smaller battery capacity
      Apple Watch Series 2 has a smaller battery capacity than the average smartwatch (273 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 2 is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
      Android support may be limited without iPhone pairing on some models.
    • Older Bluetooth version
      Apple Watch Series 2 supports an older Bluetooth version than the average smartwatch (4 vs 5.0). The average smartwatch uses 5.0.
    • Lower IP rating
      Apple Watch Series 2 has a lower IP rating than the average smartwatch (IPX8 vs IP68).
      50 m water resistance.
    • No always-on display
      Apple Watch Series 2 does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
    • Basic display type
      Apple Watch Series 2 uses OLED display technology, while the average smartwatch features AMOLED.
      Retina branding. LTPO panel wording.
    • Lower resolution
      Apple Watch Series 2 has a display resolution of 272x340, while the average smartwatch reaches 352x430.
    • No smart alarm
      Apple Watch Series 2 does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
    • 0.5 GB less RAM
      Apple Watch Series 2 has less RAM than the average smartwatch (0.5 GB vs 1 GB). The average smartwatch includes 1 GB of RAM.
    • 5 year/s older release date
      Apple Watch Series 2 is an older model than the average smartwatch (2016 vs 2021). The average smartwatch was released in 2021.
      September 2016
    • No blood oxygen
      Apple Watch Series 2 does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support 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

      Apple Watch Series 2 does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • Lower IP rating
      Apple Watch Series 2 has a lower IP rating than the average smartwatch (IPX8 vs IP68).
      50 m water resistance.
      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 2 has a lower IP rating than the average smartwatch (IPX8 vs IP68).IPX8 vs IP68
    • No always-on display
      Apple Watch Series 2 does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
      What it is: A display mode that keeps key information visible even when the watch is idle.
      When it matters: When you want the screen to be easy to read at a glance.

      Importance: HIGH

      Apple Watch Series 2 does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
    • No stress monitoring
      Apple Watch Series 2 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 2 does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
    • No sleep tracking
      Apple Watch Series 2 does not support sleep tracking, the average smartwatch does. 94% of smartwatches support sleep tracking.
      What it is: Automatic recording of sleep duration, stages, or sleep quality from overnight wear.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Apple Watch Series 2 does not support sleep tracking, the average smartwatch does. 94% of smartwatches support sleep tracking.
    • 6.12 day/s shorter battery life
      Apple Watch Series 2 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 2 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 2 is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
      Android support may be limited without iPhone pairing on some models.
      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 2 is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • 15 h shorter GPS battery life
      Apple Watch Series 2 lasts less with GPS on than the average smartwatch (5 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 2 lasts less with GPS on than the average smartwatch (5 h vs 20 h). The average smartwatch lasts 20 h.5 h vs 20 h

    Graphic comparison of Apple Watch Series 2 and other Smartwatches

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    Third-party reviews

    (Reviews last updated: April 2026)

    What customers like about Apple Watch Series 2?

    • Integrated GPS allows for outdoor activity tracking without needing a tethered iPhone.
    • Water-resistant up to 50 meters, enabling swim tracking in both pools and open water.
    • Significantly brighter display (1,000 nits) makes the screen much easier to read in direct sunlight.
    • Faster dual-core S2 processor improves overall responsiveness and reduces app load times compared to the original model.
    • Innovative 'water lock' and ejection feature uses sound vibrations to clear moisture from the speaker.
    • Comprehensive fitness ecosystem with accurate heart rate monitoring and diverse workout modes.

    What customers dislike about Apple Watch Series 2?

    • Battery life remains largely unchanged from the original, typically requiring daily charging.
    • Significant battery drain occurs when using GPS tracking during long workouts.
    • Lack of an always-on display requires a wrist-raise gesture to view the time or notifications.
    • No integrated native sleep tracking software included at launch.
    • The device is slightly thicker and heavier than its predecessor to accommodate the new internals.
    • High price point compared to dedicated fitness trackers or competing smartwatches.

    Expert reviews

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    irishtimes.com
    19/10/2016
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    stuff.tv
    21/09/2016
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    hodinkee.com
    14/10/2016
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    t3.com
    12/11/2018
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    expertreviews.co.uk
    06/07/2018
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    techradar.com
    03/06/2019
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    U
    uk.pcmag.com
    30/11/2016
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    mashable.com
    14/09/2016
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    cnet.com
    14/09/2016
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    theverge.com
    14/09/2016
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    trustedreviews.com
    12/02/2018
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    wareable.com
    11/09/2017
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    wired.com
    28/11/2016
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    huffingtonpost.co.uk
    28/09/2016
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    uk.pcmag.com
    21/09/2016
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    9
    9to5mac.com
    19/09/2016
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    C
    chip.de
    29/09/2016
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    games.ch
    01/10/2016
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    C
    chip.de
    29/09/2016
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    C
    computerbase.de
    23/09/2016
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    computerbild.de
    16/09/2016
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    stern.de
    15/09/2016
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    spiegel.de
    14/09/2016
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    larsbobach.de
    18/02/2017
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    M
    mac4ever.com
    20/10/2016
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    watchgeneration.fr
    27/09/2016
    Summary of the review
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    numerama.com
    12/10/2016
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    lesnumeriques.com
    30/09/2016
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    trentejours.com
    18/09/2016
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    ici.radio-canada.ca
    23/09/2016
    Summary of the review
    R
    revista-gadget.es
    No disponible
    Summary of the review
    A
    applesfera.com
    19/10/2016
    Summary of the review
    E
    elconfidencial.com
    11/10/2016
    Summary of the review
    A
    applesfera.com
    30/01/2017
    Summary of the review
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    xataka.com
    30/09/2016
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    tomshw.it
    19/09/2016
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    P
    panorama.it
    20/01/2017
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    I
    iphoneitalia.com
    25/09/2016
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    tech.everyeye.it
    25/10/2016
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    M
    multiplayer.it
    24/10/2016
    Summary of the review
    A
    andreagaleazzi.com
    08/10/2016
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    T
    tweakers.net
    02/01/2017
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    T
    techzine.nl
    07/11/2016
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    I
    id.nl
    29/09/2016
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    N
    nl.ign.com
    04/10/2016
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    I
    iphoned.nl
    30/09/2016
    Summary of the review
    I
    iculture.nl
    08/11/2016
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    Video reviews

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