Samsung Gear S2 Review | 126 Data compared

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  • Avg. price in UK: ~£310
  • Avg. price in US: ~$300
  • Screen size: 1.20 inch
  • Battery life: 2 day/s
  • Display type: AMOLED

Samsung Gear S2 review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

6.7

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%

6.5

Technical Score

10.0%

8.6

User score

Good
6.5

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%

4.2

Health

21.0%

8.4

Fitness

16.0%

5.2

Battery

14.0%

8.1

Smart features

12.0%

7.1

Connectivity

9.0%

7.3

Display & Design

4.0%

5.2

Hardware

Good
8.6

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%

8.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.0
(181)
amazon
4.0
(153)
amazon
4.0
(51)
amazon
3.6
(11)
amazon
3.7
(9)
United States
Amazon_logo.png
4.1
(193)
Amazon_logo.png
3.9
(157)
Amazon_logo.png
4.0
(105)
Amazon_logo.png
4.0
(60)

(Reviews last updated: April 2026)

Excellent
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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 Samsung Gear S2 is a Tizen-based smartwatch featuring a circular 1.2-inch Super AMOLED display with a resolution of 360 x 360 (302 ppi) and a signature rotating bezel for tactile UI navigation. Internally, it is powered by a 1.0 GHz dual-core Exynos processor, 512MB of RAM, and 4GB of storage, while maintaining durability with an IP68 water-resistance rating and Gorilla Glass 3 protection. Key strengths include its intuitive rotating bezel, high-quality display, and compatibility with most Android devices (v4.4+); however, it is frequently criticized for a limited third-party app ecosystem, weak voice recognition performance, and the use of proprietary watch bands on the standard model.

    Technical Specifications of smartwatch Samsung Gear S2

    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%

    4.2

    Health

    21.0%

    8.4

    Fitness

    16.0%

    5.2

    Battery

    14.0%

    8.1

    Smart features

    12.0%

    7.1

    Connectivity

    9.0%

    7.3

    Display & Design

    4.0%

    5.2

    Hardware

    6.5
    Samsung Gear S2 has a technical score of 6.46 points, which is higher than 59% 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%

    8.0

    User reviews

    30.0%

    10

    Popularity

    User score:
    United Kingdom
    amazon
    4.0
    (181)
    amazon
    4.0
    (153)
    amazon
    4.0
    (51)
    amazon
    3.6
    (11)
    amazon
    3.7
    (9)
    United States
    Amazon_logo.png
    4.1
    (193)
    Amazon_logo.png
    3.9
    (157)
    Amazon_logo.png
    4.0
    (105)
    Amazon_logo.png
    4.0
    (60)

    (Reviews last updated: April 2026)

    8.6
    Samsung Gear S2 has a user score of 8.59 points, which is higher than 61% 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
    Samsung Gear S2 has a popularity of 10 points, which is higher than 52.6% 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%

    6.7

    Overall score

    40.0%

    8.9

    Price

    7.3
    Samsung Gear S2 has a quality-to-price ratio of 7.3 points, which is higher than 47.7% 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

    Samsung
    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
    Samsung Gear S2 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
    Samsung Gear S2 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
    Samsung Gear S2 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

    no
    Samsung Gear S2 does not support 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
    Samsung Gear S2 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
    Samsung Gear S2 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
    Samsung Gear S2 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

    no
    Samsung Gear S2 does not include a cadence sensor. 20.1% of smartwatches include a cadence sensor.
    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
    Samsung Gear S2 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

    2 day/s
    Samsung Gear S2 offers a battery life of 2 day/s which is shorter than that of 79.8% of smartwatches and equal to that of 4.6% of smartwatches.
    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

    40 h
    Samsung Gear S2 lasts 40 h in training mode which is longer than 83.8% of smartwatches and equal to that of 1.4% 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

    N/A
    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

    275 mAh
    Samsung Gear S2 has a battery capacity of 275 mAh which is smaller than the batteries in 62.7% of smartwatches and equal to those in 0.9% 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
    Samsung Gear S2 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 2 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

    Tizen
    Samsung Gear S2 runs Tizen which is more advanced than the operating system in 55.1% of smartwatches and the same as that in 2.3% 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

    ?
    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
    Samsung Gear S2 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
    Samsung Gear S2 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
    Samsung Gear S2 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
    Samsung Gear S2 includes 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

    no
    Samsung Gear S2 does not support 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

    no
    Samsung Gear S2 does not support 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
    Samsung Gear S2 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

    1.20 inch
    Samsung Gear S2 has a screen size of 1.20 inch which is smaller than the screens of 85.5% of smartwatches and equal to those of 7.8% of smartwatches.
    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

    AMOLED
    Samsung Gear S2 uses a AMOLED display type which is more advanced than that of 48.8% of smartwatches and the same as that of 51.3% of smartwatches.
    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

    360 x 360
    Samsung Gear S2 has a display resolution of 360x360 which is higher than that of 50.2% of smartwatches and equal to that of 6.7% 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

    424 ppi
    Samsung Gear S2 has a pixel density of 424 ppi which is higher than that of 72.4% of smartwatches and equal to that of 0.6% 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

    ?
    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

    ?
    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

    Snapdragon 400
    Samsung Gear S2 uses the Snapdragon 400 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
    Samsung Gear S2 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

    4 GB
    Samsung Gear S2 uses 4 GB for internal storage which is larger than that of 40.5% of smartwatches and equal to that of 26.9% 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
    Samsung Gear S2 does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Samsung Gear S2 vs the average smartwatch

    • Has cellular module
      Samsung Gear S2 includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a 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

      Samsung Gear S2 includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
    • Includes wireless charging
      Samsung Gear S2 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

      Samsung Gear S2 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • Has NFC
      Samsung Gear S2 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

      Samsung Gear S2 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Supports Emergency SOS
      Samsung Gear S2 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

      Samsung Gear S2 includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Includes maps
      Samsung Gear S2 supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
      What it is: The ability to view maps, navigation guidance, or route layouts on the watch.
      When it matters: When you run, ride, hike, or navigate without relying on your phone.

      Importance: MEDIUM

      Samsung Gear S2 supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
    • Has barometer
      Samsung Gear S2 includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a 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

      Samsung Gear S2 includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Supports third-party apps
      Samsung Gear S2 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

      Samsung Gear S2 supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • Stronger display glass
      Samsung Gear S2 uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.
      What it is: The glass material or protective cover used over the display.
      When it matters: When you want the screen to be easy to read at a glance.

      Importance: MEDIUM

      Good value: Sapphire or Gorilla Glass

      Samsung Gear S2 uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.Corning Gorilla Glass 3 vs mineral glass
    • Supports calorie tracking
      Samsung Gear S2 supports calorie tracking, the average smartwatch does not. 43.8% of smartwatches support calorie tracking.
    • Has weight tracking
      Samsung Gear S2 supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Supports water intake tracking
      Samsung Gear S2 tracks water intake, the average smartwatch does not. 48.2% of smartwatches track water intake.
    • Has barometer
      Samsung Gear S2 includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Has external HR monitor
      Samsung Gear S2 supports external heart rate monitor compatibility, the average smartwatch does not. 41.3% of smartwatches support external heart rate monitor compatibility.
    • Includes wireless charging
      Samsung Gear S2 supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 20 h longer training battery life
      Samsung Gear S2 lasts longer in training mode than the average smartwatch (40 h vs 20 h). The average smartwatch lasts 20 h.
    • Has cellular module
      Samsung Gear S2 includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
    • Has NFC
      Samsung Gear S2 supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Includes maps
      Samsung Gear S2 supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
    • Has compass
      Samsung Gear S2 includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Supports Wi-Fi
      Samsung Gear S2 supports Wi-Fi, the average smartwatch does not. 43.4% of smartwatches support Wi-Fi.
    • Stronger display glass
      Samsung Gear S2 uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.
    • 98 ppi higher pixel density
      Samsung Gear S2 has a higher pixel density than the average smartwatch (424 ppi vs 326 ppi). The average smartwatch display reaches 326 ppi.
    • Better case material
      Samsung Gear S2 uses stainless steel for the case material, while the average smartwatch uses polycarbonate.
    • Better band material
      Samsung Gear S2 uses silicone, leather for the band material, while the average smartwatch uses silicone.
    • 2 mm narrower band
      Samsung Gear S2 has a narrower band width than the average smartwatch (20 mm vs 22.0 mm). The average smartwatch band is 22.0 mm wide.
    • Supports Emergency SOS
      Samsung Gear S2 includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Supports third-party apps
      Samsung Gear S2 supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • More advanced operating system
      Samsung Gear S2 runs a more advanced operating system than the average smartwatch (Tizen vs Proprietary OS).
    • No blood oxygen
      Samsung Gear S2 does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • No stress monitoring
      Samsung Gear S2 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 cycle tracking
      Samsung Gear S2 does not support menstrual cycle tracking, the average smartwatch does. 64.6% of smartwatches support menstrual cycle tracking.
    • No swim mode
      Samsung Gear S2 does not include a swim sport mode, the average smartwatch does. 74.9% of smartwatches include a swim sport mode.
    • 73 fewer exercise profiles
      Samsung Gear S2 supports fewer exercise modes than the average smartwatch (7 vs 80). The average smartwatch supports 80 exercise modes.
    • 5 day/s shorter battery life
      Samsung Gear S2 offers 2 day/s of battery life, while the average smartwatch offers 7 day/s.
    • 25 mAh smaller battery capacity
      Samsung Gear S2 has a smaller battery capacity than the average smartwatch (275 mAh vs 300 mAh). The average smartwatch battery is 300 mAh.
      Battery capacity varies by case size/model variant.
    • No GPS
      Samsung Gear S2 does not support GPS, the average smartwatch does. 56.1% of smartwatches support GPS.
    • Older Bluetooth version
      Samsung Gear S2 supports an older Bluetooth version than the average smartwatch (4.1 vs 5.0). The average smartwatch uses 5.0.
    • 48.5 m lower waterproof depth
      Samsung Gear S2 has a shallower waterproof rating than the average smartwatch (1.5 m vs 50 m). The average smartwatch reaches 50 m.
      Based on IP immersion rating (controlled lab conditions, not a swim/diving certification).
    • 0.2 inch smaller screen size
      Samsung Gear S2 has a smaller screen size than the average smartwatch (1.2 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
    • No smart alarm
      Samsung Gear S2 does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
    • 0.5 GB less RAM
      Samsung Gear S2 has less RAM than the average smartwatch (0.5 GB vs 1 GB). The average smartwatch includes 1 GB of RAM.
    • 6 year/s older release date
      Samsung Gear S2 is an older model than the average smartwatch (2015 vs 2021). The average smartwatch was released in 2021.
      October 2015
    • No GPS
      Samsung Gear S2 does not support GPS, the average smartwatch does. 56.1% of smartwatches 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

      Samsung Gear S2 does not support GPS, the average smartwatch does. 56.1% of smartwatches support GPS.
    • No blood oxygen
      Samsung Gear S2 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

      Samsung Gear S2 does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • 48.5 m lower waterproof depth
      Samsung Gear S2 has a shallower waterproof rating than the average smartwatch (1.5 m vs 50 m). The average smartwatch reaches 50 m.
      Based on IP immersion rating (controlled lab conditions, not a swim/diving certification).
      What it is: The stated depth or water-resistance class the watch is rated to withstand.
      When it matters: When you wear the watch in rain, sweat, or water.

      Importance: HIGH

      Good value: >=50 m

      Samsung Gear S2 has a shallower waterproof rating than the average smartwatch (1.5 m vs 50 m). The average smartwatch reaches 50 m.1.5 m vs 50 m
    • No stress monitoring
      Samsung Gear S2 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

      Samsung Gear S2 does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
    • 0.2 inch smaller screen size
      Samsung Gear S2 has a smaller screen size than the average smartwatch (1.2 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
      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

      Samsung Gear S2 has a smaller screen size than the average smartwatch (1.2 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.1.20 inch vs 1.40 inch
    • No swim mode
      Samsung Gear S2 does not include a swim sport mode, the average smartwatch does. 74.9% of smartwatches include a swim sport mode.
      What it is: A dedicated workout mode tuned for pool or open-water swimming.
      When it matters: When you track workouts and want better training data.

      Importance: MEDIUM

      Samsung Gear S2 does not include a swim sport mode, the average smartwatch does. 74.9% of smartwatches include a swim sport mode.
    • 5 day/s shorter battery life
      Samsung Gear S2 offers 2 day/s of battery life, while the average smartwatch offers 7 day/s.
      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

      Samsung Gear S2 offers 2 day/s of battery life, while the average smartwatch offers 7 day/s.2 day/s vs 7 day/s
    • No smart alarm
      Samsung Gear S2 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

      Samsung Gear S2 does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.

    Graphic comparison of Samsung Gear S2 and other Smartwatches

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    Third-party reviews

    What customers like about Samsung Gear S2?

    • Innovative rotating bezel for intuitive and tactile navigation
    • Sharp and vibrant circular Super AMOLED display with excellent contrast
    • Comfortable, lightweight design that looks like a traditional watch
    • Decent battery life, often lasting 1.5 to 2 days on a single charge
    • Compatibility with most modern Android smartphones beyond just Samsung devices
    • Solid health and fitness tracking features through S Health

    What customers dislike about Samsung Gear S2?

    • Limited selection of third-party apps compared to Android Wear or watchOS
    • Lack of a built-in speaker for phone calls (except on the 3G model)
    • Finicky or slow voice recognition via S-Voice
    • Proprietary band mechanism on the standard model limits third-party strap options
    • The 1.2-inch screen can feel cramped for some users
    • Non-compatibility with iPhones at launch (though support was added later)

    Expert reviews

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    nextpit.com
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    starkinsider.com
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    irishtimes.com
    17/12/2015
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    androidauthority.com
    01/02/2016
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    pcmag.com
    09/10/2015
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    au.pcmag.com
    04/09/2015
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    expertreviews.co.uk
    15/06/2018
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    sammobile.com
    30/09/2015
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    digitaltrends.com
    23/08/2019
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    phonearena.com
    19/10/2015
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    laptopmedia.com
    02/02/2016
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    15/12/2015
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    techguide.com.au
    17/11/2015
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    techradar.com
    02/12/2021
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    theguardian.com
    09/11/2015
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    au.pcmag.com
    10/10/2015
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    theverge.com
    13/10/2015
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    cnet.com
    19/10/2015
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    watson.ch
    23/11/2015
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    welt.de
    22/04/2016
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    mobile.fhstp.ac.at
    01/05/2016
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    chip.de
    11/11/2015
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    stern.de
    03/09/2015
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    futurezone.at
    23/11/2015
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    curved.de
    23/01/2023
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    computerbild.de
    09/02/2016
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    infonovice.fr
    06/11/2015
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    journaldugeek.com
    19/11/2015
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    geeksandcom.com
    15/10/2015
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    nextpit.fr
    30/10/2015
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    01net.com
    18/11/2015
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    lesnumeriques.com
    05/11/2015
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    F
    frandroid.com
    16/10/2015
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    E
    es.gizmodo.com
    03/09/2015
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    pisapapeles.net
    18/11/2015
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    xataka.com
    03/11/2015
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    E
    europapress.es
    26/10/2015
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    forbes.com.mx
    10/12/2015
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    C
    computerhoy.20minutos.es
    10/12/2015
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    Z
    zonamovilidad.es
    14/01/2016
    Summary of the review
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    laptopmedia.com
    02/02/2016
    Summary of the review
    A
    andreagaleazzi.com
    13/12/2015
    Summary of the review
    S
    smartworld.it
    11/11/2015
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    A
    androidplanet.nl
    11/11/2015
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    A
    androidplanet.nl
    30/10/2015
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    L
    laptopmedia.com
    02/02/2016
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    E
    elektrozine.be
    19/01/2016
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    I
    id.nl
    19/11/2015
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    T
    tweakers.net
    28/12/2015
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    Video reviews

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