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Xiaomi Watch S4 Sport Review | 126 Data compared

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  • Avg. price: ~£200
  • Screen size: 1.43 inch
  • Battery life: 15 day/s
  • Display type: AMOLED

Xiaomi Watch S4 Sport review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

8.6

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%

8.6

Technical Score

10.0%

?

User score

Excellent
8.6

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%

7.7

Health

21.0%

9.3

Fitness

16.0%

8.5

Battery

14.0%

8.6

Smart features

12.0%

8.9

Connectivity

9.0%

8.9

Display & Design

4.0%

8.7

Hardware

Excellent
?

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%

?

User reviews

30.0%

?

Popularity

    • No image
    No image

    Best prices

      N/A~ £200

    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 Xiaomi Watch S4 Sport

    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%

    ?

    Health

    21.0%

    ?

    Fitness

    16.0%

    ?

    Battery

    14.0%

    ?

    Smart features

    12.0%

    ?

    Connectivity

    9.0%

    ?

    Display & Design

    4.0%

    ?

    Hardware

    8.6
    Xiaomi Watch S4 Sport has a technical score of 8.57 points, which is higher than 97.7% 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%

    0.0

    User reviews

    30.0%

    1.0

    Popularity

    ?
    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.
    1.0
    Xiaomi Watch S4 Sport has a popularity of 1 points, which is lower than 57.9% 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%

    8.6

    Overall score

    40.0%

    9.5

    Price

    8.8
    Xiaomi Watch S4 Sport has a quality-to-price ratio of 8.8 points, which is higher than 98% 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

    Xiaomi
    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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport supports blood oxygen monitoring. 64.4% of smartwatches support blood oxygen monitoring.
    ECG
    What it is: The ability to record a single-lead electrocardiogram from the wrist.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    no
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport supports irregular heart rate warnings. 43.7% of smartwatches support irregular heart rate warnings.
    Supports abnormal high/low heart-rate alerts (typically after inactivity).
    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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport 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

    15 day/s
    Xiaomi Watch S4 Sport offers a battery life of 15 day/s which is longer than that of 86.3% of smartwatches and equal to that of 3.2% 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

    26 h
    Xiaomi Watch S4 Sport lasts 26 h in training mode which is longer than 65.2% of smartwatches and equal to that of 1.7% 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

    ?
    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

    453 mAh
    Xiaomi Watch S4 Sport has a battery capacity of 453 mAh which is larger than the batteries in 85.4% of smartwatches and equal to those in 0.3% of smartwatches.
    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

    ?
    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

    HyperOS
    Xiaomi Watch S4 Sport runs HyperOS which is more advanced than the operating system in 58.7% of smartwatches and the same as that in 1.3% 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

    occasional
    Xiaomi Watch S4 Sport has occasional software update support which is more active than that of 57.6% of smartwatches and equal to that of 36.2% of smartwatches.
    Updates are typically released about every 3 months.
    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

    no
    Xiaomi Watch S4 Sport does not support 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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport 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

    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
    Xiaomi Watch S4 Sport 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

    no
    Xiaomi Watch S4 Sport does not support Galileo navigation. 38.7% of smartwatches support Galileo navigation.
    Supports other GNSS systems, but Galileo is not listed.
    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
    Xiaomi Watch S4 Sport 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

    1.43 inch
    Xiaomi Watch S4 Sport has a screen size of 1.43 inch which is larger than the screens of 56.8% of smartwatches and equal to those of 8.1% 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
    Xiaomi Watch S4 Sport 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

    466 x 466
    Xiaomi Watch S4 Sport has a display resolution of 466 x 466 which is higher than that of 87.4% of smartwatches and equal to that of 10.9% 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

    461 ppi
    Xiaomi Watch S4 Sport has a pixel density of 461 ppi which is higher than that of 84.7% of smartwatches and equal to that of 6.4% 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

    2,200 nits
    Xiaomi Watch S4 Sport reaches 2200 nits nits of display brightness, which is higher than that of 95% of smartwatches and equal to that of 0.9% 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

    ?
    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

    ?
    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

    ?
    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
    Xiaomi Watch S4 Sport 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
    Xiaomi Watch S4 Sport does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Xiaomi Watch S4 Sport vs the average smartwatch

    • Has cellular module
      Xiaomi Watch S4 Sport 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

      Xiaomi Watch S4 Sport includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
    • 1,600 nits higher display brightness
      Xiaomi Watch S4 Sport has higher display brightness than the average smartwatch (2,200 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.
      What it is: The peak brightness the display can reach, usually expressed in nits.
      When it matters: When you want the screen to stay readable outdoors and in strong sunlight.

      Importance: HIGH

      Good value: >=1000 nits

      Xiaomi Watch S4 Sport has higher display brightness than the average smartwatch (2,200 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.2,200 nits vs 600 nits
    • Stronger display glass
      Xiaomi Watch S4 Sport uses sapphire 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

      Xiaomi Watch S4 Sport uses sapphire display glass, while the average smartwatch uses mineral glass.sapphire vs mineral glass
    • Includes fall detection
      Xiaomi Watch S4 Sport supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
      mode-limited 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

      Xiaomi Watch S4 Sport supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • 8 day/s longer battery life
      Xiaomi Watch S4 Sport offers 15 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

      Xiaomi Watch S4 Sport offers 15 day/s of battery life, while the average smartwatch offers 7 day/s.15 day/s vs 7 day/s
    • Includes wireless charging
      Xiaomi Watch S4 Sport 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

      Xiaomi Watch S4 Sport supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 28 GB more storage
      Xiaomi Watch S4 Sport 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

      Xiaomi Watch S4 Sport 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
      Xiaomi Watch S4 Sport supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
      NFC hardware is present, but functionality may be limited by region/app support.
      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

      Xiaomi Watch S4 Sport supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Has temperature sensor
      Xiaomi Watch S4 Sport includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
    • Has HRV tracking
      Xiaomi Watch S4 Sport supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Supports VO2 max
      Xiaomi Watch S4 Sport measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Has irregular heart alerts
      Xiaomi Watch S4 Sport supports irregular heart rate warnings, the average smartwatch does not. 43.7% of smartwatches support irregular heart rate warnings.
    • Supports calorie tracking
      Xiaomi Watch S4 Sport supports calorie tracking, the average smartwatch does not. 43.8% of smartwatches support calorie tracking.
    • Has weight tracking
      Xiaomi Watch S4 Sport supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Supports water intake tracking
      Xiaomi Watch S4 Sport tracks water intake, the average smartwatch does not. 48.2% of smartwatches track water intake.
    • Has multi-sport mode
      Xiaomi Watch S4 Sport includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
    • Has barometer
      Xiaomi Watch S4 Sport includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • 70 more exercise profiles
      Xiaomi Watch S4 Sport supports more exercise modes than the average smartwatch (150 vs 80). The average smartwatch supports 80 exercise modes.
    • 8 day/s longer battery life
      Xiaomi Watch S4 Sport offers 15 day/s of battery life, while the average smartwatch offers 7 day/s.
    • Includes wireless charging
      Xiaomi Watch S4 Sport supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 153 mAh larger battery capacity
      Xiaomi Watch S4 Sport has a larger battery capacity than the average smartwatch (453 mAh vs 300 mAh). The average smartwatch battery is 300 mAh.
    • 6 h longer training battery life
      Xiaomi Watch S4 Sport lasts longer in training mode than the average smartwatch (26 h vs 20 h). The average smartwatch lasts 20 h.
    • Has cellular module
      Xiaomi Watch S4 Sport includes a cellular module, the average smartwatch does not. 17.2% of smartwatches include a cellular module.
    • Has NFC
      Xiaomi Watch S4 Sport supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Includes maps
      Xiaomi Watch S4 Sport supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
    • Has compass
      Xiaomi Watch S4 Sport includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Supports Wi-Fi
      Xiaomi Watch S4 Sport supports Wi-Fi, the average smartwatch does not. 43.4% of smartwatches support Wi-Fi.
    • Newer Bluetooth version
      Xiaomi Watch S4 Sport supports a newer Bluetooth version than the average smartwatch (5.3 vs 5.0). The average smartwatch uses 5.0.
    • 1,600 nits higher display brightness
      Xiaomi Watch S4 Sport has higher display brightness than the average smartwatch (2,200 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.
    • Stronger display glass
      Xiaomi Watch S4 Sport uses sapphire display glass, while the average smartwatch uses mineral glass.
    • Has rugged design
      Xiaomi Watch S4 Sport has a rugged design, the average smartwatch does not. 34.5% of smartwatches have a rugged design.
    • Higher resolution
      Xiaomi Watch S4 Sport has a display resolution of 466x 466, while the average smartwatch reaches 352x 430.
    • 135 ppi higher pixel density
      Xiaomi Watch S4 Sport has a higher pixel density than the average smartwatch (461 ppi vs 326 ppi). The average smartwatch display reaches 326 ppi.
    • Better case material
      Xiaomi Watch S4 Sport uses titanium for the case material, while the average smartwatch uses polycarbonate.
    • Includes fall detection
      Xiaomi Watch S4 Sport supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • Supports Emergency SOS
      Xiaomi Watch S4 Sport includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • More advanced operating system
      Xiaomi Watch S4 Sport runs a more advanced operating system than the average smartwatch (HyperOS vs Proprietary OS).
    • More frequent updates
      Xiaomi Watch S4 Sport receives occasional software updates, while the average smartwatch receives ended updates.
    • 28 GB more storage
      Xiaomi Watch S4 Sport offers more internal storage than the average smartwatch (32 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
    • 3 year/s newer release date
      Xiaomi Watch S4 Sport has a newer release date than the average smartwatch (2024 vs 2021). The average smartwatch was released in 2021.

    Total
    Overall
    Health
    Fitness
    Battery
    Connectivity
    Display & Design
    Smart features
    Hardware
    • No coaching
      Xiaomi Watch S4 Sport does not support coaching, the average smartwatch does. 51.8% of smartwatches support coaching.
    • 1 mm thicker watch body
      Xiaomi Watch S4 Sport is thicker than the average smartwatch (12.6 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
      Some sources mention variant-dependent thickness values.
    • 4.9 mm wider watch width
      Xiaomi Watch S4 Sport is wider than the average smartwatch (46.9 mm vs 42.0 mm). The average smartwatch width is 42.0 mm.
    • No widgets
      Xiaomi Watch S4 Sport does not support widgets, the average smartwatch does. 83.1% of smartwatches support widgets.
    • No coaching
      Xiaomi Watch S4 Sport does not support coaching, the average smartwatch does. 51.8% of smartwatches support coaching.
      What it is: Guided training or wellness suggestions based on your data and habits.
      When it matters: When you track workouts and want better training data.

      Importance: LOW

      Xiaomi Watch S4 Sport does not support coaching, the average smartwatch does. 51.8% of smartwatches support coaching.
    • No widgets
      Xiaomi Watch S4 Sport does not support widgets, the average smartwatch does. 83.1% of smartwatches support widgets.
      What it is: Support for small glanceable panels that show live information or quick actions.
      When it matters: When you want quick everyday tools on your wrist.

      Importance: LOW

      Xiaomi Watch S4 Sport does not support widgets, the average smartwatch does. 83.1% of smartwatches support widgets.
    • 2.61x less popular
      Xiaomi Watch S4 Sport has a lower popularity than the average smartwatch (1.00 vs 2,609).
      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.
      Xiaomi Watch S4 Sport has a lower popularity than the average smartwatch (1.00 vs 2,609).1 vs 2.61
    • 1 mm thicker watch body
      Xiaomi Watch S4 Sport is thicker than the average smartwatch (12.6 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
      Some sources mention variant-dependent thickness values.
      What it is: The depth of the watch body from front to back.
      When it matters: When you wear the watch all day or sleep with it on.

      Importance: HIGH

      Good value: <=10.9 mm

      Xiaomi Watch S4 Sport is thicker than the average smartwatch (12.6 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.12.60 mm vs 11.60 mm
    • 4.9 mm wider watch width
      Xiaomi Watch S4 Sport is wider than the average smartwatch (46.9 mm vs 42.0 mm). The average smartwatch width is 42.0 mm.
      What it is: The horizontal dimension of the watch case.
      When it matters: When you wear the watch all day or sleep with it on.

      Importance: MEDIUM

      Good value: <=39 mm

      Xiaomi Watch S4 Sport is wider than the average smartwatch (46.9 mm vs 42.0 mm). The average smartwatch width is 42.0 mm.46.9 mm vs 42.0 mm
    • 53.9% more expensive
      Xiaomi Watch S4 Sport is more expensive than the average smartwatch (£200 vs £130).
      Xiaomi Watch S4 Sport is more expensive than the average smartwatch (£200 vs £130).£200 vs £130
    Total
    Overall
    Fitness
    Display & Design
    Smart features

    Graphic comparison of Xiaomi Watch S4 Sport and other Smartwatches

    Attribute category
    Attribute
    No results found

    Third-party reviews

    What customers like about Xiaomi Watch S4 Sport?

    • Premium design with high-quality materials like an aluminium alloy frame and PVD finish
    • Exceptionally bright AMOLED display (up to 2200 nits) that remains visible in direct sunlight
    • Unique interchangeable bezel system and standard 22mm lugs for extensive aesthetic customisation
    • Long-lasting battery life, typically ranging from 6 to 15 days depending on usage and AOD settings
    • Smooth and fluid user experience powered by Xiaomi's HyperOS
    • Satisfying and tactile rotating crown that significantly improves menu navigation

    What customers dislike about Xiaomi Watch S4 Sport?

    • Basic and non-interactable notifications that do not support emojis or direct replies
    • Limited smart ecosystem with no support for third-party apps like Spotify or WhatsApp
    • Inconsistent health tracking, particularly overzealous deep sleep detection and hit-or-miss exercise auto-detection
    • Restrictive NFC payment system that is only compatible with a limited number of banks and regions
    • 2-pin magnetic charging cable can be fiddly to align and lacks the convenience of standard wireless charging
    • Weak GNSS accuracy in dense urban environments due to the small antenna size in some models

    Expert reviews

    A
    alza.at
    13/04/2025
    Xiaomi Watch S4 (REVIEW): This is what an affordable smartwatch should look like

    The Xiaomi Watch S4 stands out for its premium design, featuring an aluminium frame with interchangeable bezels and a highly bright, 2,200-nit AMOLED display. It improves on previous models with a tactile rotating crown for intuitive navigation and offers impressive 15-day battery life. Key pros include this high-quality build and display, while notable cons involve limited smart...Read more

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    N
    nerdsheaven.de
    30. Oktober 2025
    Xiaomi Watch S4 – New smartwatch with modular bezel and precision sensors

    The Xiaomi Watch S4 is an affordable, customizable smartwatch featuring a unique, swappable bezel system and a vibrant 1.43-inch AMOLED display capable of 2200 nits peak brightness. It runs on the fluid HyperOS 2, featuring a 15-day battery life, fast charging, and robust 5ATM water resistance with a durable aluminum frame. Key, however, are its limitations in the ecosystem, lacking...Read more

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    B
    beyondpixels.de
    30/10/2025
    Xiaomi Watch S4 41 mm Review – A Pleasant Surprise

    The Beyond Pixels review praises the 41mm Xiaomi Watch S4 as a stylish, lightweight (32g) device featuring a 1.32-inch AMOLED display with 1,500 nits brightness. Key advantages include its elegant stainless steel design, comfortable wearability, intuitive rotating crown, and the ability to swap bezels for customization. Performance is highlighted by robust battery life lasting...Read more

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    H
    heise.de
    17/08/2025
    Xiaomi Watch S4 Review: This Affordable Sports Smartwatch is a Hidden Gem

    The Xiaomi Watch S4 is a budget-friendly, stylish smartwatch featuring a high-gloss aluminum frame and a bright, 2200-nit AMOLED display. It distinguishes itself with an interchangeable bezel system and a tactile rotating crown powered by HyperOS 2, while offering strong, 15-day battery life. Performance includes over 150 sports modes, a dual-LED PPG heart rate sensor, and...Read more

    (Translated)Show original
    C
    computerbild.de
    31/07/2025
    Xiaomi Watch S4 Review: Stylish Smartwatch with Strong Battery Life

    The Xiaomi Watch S4 features a 1.43-inch AMOLED display with 2,200 nits brightness and a unique interchangeable bezel system that swaps the physical frame and watch face. Key performance strengths include 15-day battery life, 5-minute fast charging for two days of use, and precise dual-frequency GPS. Limitations include a lack of third-party app support (no Spotify/WhatsApp),...Read more

    (Translated)Show original
    C
    chip.de
    08/07/2025
    Xiaomi Watch S4 Review - CHIP

    The Xiaomi Watch S4 is highlighted as a high-value smartwatch featuring a unique, swappable bezel system and a bright 1.43-inch AMOLED display (2,200 nits) for excellent outdoor visibility. Operating on HyperOS, the device offers smooth navigation via a rotating crown, alongside impressive battery life lasting up to 15 days, 5ATM water resistance, and comprehensive tracking with...Read more

    (Translated)Show original
    L
    lesnumeriques.com
    12/03/2025
    Xiaomi Watch S4 Review: The Affordable and Stylish Smartwatch

    The Xiaomi Watch S4, reviewed by Les Numériques, features a premium design with a 1.43-inch AMOLED display and a unique, swappable bezel system. The device offers a fluid HyperOS 2.0 interface, 150+ sports modes, and up to 15 days of battery life. Key pros include a bright 1,500-nit screen and intuitive controls via a new rotating crown. However, the watch lacks a robust third-party...Read more

    (Translated)Show original
    F
    frandroid.com
    29/10/2024
    Everything to know about the watch designed with Suunto

    The Xiaomi Watch S4 is a versatile, premium-feeling smartwatch running HyperOS 2 that features a 1.43-inch, 2200-nit AMOLED display and a unique, swappable bezel system. While lauded for its robust design and long-lasting battery (up to 15 days), the watch can feel bulky and suffers from limited third-party app support, positioning it more as a "lite" smartwatch compared to Wear OS...Read more

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    L
    leclaireur.fnac.com
    28/08/2025
    Xiaomi Watch S4: Our Hands-on Review

    The Xiaomi Watch S4, featured on L'Éclaireur Fnac, is a stylish smartwatch offering 15-day battery life, a 1.43-inch 2,200-nit AMOLED display, and a unique, swappable bezel system. Running HyperOS 2.0 with a new rotating crown for smoother navigation, the device boasts precise dual-band GPS, 5ATM water resistance, and accurate health tracking with over 150 sports modes. While...Read more

    (Translated)Show original
    P
    phonandroid.com
    16/07/2025
    Xiaomi Watch S4 Review: Our Full Verdict on the Customizable Smartwatch

    The Xiaomi Watch S4 is a budget-friendly, high-end aesthetic smartwatch featuring a 1.43-inch, 2,200-nit AMOLED display, a sleek aluminium frame, and a unique, user-swappable bezel system. It operates on HyperOS 2.0 with over 150 sports modes and offers impressive battery life, lasting up to 15 days on a single charge. While tracking is robust, the device is held back by a limited,...Read more

    (Translated)Show original
    F
    frandroid.com
    24/06/2025
    Xiaomi Watch S4 Review: A customizable watch with excellent battery life

    The Xiaomi Watch S4 is a customizable, mid-range smartwatch featuring a unique, swappable bezel system and an exceptionally bright 1.43-inch AMOLED display (2200 nits). Powered by HyperOS 2, it delivers a smooth experience with a tactile rotating crown for navigation. Key strengths include a 15-day battery life, extensive 150+ sports modes, and robust health tracking. However, the...Read more

    (Translated)Show original
    S
    sudinfo.be
    27/03/2025
    Xiaomi Watch S4 Review: The smartwatch that has almost everything to love

    The Sudinfo review highlights the Xiaomi Watch S4 as a highly customisable, stylish wearable featuring interchangeable bezels and a bright 1.43-inch AMOLED display. Running on HyperOS 2 with a new rotating crown, it delivers a fluid experience and robust performance, including 150+ sports modes and precise dual-frequency GNSS. While offering excellent 15-day battery life and fast...Read more

    (Translated)Show original
    J
    journaldugeek.com
    12/05/2025
    Xiaomi Watch S4 Review: Customisable style at a killer price, but watch out for the trade-offs

    The Journal du Geek review highlights the Xiaomi Watch S4 as a budget-friendly (approx. €160-€170) smartwatch focusing on style, featuring a unique, swappable bezel system and a vibrant 1.43-inch AMOLED display that reaches 2,200 nits. While offering a premium, customizable aesthetic, the device operates more like a sophisticated fitness tracker than a full smartwatch due to a lack...Read more

    (Translated)Show original
    C
    clubic.com
    20/09/2025
    Xiaomi Watch S4 Review: Not quite a smartwatch, but focused on the essentials

    The Xiaomi Watch S4 is positioned as a high-value, stylish wearable featuring a unique interchangeable bezel system that alters the watch face, powered by the fluid HyperOS interface. It boasts a vibrant 1.43-inch AMOLED display with 2,200 nits peak brightness, offering excellent outdoor visibility. Key health features include extensive sports modes, continuous heart rate...Read more

    (Translated)Show original
    L
    larazon.es
    13/04/2025
    Xiaomi Watch S4 review: A great experience with several notable omissions

    The La Razón review highlights the Xiaomi Watch S4 as a premium-feeling mid-range smartwatch featuring an aluminium alloy frame, interchangeable bezels, and a functional rotating crown for HyperOS 2 navigation. Key pros include a 1.43-inch AMOLED display with 2,200 nits brightness, up to 15 days of battery life, and comprehensive fitness tracking with dual-frequency GNSS. However,...Read more

    (Translated)Show original
    R
    razorman.net
    25/04/2025
    Xiaomi Watch S4 Review - Razorman

    The Razorman.net review presents the Xiaomi Watch S4 as a mid-range, high-quality device featuring a 1.43-inch AMOLED display, a sleek aluminum frame, and an interchangeable bezel system for customization. Driven by HyperOS 2.0 and a responsive rotating crown, the watch offers a fluid user experience with extensive fitness capabilities, including over 150 sports modes and highly...Read more

    (Translated)Show original
    Z
    zonamovilidad.es
    26/09/2025
    Xiaomi Watch S4: The Ultimate Sports Smartwatch?

    The Xiaomi Watch S4 is a budget-friendly smartwatch featuring an aluminium alloy build, a 1.43-inch AMOLED display with 2,200 nits brightness, and a unique interchangeable bezel system for customization. The device runs on HyperOS 2.0 with a rotating crown for navigation, though its bulky design may not suit all users. Key features include over 150 sports modes, dual-frequency GNSS,...Read more

    (Translated)Show original
    S
    smartwatchcentral.co.uk
    05/01/2026
    Xiaomi Watch S4 41mm Review - Smartwatch Central

    The Xiaomi Watch S4 41mm offers a premium, compact design with a bright 1.32-inch AMOLED display and a polished stainless steel body, making it a stylish choice for smaller wrists. It features fluid performance powered by HyperOS 3 and delivers accurate heart rate tracking during high-intensity training, alongside a 2-to-6-day battery life. However, the 41mm model exhibits...Read more

    (Translated)Show original
    E
    evosmart.it
    05 Ottobre 2025
    Xiaomi Watch S4 41mm Review: Striking the Balance Between Style and Substance

    The Xiaomi Watch S4 41mm offers a refined, compact design featuring a 1.32-inch AMOLED screen and a responsive rotating crown, balancing aesthetics with performance. Powered by HyperOS 3.0, the device provides improved fluidity, comprehensive health tracking including a specialized skin temperature sensor, and up to 8 days of battery life. Despite these strengths, the review notes...Read more

    (Translated)Show original

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