
Xiaomi · 2022
Watch S2 42mmSize, Dimensions & Wrist Fit
The Xiaomi Watch S2 42mm sits best on flat wrist widths of about 44–60mm (≈ 11.7–16.0cm wrist circumference). Adjust the slider below to check your wrist.
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The Watch S2 42mm in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 3 days of use per charge.
- Water rated to 5 ATM.
- 10.2mm thick. Thinner than 90% of 42mm watches, so it slides under a cuff more easily than most of its size.
- 1.32 inches OLED/AMOLED display.
Does the Watch S2 42mm fit your wrist?
Drag the slider to your wrist width and see the Watch S2 42mm overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Happy with the fit? Check current availability for the Watch S2 42mm.
Check offer2D Dimension Schematics
The Watch S2 42mm drawn to scale — from above, and in profile against the wrist.
- Xiaomi Watch S2 42mm42mm · 10.2mm thick
3D preview
Xiaomi Watch S2 42mm on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Which Watch S2 size fits you?
This model comes in 2 versions. Set your measurement and each one reports its own verdict — tap any size to open its page.
Which of these fits your wrist?
Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.
All 2 Watch S2 variants fit this wrist. The 46mm gives you the most presence without overhanging; the smallest is the discreet end of the range.
- Width
- 42mm
- Thick
- 10.2mm
- Weight
- —
6.5mm clear a side
- Width
- 46mm
- Thick
- 10.7mm
- Weight
- —
4.5mm clear a side
View this sizeWatch S2 42mm battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch3 days
How the Watch S2 42mm ranks on battery
Against the 32 Xiaomi watches in our database, ranked on each figure Xiaomi publishes.
- Everyday use3 days#28 of 32
- Capacity305 mAh#25 of 32
Watch S2 42mm specifications
The figures that decide a purchase, followed by every line Xiaomi publishes.
- Battery life
- 3 days
- Display
- 1.32 inches
- Resolution
- 466 x 466 px
- Water rating
- 5 ATM
Full specification sheet
91 published lines across 8 groups, unedited
Design
- width
- 42
- height
- 42
- volume
- 17.99 cm³
- thickness
- 10.2
- ATM rating
- 5 ATM
- resolution
- 466 x 466 px
- screen size
- 1.32 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 353 ppi
- water resistance
- Water resistant
- Always-On Display
- has a touch screen
- Watch band is replaceable
- Has sapphire glass display
- has branded damage-resistant glass
Battery
- battery life
- 3 days
- battery power
- 305 mAh
- has wireless charging
- has a removable battery
- Has a solar power battery
- has a rechargeable battery
Sensors
- has GPS
- has a compass
- Has a barometer
- has a gyroscope
- has an accelerometer
- Monitors perspiration
- Has a heart rate monitor
- Has a temperature sensor
- Monitors blood oxygenation levels
Features
- release date
- 2022-12-11
- Has a stopwatch
- Has smart alarm
- warranty period
- 1 years
- Has call control
- Has silent alarm
- Has notifications
- Has ECG technology
- has fall detection
- has voice commands
- Has vibrating alerts
- Can be used to answer calls
- has irregular heart rate warnings
- Has a built-in camera remote control function
Connectivity
- has NFC
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 5.2
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- Has passcode
- Is compatible with Windows
- Is compatible with Mac OS X
- has an external memory slot
- has a battery level indicator
- has a socket for a 3.5 mm audio jack
- Compatible with external heart rate monitors
App & Software
- Free app
- Has coaching
- Supports routes
- Has achievements
- Has goal setting
- Has exercise diary
- Predicts ovulation
- Can be personalised
- Has weight tracking
- Predicts start date
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Has temperature tracking
- Doesn’t require account
- Provides activity reports
- Displays fertile window notifications
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks elevation
- Designed for golf
- Tracks your sleep
- Tracks steps taken
- Designed for diving
- Has a route tracker
- Has exercise tagging
- Has multi-sport mode
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
- Has a stroke counter for swimming
Alternatives to the Watch S2 42mm
Watches that cover a similar amount of wrist, with the measurements that separate them.

Xiaomi
Watch S4 41mm
- Width
- 41.2mm
- Thick
- 9.5mm
- Weight
- 32g

Xiaomi
Redmi Watch 5
- Width
- 41.1mm
- Thick
- 11.3mm
- Weight
- 33.5g

Xiaomi
Redmi Watch 4
- Width
- 41.1mm
- Thick
- 10.5mm
- Weight
- 31.5g

Xiaomi
Redmi Watch 5 Active
- Width
- 40.4mm
- Thick
- 11.4mm
- Weight
- 42.2g

Xiaomi
Redmi Watch 6
- Width
- 40mm
- Thick
- 9.9mm
- Weight
- 31g

Xiaomi
Redmi Watch Move
- Width
- 38.9mm
- Thick
- 10.8mm
- Weight
- 25g
Watch S2 42mm — Frequently Asked Questions
Will the Xiaomi Watch S2 42mm fit my wrist?
The Xiaomi Watch S2 42mm looks balanced on flat wrist widths of roughly 44–60mm (about 11.7–16.0cm circumference). Drag the slider above to check it against your own measurement.
How long does the Xiaomi Watch S2 42mm battery last?
Xiaomi rates it at 3 days per charge in everyday use.
How does the Xiaomi Watch S2 42mm battery compare with other Xiaomi watches?
At 3 days in everyday use it ranks #28 of the 32 Xiaomi watches in our database — below the middle of the range. The full ranking, including GPS and power-saving figures, is on our Xiaomi battery life comparison.
Is the Xiaomi Watch S2 42mm thick for a 42mm watch?
At 10.2mm, thinner than 90% of 42mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
Should I get the 42mm or 46mm Watch S2?
The Watch S2 comes in 2 case sizes — 42mm, 46mm. Which one suits you depends on the flat width of your wrist rather than preference: the larger sizes need a wider wrist to sit inside the edge. Set your measurement in the size picker above and each variant reports its clearance in millimetres.
What other watches are the same size as the Xiaomi Watch S2 42mm?
Certina DS Action Chrono PVD / Carbon / Bracelet, Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Black Lacquer, TAG Heuer Carrera Chronograph Seafarer Stainless Steel / Silver, Huawei Watch 5 - 42mm all sit within half a millimetre of the Xiaomi Watch S2 42mm's 42mm case, so they cover the same amount of wrist.
