Xiaomi · 2024
Watch S4 SportSize, Dimensions & Wrist Fit
The Xiaomi Watch S4 Sport sits best on flat wrist widths of about 49–67mm (≈ 13.1–17.9cm wrist circumference). Adjust the slider below to check your wrist.
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The Watch S4 Sport in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 15 days of use per charge.
- Water rated to 40 m.
- 49g on the wrist. Lighter than 74% of the 47mm watches we have weights for.
- 1.43 inches OLED/AMOLED display, always-on capable.
- Takes 22mm bands, so third-party straps fit without an adapter.
Does the Watch S4 Sport fit your wrist?
Drag the slider to your wrist width and see the Watch S4 Sport overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Xiaomi Watch S4 Sport
Case 46.9mm · Lug-to-lug 46.9mm · Thickness 12.6mm · 49g
Sweet Spot
46.9mm on a 55mm wrist
Across the wrist it works — 4.1mm spare each side — but wide enough that the edge of the case back lifts clear of the skin.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 46.9mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist4.1mm spare each side
Fills the wrist without reaching the edge.
- Off the wrist12.6mm off the skin
Normal sports-watch height for a wrist this size. (12.6mm case, back against the skin)
- How it seats~6.1mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist49g
Light enough to forget you have it on. (0.9g per mm of wrist)
Happy with the fit? Check current availability for the Watch S4 Sport.
Check offer2D Dimension Schematics
The Watch S4 Sport drawn to scale — from above, and in profile against the wrist.
- Xiaomi Watch S4 Sport46.9mm · 12.6mm thick
3D preview
Xiaomi Watch S4 Sport 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.
Watch S4 Sport battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch15 days
How the Watch S4 Sport ranks on battery
Against the 32 Xiaomi watches in our database, ranked on each figure Xiaomi publishes.
- Everyday use15 days#6 of 32
- Capacity586 mAh#2 of 32
Top three in the Xiaomi range for battery capacity.
What size band does the Watch S4 Sport take?
Lug width
22mm
Any 22mm strap fits, so you are not restricted to Xiaomi's own bands. Quick-release pins let you swap without tools — check that a replacement lists 22mm and quick-release before buying.
Affiliate disclosure: As an Amazon Associate, WatchFitTool earns from qualifying purchases. If you buy through links on this page, we may earn a commission at no extra cost to you. Learn more.
Watch S4 Sport specifications
The figures that decide a purchase, followed by every line Xiaomi publishes.
- Battery life
- 15 days
- Display
- 1.43 inches
- Resolution
- 466 x 466 px
- Water rating
- 5 ATM
- Strap
- 22 mm
- Storage
- 32GB
Full specification sheet
106 published lines across 8 groups, unedited
Design
- width
- 46.9
- height
- 46.9
- volume
- 27.72 cm³
- weight
- 49 g
- thickness
- 12.6
- ATM rating
- 5 ATM
- resolution
- 466 x 466 px
- screen size
- 1.43 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 326 ppi
- width of band
- 22 mm
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- is designed for kids
- waterproof depth rating
- 40 m
- Watch band is replaceable
- Has sapphire glass display
- has branded damage-resistant glass
Battery
- battery life
- 15 days
- battery power
- 586 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 a cadence sensor
- has an accelerometer
- Monitors perspiration
- Has a heart rate monitor
- Has a temperature sensor
- Monitors blood oxygenation levels
Features
- release date
- 2024-07-19
- Has a stopwatch
- Has smart alarm
- warranty period
- 1 years
- Has call control
- Has silent alarm
- has HRV tracking
- internal storage
- 32GB
- measures VO2 max
- Has notifications
- Has ECG technology
- Locates your phone
- has a front camera
- has fall detection
- has voice commands
- Acquires GPS faster
- Has vibrating alerts
- number of microphones
- 1
- shows readiness level
- Can be used to answer calls
- measures resting heart rate
- has irregular heart rate warnings
- has fast/slow heart rate notifications
- Has a built-in camera remote control function
Connectivity
- has NFC
- SIM cards
- 1 eSIM
- supports ANT+
- 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
App & Software
- Ad-free
- Free app
- Has coaching
- Includes maps
- 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
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks elevation
- Tracks your sleep
- Tracks steps taken
- Designed for diving
- Has a route tracker
- Has exercise tagging
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
- Has a stroke counter for swimming
Compare the Watch S4 Sport head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the Watch S4 Sport.
Xiaomi
Watch 5
- Width
- +0.1mm
- Thick
- -0.3mm
- Weight
- +7g
Apple
Watch Ultra 3
- Width
- -2.9mm
- Thick
- -0.6mm
- Weight
- +12.8g
Pixel Watch 4 - 45mm
- Width
- -1.9mm
- Thick
- -0.3mm
- Weight
- -12.3g
Amazfit
Balance 2
- Width
- +0.5mm
- Thick
- -0.3mm
- Weight
- -6g
Garmin
Forerunner® 570 - 47mm
- Width
- +0.1mm
- Thick
- +0.3mm
- Weight
- +1g
Garmin
Forerunner® 970
- Width
- +0.1mm
- Thick
- +0.3mm
- Weight
- +7g
Xiaomi
Watch S4
- Width
- +0.4mm
- Thick
- -0.6mm
- Weight
- -4.5g
Huawei
Watch GT 5 Pro
- Width
- -0.6mm
- Thick
- -1.7mm
- Weight
- +4g
Amazfit
Active Edge
- Width
- -0.3mm
- Thick
- -0.6mm
- Weight
- -15g
Xiaomi
Watch S3
- Width
- +0.1mm
- Thick
- -0.6mm
- Weight
- -5g
Xiaomi
Watch S3 eSIM
- Width
- +0.1mm
- Thick
- -0.6mm
- Weight
- -5g
Samsung
Galaxy Watch6 Classic - LTE · 47mm
- Width
- -0.4mm
- Thick
- -1.7mm
- Weight
- +10g
Alternatives to the Watch S4 Sport
Watches that cover a similar amount of wrist, with the measurements that separate them.
Watch S4 Sport — Frequently Asked Questions
Will the Xiaomi Watch S4 Sport fit my wrist?
The Xiaomi Watch S4 Sport looks balanced on flat wrist widths of roughly 49–67mm (about 13.1–17.9cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Xiaomi Watch S4 Sport take?
22mm. Any 22mm strap fits, so you are not limited to Xiaomi's own bands — look for a quick-release fitting if you want to swap without tools.
How long does the Xiaomi Watch S4 Sport battery last?
Xiaomi rates it at 15 days per charge in everyday use.
How does the Xiaomi Watch S4 Sport battery compare with other Xiaomi watches?
At 15 days in everyday use it ranks #6 of the 32 Xiaomi watches in our database — the top 19% of the range. The full ranking, including GPS and power-saving figures, is on our Xiaomi battery life comparison.
Is the Xiaomi Watch S4 Sport thick for a 47mm watch?
At 12.6mm, middle of the pack for thickness at this width. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the Xiaomi Watch S4 Sport?
Garmin Fenix 9 47mm, Oppo Watch X3, CMF Watch 3 Pro, Amazfit Balance 2 all sit within half a millimetre of the Xiaomi Watch S4 Sport's 46.9mm case, so they cover the same amount of wrist.
