WatchFitTool
Xiaomi Watch S4 41mm — case dimensions and design

Xiaomi · 2025

Watch S4 41mmSize, Dimensions & Wrist Fit

Case Width

41.2mm

Thickness

9.5mm

Battery

8 days

Weight

32g

The Xiaomi Watch S4 41mm sits best on flat wrist widths of about 43–59mm (≈ 11.5–15.8cm wrist circumference). Adjust the slider below to check your wrist.

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The Watch S4 41mm in short

The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.

  • Rated for 8 days of use per charge.
  • Water rated to 5 ATM.
  • 32g on the wrist. Lighter than 73% of the 41mm watches we have weights for.
  • 1.32 inches OLED/AMOLED display, always-on capable.
  • Carries on-board maps rather than breadcrumb navigation only.

Does the Watch S4 41mm fit your wrist?

Drag the slider to your wrist width and see the Watch S4 41mm overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.

Fit tool

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.

Your wrist
mm
≈ 146.9mm around

Xiaomi Watch S4 41mm

Case 41.2mm · Lug-to-lug 41.2mm · Thickness 9.5mm · 32g

Balanced Fit

41.2mm on a 55mm wrist

10:09TUE 12lug to lug 41.2mmyour wrist 55.0mm

Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.

On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 41.2mm, so you could go bigger.

How to Measure

Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.

  1. 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. 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Complete Wrist Measurement Guide →
Against one you know

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 measurements
  • Across the wrist6.9mm spare each side

    Comfortable, with visible skin either side.

  • Off the wrist9.5mm off the skin

    Sits low enough to disappear under a cuff. (9.5mm case, back against the skin)

  • How it seats~3.8mm under the rim

    Seats well, with the case back following most of the wrist.

  • Weight on the wrist32g

    Light enough to forget you have it on. (0.6g per mm of wrist)

Happy with the fit? Check current availability for the Watch S4 41mm.

Check offer

2D Dimension Schematics

The Watch S4 41mm drawn to scale — from above, and in profile against the wrist.

Highlight
From above — true scale
From the side — how far it sits off the wrist
  • Xiaomi Watch S4 41mm41.2mm · 9.5mm thick

3D preview

Xiaomi Watch S4 41mm on a wrist

On an arm sized to your own wrist — the view a product photo never gives you.

Open 3D try-on

Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.

Which Watch S4 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?

55.0mm

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 S4 variants fit this wrist. The 47.3mm gives you the most presence without overhanging; the smallest is the discreet end of the range.

41.2mmViewing
Balanced Fit
Width
41.2mm
Thick
9.5mm
Weight
32g

6.9mm clear a side

47.3mmBest fit
Sweet Spot
Width
47.3mm
Thick
12mm
Weight
44.5g

3.9mm clear a side

View this size

Watch S4 41mm battery life

The runtime the manufacturer publishes for everyday use.

  • Smartwatch8 days

How the Watch S4 41mm ranks on battery

Against the 32 Xiaomi watches in our database, ranked on each figure Xiaomi publishes.

  • Everyday use8 days#25 of 32
  • Capacity320 mAh#24 of 32

Watch S4 41mm specifications

The figures that decide a purchase, followed by every line Xiaomi publishes.

Battery life
8 days
Display
1.32 inches
Resolution
466 x 466 px
Water rating
5 ATM
Storage
32GB

Full specification sheet

104 published lines across 8 groups, unedited

Design

width
41.2
height
41.2
volume
16.13 cm³
weight
32 g
thickness
9.5
ATM rating
5 ATM
resolution
466 x 466 px
screen size
1.32 inches
Display type
OLED/AMOLED
Has a display
pixel density
320 ppi
water resistance
Waterproof
Always-On Display
has a touch screen
is designed for kids
Watch band is replaceable
Has sapphire glass display
has branded damage-resistant glass

Battery

battery life
8 days
battery power
320 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
2025-06-26
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
5.4
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

Watch S4 41mm — Frequently Asked Questions

Will the Xiaomi Watch S4 41mm fit my wrist?

The Xiaomi Watch S4 41mm looks balanced on flat wrist widths of roughly 43–59mm (about 11.5–15.8cm circumference). Drag the slider above to check it against your own measurement.

How long does the Xiaomi Watch S4 41mm battery last?

Xiaomi rates it at 8 days per charge in everyday use.

How does the Xiaomi Watch S4 41mm battery compare with other Xiaomi watches?

At 8 days in everyday use it ranks #25 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 S4 41mm thick for a 41mm watch?

At 9.5mm, thinner than 98% of 41mm 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 41.2mm or 47.3mm Watch S4?

The Watch S4 comes in 2 case sizes — 41.2mm, 47.3mm. 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 S4 41mm?

TAG Heuer Carrera Chronograph Glass Box 41 Stainless Steel / Black, Zenith Defy Skyline Tourbillon Skeleton Rose Gold / Blue, Garmin Venu 4 41mm, Huawei Watch GT 6 - 41mm all sit within half a millimetre of the Xiaomi Watch S4 41mm's 41.2mm case, so they cover the same amount of wrist.