WatchFitTool

Xiaomi Watch S4 vs Watch S4 41mm

Size, specs & wrist fit compared

Xiaomi Watch S4
Xiaomi Watch S4
Xiaomi Watch S4 41mm
Xiaomi Watch S4 41mm

Which one fits you

Under 17 cm (6.7 in) round, the 47.3mm's lugs overhang and the 41mm's do not; the 41mm fills the wrist at 15.5–17.5 cm, the 47.3mm at 18–20 cm.

What else differs

  • Screen: the 47.3mm has the larger screen, 1.43 in across against 1.32 in on the 41mm.
  • Battery: 15 days for the 47.3mm against 8 days for the 41mm in everyday use.

2.5mm thinner, the Watch S4 41mm is the one that slides under a shirt cuff.

The Watch S4 is thinner than 90% of smartwatches 47mm across and the Watch S4 41mm is thinner than 95% of those 41mm across — so both wear flatter than their widths suggest.

The Watch S4 is 6.1mm wider, 2.5mm thicker and 12.5g heavier than the Watch S4 41mm.

Watch S4

Watch S4 41mm

Case width
47.3mm
41.2mm−6.1mm
Thickness
12mm
9.5mm−2.5mm
Weight
44.5g
32g−12.5g

Watch S4: 47.3mm or 41mm by wrist size

Wrist round (mm left each side)47.3mm≈54.5mm lug to lug, est.41mm≈47.5mm lug to lug, est.
14 cm / 5.5 inOverhangs (4.7mm over)Overhangs (1.2mm over)
15 cm / 5.9 inOverhangs (3.1mm over)Bold (0.4mm)
16 cm / 6.3 inOverhangs (1.4mm over)Sweet spot (2.1mm)
17 cm / 6.7 inBold (0.2mm)Sweet spot (3.7mm)
18 cm / 7.1 inSweet spot (1.8mm)Balanced (5.3mm)
19 cm / 7.5 inSweet spot (3.4mm)Balanced (6.9mm)
20 cm / 7.9 inBalanced (5mm)Balanced (8.5mm)

How the fit model works · Size chart for every wrist

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Xiaomi Watch S4

Xiaomi

Watch S4

Xiaomi Watch S4 41mm

Xiaomi

Watch S4 41mm

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Battery life compared

Furthest apart in Battery life mode, where the S4 lasts 1.9× as long as the S4 41mm (15 days against 8 days).

S4S4 41mm

  • Battery life

    15 days
    8 days

More comparisons

2D Dimension Schematics

Top view
Side view
  • Xiaomi Watch S4 47.3mm × ≈54.5mm (est.) · 12mm thick
  • Xiaomi Watch S4 41mm 41.2mm × ≈47.5mm (est.) · 9.5mm thick

3D preview

Watch S4 vs Watch S4 41mm on a wrist

Open 3D try-on

Specifications

The short version

10 key specs
SpecXiaomiWatch S4XiaomiWatch S4 41mm
Case Width47.3mm41.2mm
Thickness12mm9.5mm
Weight44.5g32g
ShapeCircularCircular
Water Resistance5 ATM5 ATM
GPSYesYes
Display typeOLED/AMOLEDOLED/AMOLED
Screen size1.43 inches1.32 inches
Battery life15 days8 days
Released20242025

Where the specifications differ

13 differences
SpecXiaomi Watch S4Xiaomi Watch S4 41mm
Design
width47.341.2
height47.341.2
volume26.85 cm³16.13 cm³
weight44.5 g32 g
thickness129.5
screen size1.43 inches1.32 inches
pixel density326 ppi320 ppi
Battery
battery life15 days8 days
battery power486 mAh320 mAh
has wireless chargingYesNo
Features
release date2024-10-292025-06-26
number of microphones21
Connectivity
Bluetooth version5.35.4

The other 91 specifications both list are identical.

Full Xiaomi Watch S4 specifications →Full Xiaomi Watch S4 41mm specifications →