WatchFitTool

Xiaomi Watch S2 vs Watch S2 42mm

Size, specs & wrist fit compared

Xiaomi Watch S2
Xiaomi Watch S2
Xiaomi Watch S2 42mm
Xiaomi Watch S2 42mm

Which one fits you

Under 16.5 cm (6.5 in) round, the 46mm's lugs overhang and the 42mm's do not; the 42mm fills the wrist at 16–17.5 cm, the 46mm at 17.5–19.5 cm.

What else differs

  • Screen: the 46mm has the larger screen, 1.43 in across against 1.32 in on the 42mm.
  • Battery: 4 days for the 46mm against 3 days for the 42mm in everyday use.

The Watch S2 is thinner than 93% of smartwatches 46mm across and the Watch S2 42mm is thinner than 92% of those 42mm across — so both wear flatter than their widths suggest.

The Watch S2 is 4mm wider and 0.5mm thicker than the Watch S2 42mm.

Watch S2

Watch S2 42mm

Case width
46mm
42mm−4mm
Thickness
10.7mm
10.2mm−0.5mm

Watch S2: 46mm or 42mm by wrist size

Wrist round (mm left each side)46mm≈53mm lug to lug, est.42mm≈48.5mm lug to lug, est.
14 cm / 5.5 inOverhangs (3.9mm over)Overhangs (1.7mm over)
15 cm / 5.9 inOverhangs (2.3mm over)Overhangs (0.1mm over)
16 cm / 6.3 inOverhangs (0.7mm over)Sweet spot (1.6mm)
17 cm / 6.7 inBold (0.9mm)Sweet spot (3.2mm)
18 cm / 7.1 inSweet spot (2.5mm)Balanced (4.8mm)
19 cm / 7.5 inSweet spot (4.1mm)Balanced (6.4mm)
20 cm / 7.9 inBalanced (5.8mm)Balanced (8mm)

How the fit model works · Size chart for every wrist

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Xiaomi Watch S2

Xiaomi

Watch S2

Xiaomi Watch S2 42mm

Xiaomi

Watch S2 42mm

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Battery life compared

Furthest apart in Battery life mode, where the S2 lasts 1.3× as long as the S2 42mm (4 days against 3 days).

S2S2 42mm

  • Battery life

    4 days
    3 days

2D Dimension Schematics

Top view
Side view
  • Xiaomi Watch S2 46mm × ≈53mm (est.) · 10.7mm thick
  • Xiaomi Watch S2 42mm 42mm × ≈48.5mm (est.) · 10.2mm thick

3D preview

Watch S2 vs Watch S2 42mm on a wrist

Open 3D try-on

Specifications

The short version

9 key specs
SpecXiaomiWatch S2XiaomiWatch S2 42mm
Case Width46mm42mm
Thickness10.7mm10.2mm
ShapeCircularCircular
Water Resistance5 ATM5 ATM
GPSYesYes
Display typeOLED/AMOLEDOLED/AMOLED
Screen size1.43 inches1.32 inches
Battery life4 days3 days
Released20222022

Where the specifications differ

9 differences
SpecXiaomi Watch S2Xiaomi Watch S2 42mm
Design
width4642
height4642
volume22.64 cm³17.99 cm³
thickness10.710.2
screen size1.43 inches1.32 inches
pixel density326 ppi353 ppi
Always-On DisplayYesNo
Battery
battery life4 days3 days
battery power500 mAh305 mAh

The other 82 specifications both list are identical.

Full Xiaomi Watch S2 specifications →Full Xiaomi Watch S2 42mm specifications →