Xiaomi Watch S2 vs Watch S2 42mm
Size, specs & wrist fit compared
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
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 in | Overhangs (3.9mm over) | Overhangs (1.7mm over) |
| 15 cm / 5.9 in | Overhangs (2.3mm over) | Overhangs (0.1mm over) |
| 16 cm / 6.3 in | Overhangs (0.7mm over) | Sweet spot (1.6mm) |
| 17 cm / 6.7 in | Bold (0.9mm) | Sweet spot (3.2mm) |
| 18 cm / 7.1 in | Sweet spot (2.5mm) | Balanced (4.8mm) |
| 19 cm / 7.5 in | Sweet spot (4.1mm) | Balanced (6.4mm) |
| 20 cm / 7.9 in | Balanced (5.8mm) | Balanced (8mm) |
Switch or add watches
Xiaomi
Watch S2
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 days3 days
2D Dimension Schematics
- 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
Specifications
The short version
9 key specs| Spec | XiaomiWatch S2 | XiaomiWatch S2 42mm |
|---|---|---|
| Case Width | 46mm | 42mm |
| Thickness | 10.7mm | 10.2mm |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.43 inches | 1.32 inches |
| Battery life | 4 days | 3 days |
| Released | 2022 | 2022 |
Where the specifications differ
9 differences| Spec | Xiaomi Watch S2 | Xiaomi Watch S2 42mm |
|---|---|---|
| Design | ||
| width | 46 | 42 |
| height | 46 | 42 |
| volume | 22.64 cm³ | 17.99 cm³ |
| thickness | 10.7 | 10.2 |
| screen size | 1.43 inches | 1.32 inches |
| pixel density | 326 ppi | 353 ppi |
| Always-On Display | Yes | No |
| Battery | ||
| battery life | 4 days | 3 days |
| battery power | 500 mAh | 305 mAh |
The other 82 specifications both list are identical.
Full Xiaomi Watch S2 specifications →Full Xiaomi Watch S2 42mm specifications →

