COROS
Device summary
Xiaomi
Xiaomi Watch S4
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2026 | 2024 |
| Starting price | — | — |
| Display size | 1.5-inch | 1.4-inch |
| Dimensions | 47.6 mm × 47.6 mm × 11.8 mm | 47.3 mm × 47.3 mm × 12.0 mm |
| Weight | 43 g | 45 g |
| Front material | Sapphire | — |
| Back material | — | — |
| Display | ||
| Display technology | LTPO AMOLED | AMOLED |
| Resolution | — | 466 × 466 |
| Performance | ||
| Expandable storage | — | No |
| Battery & charging | ||
| Charging standard | — | Magnetic charging dock |
| Battery type | — | Lithium-ion polymer |
| Connectivity | ||
| Cellular | — | GPS / multi-GNSS |
| Bluetooth | — | Bluetooth |
| NFC | — | Yes |
| Build & durability | ||
| Frame | Titanium | — |
| Ingress protection | — | 5 ATM |
| Basic information | ||
|---|---|---|
| Release year | 2026 | 2024 |
| Starting price | — | — |
| Display size | 1.5-inch | 1.4-inch |
| Dimensions | 47.6 mm × 47.6 mm × 11.8 mm | 47.3 mm × 47.3 mm × 12.0 mm |
| Weight | 43 g | 45 g |
| Front material | Sapphire | — |
| Back material | — | — |
| Display | ||
| Display technology | LTPO AMOLED | AMOLED |
| Resolution | — | 466 × 466 |
| Performance | ||
| Expandable storage | — | No |
| Battery & charging | ||
| Charging standard | — | Magnetic charging dock |
| Battery type | — | Lithium-ion polymer |
| Connectivity | ||
| Cellular | — | GPS / multi-GNSS |
| Bluetooth | — | Bluetooth |
| NFC | — | Yes |
| Build & durability | ||
| Frame | Titanium | — |
| Ingress protection | — | 5 ATM |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Height
Very similar height
Width
Very similar width
Thickness
Very similar thickness
Display size
Very similar display size
Height, width, thickness, and weight are very similar between these devices.