OPPO
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 | 47.4 mm × 47.4 mm × 11.0 mm | 47.3 mm × 47.3 mm × 12.0 mm |
| Weight | 43 g | 45 g |
| Front material | Sapphire crystal | — |
| Back material | PA with fiberglass | — |
| Display | ||
| Display technology | LTPO AMOLED | AMOLED |
| Resolution | 466 × 466 | 466 × 466 |
| Peak brightness | 3000 nits | — |
| Protection | Sapphire crystal | — |
| Performance | ||
| Chipset | Snapdragon W5 + BES2800BP MCU | — |
| RAM | 2 GB | — |
| Storage | 32 GB | — |
| Expandable storage | No | No |
| Battery & charging | ||
| Charging standard | Watch VOOC Flash Charge (~75 min; 10 min ≈ 1 day) | Magnetic charging dock |
| Battery type | Lithium-ion (silicon-carbon) | Lithium-ion polymer |
| Typical capacity | 646 mAh | — |
| Rated capacity | 632 mAh | — |
| Connectivity | ||
| Cellular | Dual-band GPS L1+L5 / multi-GNSS | GPS / multi-GNSS |
| Wi‑Fi | WLAN 2.4 / 5 GHz | — |
| Bluetooth | Bluetooth 5.2 | Bluetooth |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Titanium alloy (TC4) | — |
| Ingress protection | 5 ATM / IP68 / IP69 / MIL-STD-810H | 5 ATM |
| Basic information | ||
|---|---|---|
| Release year | 2026 | 2024 |
| Starting price | — | — |
| Display size | 1.5-inch | 1.4-inch |
| Dimensions | 47.4 mm × 47.4 mm × 11.0 mm | 47.3 mm × 47.3 mm × 12.0 mm |
| Weight | 43 g | 45 g |
| Front material | Sapphire crystal | — |
| Back material | PA with fiberglass | — |
| Display | ||
| Display technology | LTPO AMOLED | AMOLED |
| Resolution | 466 × 466 | 466 × 466 |
| Peak brightness | 3000 nits | — |
| Protection | Sapphire crystal | — |
| Performance | ||
| Chipset | Snapdragon W5 + BES2800BP MCU | — |
| RAM | 2 GB | — |
| Storage | 32 GB | — |
| Expandable storage | No | No |
| Battery & charging | ||
| Charging standard | Watch VOOC Flash Charge (~75 min; 10 min ≈ 1 day) | Magnetic charging dock |
| Battery type | Lithium-ion (silicon-carbon) | Lithium-ion polymer |
| Typical capacity | 646 mAh | — |
| Rated capacity | 632 mAh | — |
| Connectivity | ||
| Cellular | Dual-band GPS L1+L5 / multi-GNSS | GPS / multi-GNSS |
| Wi‑Fi | WLAN 2.4 / 5 GHz | — |
| Bluetooth | Bluetooth 5.2 | Bluetooth |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Titanium alloy (TC4) | — |
| Ingress protection | 5 ATM / IP68 / IP69 / MIL-STD-810H | 5 ATM |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Thickness
OPPO Watch X3
1 mm thinner
Height
Very similar height
Width
Very similar width
Weight
Very similar weight