Xiaomi Watch 2 vs Xiaomi Watch S4
Which one should you buy?
Who leads where?
- Health Sensors and FeaturesXiaomi Watch S4
- DisplayXiaomi Watch S4
- KasaXiaomi Watch 2
- Positioning and GNSSXiaomi Watch S4
- Battery and ChargingXiaomi Watch 2
- ConnectivityXiaomi Watch S4
Wins are counted from the official values in the table below; the BUY / CONSIDER / WAIT call comes from each product's own decision box. We do not predict prices.
 XiaomiXiaomi Watch 2No reviews yet |  XiaomiXiaomi Watch S4No reviews yet | |
|---|---|---|
| Key Differences | ||
| Case Size | 47.5 mm | 47.3 mm |
| Processor | Qualcomm Snapdragon W5+ Gen 1 | — |
| Battery Life | — | up to 360 hours |
| Water Resistance | 5 ATM | 5 ATM |
| Health Sensors and Features | ||
| Heart Rate Sensor | Yes | Yes |
| SpO2 Sensor | — | Yes |
| Display | ||
| Size | 1.43" | 1.43" |
| Panel | AMOLED | AMOLED |
| Resolution | 466x466 | 466x466 |
| Peak Brightness | 600 nit | 1500 nit |
| Kasa | ||
| Case Size | 47.5 mm | 47.3 mm |
| Case Thickness | 11.8 mm | 12 mm |
| Weight | 36.8 g | 44.5 g |
| Case Material | — | Aluminium alloy |
| Positioning and GNSS | ||
| GNSS Receiver | — | Yes |
| GNSS Systems | — | GPS, GLONASS, Galileo, BeiDou, QZSS |
| Battery and Charging | ||
| The figure the maker states | — | up to 360 hours |
| What that figure measures | — | In typical use |
| Capacity | 495 mAh | 486 mAh |
| Charging Type | — | Magnetic charging |
| Water and Dust Resistance | ||
| Water Resistance | 5 ATM | 5 ATM |
| Performance | ||
| Processor | Qualcomm Snapdragon W5+ Gen 1 | — |
| RAM | 2 GB | — |
| Storage | 32 GB | — |
| Connectivity | ||
| Bluetooth | 5.2 | 5.3 |
| NFC | — | Yes |
| Speaker | — | Yes |
| Microphone | — | Yes |
| Software | ||
| Operating System | — | Xiaomi HyperOS 2 |
| Phone Compatibility | — | Android and iOS |
Xiaomi Watch S4 leads on 6 of 9 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.