OnePlus Watch 3 vs OnePlus Watch 4
Which one should you buy?
Who leads where?
- DisplayOnePlus Watch 4
- KasaOnePlus Watch 4
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.
 OnePlusOnePlus Watch 3No reviews yet |  OnePlusOnePlus Watch 4No reviews yet | |
|---|---|---|
| Key Differences | ||
| Case Size | 47.6 mm | 47.4 mm |
| Battery Life | up to 120 hours | up to 120 hours |
| ECG App | No data | Yes |
| Water Resistance | 5 ATM | 5 ATM |
| Health Sensors and Features | ||
| Heart Rate Sensor | Yes | Yes |
| SpO2 Sensor | Yes | Yes |
| Skin Temperature Sensor | Yes | Yes |
| ECG App | No data | Yes |
| Sleep Tracking | Yes | Yes |
| Fall Detection | No data | Yes |
| Display | ||
| Size | 1.5" | No data |
| Panel | AMOLED (LTPO) | OLED (LTPO) |
| Resolution | 466x466 | 466x466 |
| Peak Brightness | 2200 nit | 3000 nit |
| Kasa | ||
| Case Size | 47.6 mm | 47.4 mm |
| Case Thickness | 11.75 mm | 11 mm |
| Weight | 49.7 g | 43 g |
| Case Material | Stainless steel | Titanium alloy |
| Front Glass | Sapphire crystal | Sapphire crystal |
| Positioning and GNSS | ||
| GNSS Receiver | Yes | Yes |
| Dual-Band GNSS | Yes | Yes |
| GNSS Systems | GPS, GLONASS, Beidou, Galileo, QZSS | GPS, GLONASS, Beidou, Galileo, QZSS |
| Battery and Charging | ||
| The figure the maker states | up to 120 hours | up to 120 hours |
| What that figure measures | In smartwatch mode | In smartwatch mode |
| Capacity | No data | 646 mAh |
| Charging Type | No data | Fast charging |
| Water and Dust Resistance | ||
| Water Resistance | 5 ATM | 5 ATM |
| IP Rating | IP68 | IP69 |
| MIL-STD-810 | MIL-STD-810H | MIL-STD-810H |
| Performance | ||
| RAM | No data | 2 GB |
| Storage | 32 GB | 32 GB |
| Connectivity | ||
| Bluetooth | 5.2 | 5.2 |
| NFC | Yes | Yes |
| Software | ||
| Operating System | Wear OS | Wear OS 6.0 |
OnePlus Watch 4 leads on 3 of 3 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.