Amazfit GTR 4 vs Apple Watch Ultra 3
Which one should you buy?
Who leads where?
- Health Sensors and FeaturesApple Watch Ultra 3
- DisplayApple Watch Ultra 3
- KasaAmazfit GTR 4
- Battery and ChargingAmazfit GTR 4
- Water and Dust ResistanceApple Watch Ultra 3
- ConnectivityApple Watch Ultra 3
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.
 AmazfitAmazfit GTR 4No reviews yet |  AppleApple Watch Ultra 3No reviews yet | |
|---|---|---|
| Key Differences | ||
| Case Size | 46 mm | 49 mm |
| Processor | — | Apple S10 |
| Battery Life | up to 336 hours | up to 42 hours |
| ECG App | — | Yes |
| Water Resistance | 5 ATM | 100m |
| Health Sensors and Features | ||
| Heart Rate Sensor | Yes | Yes |
| SpO2 Sensor | Yes | Yes |
| ECG Sensor | — | Yes |
| Skin Temperature Sensor | — | Yes |
| ECG App | — | Yes |
| Atrial Fibrillation Notification | — | Yes |
| Sleep Tracking | — | Yes |
| Fall Detection | — | Yes |
| Crash Detection | — | Yes |
| Display | ||
| Size | 1.43" | — |
| Panel | AMOLED | OLED (LTPO3) |
| Resolution | 466x466 | 422x514 |
| Peak Brightness | — | 3000 nit |
| Always-On Display | — | Yes |
| Kasa | ||
| Case Size | 46 mm | 49 mm |
| Case Thickness | 10.6 mm | 12 mm |
| Weight | 34 g | 61.6 g |
| Case Material | Aluminium alloy and polycarbonate | Titanium |
| Front Glass | Tempered Glass | — |
| Strap Width | 22 mm | — |
| Positioning and GNSS | ||
| GNSS Receiver | Yes | Yes |
| Dual-Band GNSS | Yes | Yes |
| GNSS Systems | — | GPS, GLONASS, Galileo, QZSS, BeiDou |
| Battery and Charging | ||
| The figure the maker states | up to 336 hours | up to 42 hours |
| What that figure measures | In typical use | Normal use |
| Capacity | 475 mAh | — |
| Charging Type | Magnetic charging | Fast charging |
| Water and Dust Resistance | ||
| Water Resistance | 5 ATM | 100m |
| IP Rating | — | IP6X |
| Rated Depth | — | 40 m |
| MIL-STD-810 | — | MIL-STD-810H |
| Performance | ||
| Processor | — | Apple S10 |
| Storage | — | 64 GB |
| Connectivity | ||
| Cellular | — | Optional |
| Wi-Fi | — | Wi-Fi 4 |
| Bluetooth | 5.0 | 5.3 |
| Speaker | — | Yes |
| Microphone | — | Yes |
| Software | ||
| Operating System | — | watchOS |
| Phone Compatibility | Android 7.0 and above, iOS 12.0 and above | iPhone 11 or later (iOS 26+) |
Apple Watch Ultra 3 leads on 12 of 15 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.