Amazfit GTR 4 vs Amazfit T-Rex 3
Which one should you buy?
Who leads where?
- CaseAmazfit GTR 4
- Battery and ChargingAmazfit T-Rex 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 |  AmazfitAmazfit T-Rex 3No reviews yet | |
|---|---|---|
| Key Differences | ||
| Case Size | 46 mm | 48.5 mm |
| Battery Life | up to 336 hours | up to 648 hours |
| Water Resistance | 5 ATM | 10 ATM |
| Health Sensors and Features | ||
| Heart Rate Sensor | Yes | Yes |
| SpO2 Sensor | Yes | Yes |
| Display | ||
| Size | 1.43" | 1.5" |
| Panel | AMOLED | AMOLED |
| Resolution | 466x466 | 480x480 |
| Case | ||
| Case Size | 46 mm | 48.5 mm |
| Case Thickness | 10.6 mm | 13.75 mm |
| Weight | 34 g | 68.3 g |
| Case Material | Aluminium alloy and polycarbonate | Stainless steel and polymer |
| Front Glass | Tempered Glass | Corning Gorilla Glass |
| Strap Width | 22 mm | 22 mm |
| Positioning and GNSS | ||
| GNSS Receiver | Yes | Yes |
| Dual-Band GNSS | Yes | Yes |
| Battery and Charging | ||
| The figure the maker states | up to 336 hours | up to 648 hours |
| What that figure measures | In typical use | In typical use |
| Capacity | 475 mAh | 700 mAh |
| Charging Type | Magnetic charging | Magnetic charging |
| Water and Dust Resistance | ||
| Water Resistance | 5 ATM | 10 ATM |
| Rated Depth | No data | 45 m |
| Connectivity | ||
| Bluetooth | 5.0 | 5.2 |
| Microphone | No data | Yes |
| Software | ||
| Phone Compatibility | Android 7.0 and above, iOS 12.0 and above | Android 7.0 and above, iOS 14.0 and above |
The two products are level on the compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.