Amazfit T-Rex Ultra 2 vs Amazfit GTR 4 Limited Edition comparison
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| key specs |
| Display Size | 38mm | 36mm |
| Ideal For | Unisex | - |
| Strap Colour | - | Infinite Black |
| Compatible OS | - | Android, iOS |
| Dial Shape | - | Round |
| Display Type | - | AMOLED |
| general |
| Brand | Amazfit | Amazfit |
| Model | T-Rex Ultra 2 | GTR 4 Limited Edition |
| Release date | February 20, 2026 | April 26, 2023 |
| Model Name | Amazfit T-Rex Ultra 2 | Amazfit GTR 4 Limited Edition |
| Dial Colour | Black | - |
| Size | Regular | Regular |
| Touchscreen | 1.5 | Yes |
| Water Resistant | 10 ATM | 5ATM |
| Usage | Regular | Health, Fitness |
| Ideal For | Unisex | - |
| Dial Shape | - | Round |
| Strap Colour | - | Infinite Black |
| dimensions |
| Width | 51 | 46.5 |
| Height | 51 | 46.5 |
| Diameter | 14.3 | - |
| Weight (g) | 89.20 | 49.00 |
| Thickness | - | 11.2 |
| product details |
| Sensor | acceleration sensor, gyroscope, geomagnetic sensor, barometric altimeter, ambient light sensor, temperature sensor | Acceleration sensor, Gyroscope, Geomagnetic sensor, Barometric altimeter, Ambient light sensor |
| Compatible Device | Android and iOS | Android, iOS |
| Battery Type | 870mAh | - |
| Battery Life | 30 Days | 14 days |
| Notification | - | Yes |
| Notification Type | - | Smart Notification |
| Charge Time | - | 2 hours |
| Charger Type | - | Magnetic Charger |
| Stand By Time | - | 50 days |
| Other Features | - | Stainless steel middle frame, Glass-ceramic bottom shell, Dual-band & 6 satellite positioning systems |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Yes |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Call Features | Yes | Make Calls, Reject Calls |
| Third Party App Support | - | Yes |
| camera and display features |
| Display Resolution | 480 x 480 | 466x466 pixels |
| Display Size | 38mm | 36mm |
| Display Type | - | AMOLED |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Calorie Count | - | Yes |
| Alarm Clock | - | Yes |
| Other Fitness Features | - | 154 Sports Modes, Automatic Recognition, BioTracker™ 4.0 PPG biometric sensor |
| Other Watch Functions | - | Over 200 watch faces, Music Storage, OTA Update via Wi-Fi, Events Reminder, To Do List |
| platform and storage features |
| Operating System | - | Zepp OS 2.0 |
| Compatible Operating System | - | Android, iOS |
| audio and video features |
| Speaker | - | Yes |
| Microphone | - | Yes |
| Voice Control | - | Yes |
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