| key specs |
| Display Size | 49mm | - |
| Dial Shape | Rectangle | Round |
| Display Type | OLED Retina | - |
| Ideal For | Unisex | Unisex |
| Compatible OS | - | iOS, Android |
| general |
| Brand | Apple | Amazfit |
| Model | Watch Ultra | T-Rex |
| Release date | September 7, 2022 | January 8, 2020 |
| Model Name | Watch Ultra | Amazfit T-Rex |
| Dial Shape | Rectangle | Round |
| Size | Large | - |
| Touchscreen | Yes | Yes |
| Water Resistant | Yes | Yes |
| Water Resistance Depth | 40m | 50 metres |
| Usage | Fitness & Outdoor | - |
| Ideal For | Unisex | Unisex |
| product details |
| Sensor | Compass, Always-On Altimeter, third-gen optical heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor | Accelerometer, Heart Rate Sensor |
| Notification | Yes | - |
| Battery Type | Lithium Ion | - |
| Rechargeable Battery | Yes | - |
| Battery Life | - | 20 days |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Call Features | International Emergency Calling | - |
| Other Connectivity Features | Emergency SOS | - |
| Bluetooth Version | - | 5.0 |
| Messaging Support | - | Yes |
| Email Support | - | Yes |
| platform and storage features |
| Operating System | watchOS 9 | - |
| Compatible Operating System | - | iOS, Android |
| camera and display features |
| Display Size | 49mm | - |
| Display Type | OLED Retina | - |
| Backlight Display | Yes | - |
| Other Display Features | LTPO OLED Always-On Retina display | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | English |
| Other Fitness Features | Blood Oxgen Sensor, ECG sensor | - |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
| dimensions |
| Width | - | 47.7 |
| Height | - | 47.7 |
| Thickness | - | 13.5 |
| Weight (g) | - | 58.00 |