| key specs |
| Strap Colour | Infinite Black | Black, Green, Pink |
| Display Size | 36mm | - |
| Compatible OS | Android, iOS | Android, iOS |
| Dial Shape | Round | Rectangle |
| Display Type | AMOLED | - |
| Strap Material | - | Silicone |
| general |
| Brand | Amazfit | Amazfit |
| Model | GTR 4 Limited Edition | Bip U |
| Release date | April 26, 2023 | October 15, 2020 |
| Model Name | Amazfit GTR 4 Limited Edition | Bip U |
| Dial Shape | Round | Rectangle |
| Strap Colour | Infinite Black | Black, Green, Pink |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Water Resistant | 5ATM | 5 ATM |
| Usage | Health, Fitness | - |
| Strap Material | - | Silicone |
| Interchangeable Strap | - | Yes |
| Water Resistance Depth | - | 50 metres |
| Dial Material | - | Polycarbonate |
| Dial Colour | - | Black, Green, Pink |
| dimensions |
| Width | 46.5 | 35.5 |
| Height | 46.5 | 40.9 |
| Thickness | 11.2 | 11.4 |
| Weight (g) | 49.00 | 31.00 |
| product details |
| Sensor | Acceleration sensor, Gyroscope, Geomagnetic sensor, Barometric altimeter, Ambient light sensor | BioTracker 2 PPG Biological optical sensor, 6-axis acceleration sensor |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | - |
| Battery Life | 14 days | 9 days |
| Charge Time | 2 hours | 2 hours |
| Charger Type | Magnetic Charger | 2 Pogo Pin 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 | - |
| Bluetooth | Yes | Yes |
| Wi-Fi | Yes | Yes |
| GPS | Yes | - |
| Third Party App Support | Yes | - |
| Call Features | Make Calls, Reject Calls | - |
| Bluetooth Version | - | 5.0 |
| platform and storage features |
| Operating System | Zepp OS 2.0 | RTOS |
| Compatible Operating System | Android, iOS | Android, iOS |
| camera and display features |
| Display Resolution | 466x466 pixels | 320x302 |
| Display Size | 36mm | - |
| Display Type | AMOLED | - |
| Other Display Features | - | Anti-Fingerprint Coating, 2.5D Corning Gorilla Glass 3 |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Other Fitness Features | 154 Sports Modes, Automatic Recognition, BioTracker™ 4.0 PPG biometric sensor | 60 sports modes |
| Other Watch Functions | Over 200 watch faces, Music Storage, OTA Update via Wi-Fi, Events Reminder, To Do List | 24 hour heart rate monitoring, sleep quality monitoring, blood oxygen level sensor, menstrual cycle tracker |
| Compass | - | Yes |
| Language | - | English |
| Number of Buttons | - | 1 |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Voice Control | Yes | - |
| Other Multimedia Features | - | show notifications, control music, set alarms, remote control the phone’s camera |