| key specs |
| Dial Shape | Rectangle | Rectangle |
| Strap Colour | - | Black |
| Display Size | - | 46mm |
| Compatible OS | - | Android |
| Strap Material | - | Rubber |
| Display Type | - | AMOLED |
| Ideal For | - | Unisex |
| general |
| Brand | Amazfit | Oppo |
| Model | GTS 4 | Watch ECG Edition |
| Release date | September 1, 2022 | September 25, 2020 |
| Dial Shape | Rectangle | Rectangle |
| Size | Regular | Large |
| Touchscreen | Yes | Yes |
| Water Resistant | 5ATM | Yes |
| Model Name | - | Watch ECG Edition |
| Strap Material | - | Rubber |
| Interchangeable Strap | - | Yes |
| Water Resistance Depth | - | 5ATM. IPX8 |
| Ideal For | - | Unisex |
| Strap Colour | - | Black |
| Dial Colour | - | Black |
| dimensions |
| Width | 42.7mm | - |
| Height | 36.5mm | - |
| Thickness | 9.9mm | - |
| Weight (g) | 27.00 | 45.50 |
| product details |
| Sensor | BioTracker 4.0 PPG, Acceleration sensor, Gyroscope, Geomagnetic sensor, Barometric altimeter, Ambient light sensor | Tri-axial acceleration sensor, Gyroscope, Geomagnetic, Barometric, Optical heartbeat sensor, Capacitance sensor, Ambient light sensor, ECG |
| Battery Life | 8 days | 40 hours |
| Charge Time | 2 hours | - |
| Charger Type | Magnetic Charger | - |
| Notification | - | Yes |
| Stand By Time | - | 21 days |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | v5.0 | 4.2 |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Third Party App Support | Yes | Yes |
| Call Features | Make Calls, Reject Calls | Yes |
| Messaging Support | - | Yes |
| platform and storage features |
| Operating System | Zepp OS 2.0 | ColorOS |
| Compatible Operating System | - | Android |
| Number of Cores | - | quad-core |
| RAM | - | 1GB |
| Processor Name | - | Qualcomm Snapdragon Wear 2500 + Apollo 3 co-processor |
| Internal Memory | - | 8000 |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Other Fitness Features | Over 150 Sports Modes, Automatic Recognition | Fitness Run, 5-Min Workouts, Fat Burn Run, Outdoor Walk, Outdoor Cycling, Swimming, Heart rate monitoring, Sleep monitoring, Get Up Reminder, Guided breathing exercises |
| Calorie Count | - | Yes |
| Compass | - | Yes |
| Calendar | - | Yes |
| Alarm Clock | - | Yes |
| Date & Time Display | - | Yes |
| Number of Buttons | - | 2 |
| camera and display features |
| Display Resolution | - | 402x476 |
| Display Size | - | 46mm |
| Display Type | - | AMOLED |