| key specs |
| Strap Colour | Black, Green, Silver | Obsidian Black |
| Display Size | 44mm | 35mm |
| Compatible OS | Android | Android, iOS |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Ideal For | Unisex | - |
| Strap Material | - | Leather |
| general |
| Brand | Samsung | Huawei |
| Model | Galaxy Watch 4 (44mm) | GT 2 Pro ECG |
| Release date | August 11, 2021 | July 29, 2021 |
| Model Name | Galaxy Watch 4 | Watch GT 2 Pro ECG |
| Dial Shape | Round | Round |
| Size | Large | Regular |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | Yes | 5ATM |
| Water Resistance Depth | 5 ATM | 50 |
| Dial Material | Aluminium | Titanium |
| Ideal For | Unisex | - |
| Strap Colour | Black, Green, Silver | Obsidian Black |
| Dial Colour | Black, Green, Silver | - |
| Strap Material | - | Leather |
| dimensions |
| Width | 44.4 | 46.7 |
| Height | 43.3 | 46.7 |
| Thickness | 9.8 | 11.4 |
| Weight (g) | 30.30 | 52.00 |
| product details |
| Sensor | Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis), Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor | Accelerometer, gyroscope, geomagnetic sensor, optical heart rate sensor, ambient light sensor, barometric pressure sensor, and capacitive sensor |
| Compatible Device | Android | Android, iOS |
| Notification | Yes | Yes |
| Rechargeable Battery | Yes | Yes |
| Battery Life | - | 14 |
| Charger Type | - | Wireless |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.1 |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Other Connectivity Features | NFC,GPS,Glonass | - |
| Call Function | - | Yes |
| Messaging Support | - | Yes |
| platform and storage features |
| Operating System | One UI Watch 3 | - |
| Compatible Operating System | Android | Android, iOS |
| Number of Cores | dual-core | - |
| RAM | 1.5GB | - |
| Processor Name | Exynos W920 | Kirin A1 |
| Processor Speed | 1.18GHz | - |
| Internal Memory | 16GB | 4GB |
| camera and display features |
| Display Resolution | 450x450 | 454x454 |
| Display Size | 44mm | 35mm |
| Display Type | AMOLED | AMOLED |
| Scratch Resistant | Yes, Gorilla Glass DX | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | Yes |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Number of Buttons | 2 | 2 |
| Other Watch Functions | Heart rate, blood oxygen, SpO2 | ECG |
| Altimeter | - | Yes |
| Other Fitness Features | - | 100+ sports modes, Automatic activity tracker |
| audio and video features |
| Speaker | Yes | Yes |
| Gesture Control | - | Yes |
| Microphone | - | Yes |