Samsung Galaxy Watch 4
- Screen 44mm (1.36 inch); 40mm (1.19 inch) Super AMOLED
- Battery life Around 40 hours
- Water resistance 5ATM+IP68
- Sensors Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor, Hall sensor
- Date August 2021
Specs
General
| Physical size | 44mm (44.4 x 43.3 x 9.8mm); 40mm (40.4 x 39.3 x 9.8mm) |
| Material | Aluminium |
| Charging | QI wireless charging |
| Battery | 44mm version (361 mAh); 40mm version (247 mAh) |
| Battery life | Around 40 hours |
| Water resistance | 5ATM+IP68 |
| Weight | 44mm version (30 grams); 40mm version (26 grams) |
| Display type | Circular Super AMOLED Full Color Always On Display Corning Gorilla DX+ |
| Display size | 44mm (1.36 inch); 40mm (1.19 inch) |
| Display resolution | 44mm (450 x 450 pixels); 40mm (396 x 396 pixels) |
| Color options | Silver, Black, Pink Gold |
Sensors
| Accelerometer | Yes |
| Barometric altimeter | Yes |
| Compass | No |
| Galvanic skin response | Yes |
| Geomagnetic | Yes |
| Gyroscope | Yes |
| Optical heart rate | Yes |
| Electrical heart rate | Yes |
| SpO2 | Yes |
| Temperature | No |
| GPS | Yes |
| GALILEO | Yes |
| GLONASS | Yes |
| QZSS | No |
| Beidou | Yes |
| Ambient light sensor | Yes |
| Vibration motor | Yes |
| Microphone | Yes |
| Speakers | Yes |
Health & activity tracking
| Steps | Yes |
| Distance | Yes |
| Calories burned | Yes |
| Sports tracking | Yes |
| Floors | Yes |
| Sleep | Yes |
| Heart rate | Yes |
| Stress | Yes |
| Blood oxygen | Yes |
| Respiration rate | No |
| UV exposure | No |
| Skin temperature | No |
| Hydration level | No |
| HRV | No |
| ECG | Yes |
| Calorie intake | No |
| Blood pressure | Yes |
| Glucose | No |
Daily smart features
| Smartphone notifications | Yes |
| Smartphone music control | Yes |
| On-board music storage | Yes |
| Connected pay | Yes |
| Cellular | Optional |
| Connectivity | LTE, Bluetooth 5.0, Wi-Fi 802.11 a/b/g/n 2.4+5GHz |
| Operating system | Wear OS 3.0 Powered by Samsung |
| Memory | 1.5GB RAM + 16GB Internal Memory |
| Processor | Exynos W920 Dual Core 1.18GHz |
Disclaimer Note
These technical specs are correct to the best of our knowledge at the time of publishing.
