vs
7.5Display8.1
5.0Health tracking5.0
8.0Sports & outdoor4.7
9.6Smart features9.6
6.4Build & durability5.5
Dimensions
Size comparison
Watch 3Watch S4 Sport
| Watch 3 | Watch S4 Sport | Difference | |
|---|---|---|---|
| Height | 46.1 mm | 46.9 mm | −0.8 mm |
| Width | 46.1 mm | 46.9 mm | −0.8 mm |
| Thickness | 13.8 mm | 12.6 mm | +1.2 mm |
| Weight | 36 g | 49 g | −13 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 3 better than Watch S4 Sport?
- Weight36 g vs 49 g+36%
Why is Watch S4 Sport better than Watch 3?
- Storage4 GB vs 32 GB8×
- Battery capacity505 mAh vs 586 mAh+16%
- Thickness13.8 mm vs 12.6 mm+10%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 47 mm |
| Weight | 36 g | 49 g |
| Thickness | 13.8 mm | 12.6 mm |
| Height | 46.1 mm | 46.9 mm |
| Width | 46.1 mm | 46.9 mm |
| Sapphire crystal | — | Yes |
| Lens / cover glass | — | Sapphire crystal glass |
| Water resistance | 5 ATM | 5 ATM |
| Colours | Black, Silver | Titanium |
| Display | ||
| Screen size | 1.43″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Pixel density | 326 ppi | 326 ppi |
| Peak brightness | — | 2,200 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 505 mAh | 586 mAh |
| Battery type | — | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Sensors | Accelerometer, gyro, heart rate, barometer, compass, altimeter, SpO2 | Accelerometer, gyro, compass, barometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | Yes |
| eSIM | Yes | Yes |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 4 GB | 32 GB |
| RAM | 0.1 GB | — |
| Platform | ||
| Operating system | Blue OS | HyperOS |
| Platform | Proprietary | Proprietary |
