vs
5.6Display8.1
5.0Health tracking5.0
4.7Sports & outdoor4.7
9.0Smart features9.6
5.9Build & durability5.5
Dimensions
Size comparison
Watch 2 (eSIM)Watch S4 Sport
| Watch 2 (eSIM) | Watch S4 Sport | Difference | |
|---|---|---|---|
| Height | 47.6 mm | 46.9 mm | +0.7 mm |
| Width | 46.6 mm | 46.9 mm | −0.3 mm |
| Thickness | 12.1 mm | 12.6 mm | −0.5 mm |
| Weight | 37 g | 49 g | −12 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 2 (eSIM) better than Watch S4 Sport?
- Weight37 g vs 49 g+32%
- Thickness12.1 mm vs 12.6 mm+4%
Why is Watch S4 Sport better than Watch 2 (eSIM)?
- Peak brightness1,000 nits vs 2,200 nits2.2×
- Battery capacity500 mAh vs 586 mAh+17%
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | 47 mm |
| Weight | 37 g | 49 g |
| Thickness | 12.1 mm | 12.6 mm |
| Height | 47.6 mm | 46.9 mm |
| Width | 46.6 mm | 46.9 mm |
| Sapphire crystal | — | Yes |
| Lens / cover glass | — | Sapphire crystal glass |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| 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 | 1,000 nits | 2,200 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 500 mAh | 586 mAh |
| Battery type | — | Li-Po |
| Wireless charging | No | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, gyro, barometer, compass, heart rate, SpO2 | Accelerometer, gyro, compass, barometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | 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 |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 32 GB | 32 GB |
| RAM | 2 GB | — |
| Platform | ||
| Operating system | ColorOS Watch 6.0 | HyperOS |
| Platform | Proprietary | Proprietary |
| Chipset | Qualcomm Snapdragon W5 Gen 1 | — |
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