4.9Health tracking4.9
Why is Watch C3 better than Watch Free?
- Battery capacity350 mAh vs 230 mAh+52%
Why is Watch Free better than Watch C3?
- Water resistance2 ATM vs 5 ATM2.5×
- Battery life (smartwatch mode)10 days vs 14 days+40%
- Thickness11.8 mm vs 10.6 mm+11%
Specifications
Side by side
| Design & durability | ||
| Weight | — | 32.6 g |
| Thickness | 11.8 mm | 10.6 mm |
| Height | — | 46 mm |
| Width | — | 29.7 mm |
| Case material | Plastic / polymer | — |
| Lens / cover glass | Kunststoffglas | 2.5D-Glas Kristallglas |
| Strap material | Gummi, Nylon | — |
| Water resistance | 2 ATM | 5 ATM |
| Water rating (maker) | 2 ATM | 5 bar |
| Display | ||
| Screen size | 1.85″ | — |
| Display technology | — | AMOLED |
| Panel | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 240 px | — |
| Resolution (height) | 280 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 14 days |
| Battery capacity | 350 mAh | 230 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate, SpO2, ambient light |
| Connectivity | ||
| Bluetooth | 5.3 | 5 |
| Smart features | ||
| Music on the watch | Yes | — |
| Storage | 4 GB | — |
| Platform | ||
| Works with | — | iOS, Android |
