vs
4.9Health tracking4.9
Dimensions
Size comparison
Watch 4000C4
| Watch 4000 | C4 | Difference | |
|---|---|---|---|
| Case size | 46 mm | 51 mm | −5 mm |
| Thickness | 11 mm | 9.8 mm | +1.2 mm |
| Weight | 39 g | 45 g | −6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 4000 better than C4?
- Weight39 g vs 45 g+15%
Why is C4 better than Watch 4000?
- Battery life (smartwatch mode)6 days vs 10 days+67%
- Screen size1.65″ vs 2.01″+22%
- Thickness11 mm vs 9.8 mm+12%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 51 mm |
| Weight | 39 g | 45 g |
| Thickness | 11 mm | 9.8 mm |
| Case material | Stainless steel | — |
| Strap material | Kunststoff | — |
| Water resistance | — | 2 ATM |
| Colours | Black | — |
| Display | ||
| Screen size | 1.65″ | 2.01″ |
| Display technology | LCD | — |
| Panel | LCD | — |
| AMOLED / OLED display | No | — |
| Resolution (width) | — | 296 px |
| Resolution (height) | — | 240 px |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | 10 days |
| Battery capacity | 300 mAh | 300 mAh |
| Battery type | Li-Po | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2, accelerometer | — |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| Bluetooth | 5.3 | — |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Voice assistant | Yes | — |
| Platform | ||
| Works with | iOS, Android | Android, iOS |









