Dimensions
Size comparison
C4105 (2024)
| C4 | 105 (2024) | Difference | |
|---|---|---|---|
| Case size | 51 mm | 49.5 mm | +1.5 mm |
| Thickness | 9.8 mm | 14 mm | −4.2 mm |
| Weight | 45 g | 78 g | −32 g |
Drawn to the same scale from the official dimensions (front and side).
Why is C4 better than 105 (2024)?
- Weight45 g vs 77.5 g+72%
- Resolution (width)296 px vs 120 px2.5×
- Thickness9.8 mm vs 14 mm+43%
Why is 105 (2024) better than C4?
- Battery capacity300 mAh vs 1,000 mAh3.3×
Specifications
Side by side
| Design & durability | ||
| Case size | 51 mm | — |
| Weight | 45 g | 77.5 g |
| Thickness | 9.8 mm | 14 mm |
| Height | — | 115.5 mm |
| Width | — | 49.5 mm |
| Water resistance | 2 ATM | — |
| Colours | — | Black, Blue, Purple |
| Display | ||
| Screen size | 2.01″ | 2″ |
| Display technology | — | LCD |
| Panel | — | TFT LCD |
| AMOLED / OLED display | — | No |
| Resolution (width) | 296 px | 120 px |
| Resolution (height) | 240 px | 160 px |
| Pixel density | — | 100 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | — |
| Battery capacity | 300 mAh | 1,000 mAh |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sleep tracking | Yes | — |
| Sports & navigation | ||
| Built-in GPS | — | No |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | — | Yes |
| RAM | — | 0.004 GB |
| Platform | ||
| Operating system | — | RTOS OS |
| Platform | — | Proprietary |
| Works with | Android, iOS | — |
