Dimensions
Size comparison
C28105
| C28 | 105 | Difference | |
|---|---|---|---|
| Height | 58.3 mm | 115.5 mm | −57.2 mm |
| Width | 46.1 mm | 49.5 mm | −3.4 mm |
| Thickness | 13.3 mm | 14 mm | −0.7 mm |
| Weight | 44 g | 78 g | −33 g |
Drawn to the same scale from the official dimensions (front and side).
Why is C28 better than 105?
- Weight44.5 g vs 77.5 g+74%
- Resolution (width)320 px vs 120 px2.7×
- Pixel density250 ppi vs 100 ppi2.5×
- Thickness13.3 mm vs 14 mm+5%
Why is 105 better than C28?
- Battery capacity410 mAh vs 1,000 mAh2.4×
Specifications
Side by side
| Design & durability | ||
| Case size | 58 mm | — |
| Weight | 44.5 g | 77.5 g |
| Thickness | 13.3 mm | 14 mm |
| Height | 58.3 mm | 115.5 mm |
| Width | 46.1 mm | 49.5 mm |
| Water resistance | 1 ATM | — |
| Ingress protection | — | IP54 |
| Water resistance (IPx) | — | IPx4 |
| Colours | Black, Green | Black, Blue, Purple |
| Display | ||
| Screen size | 2.02″ | 2″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 320 px | 120 px |
| Resolution (height) | 390 px | 160 px |
| Pixel density | 250 ppi | 100 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 410 mAh | 1,000 mAh |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sensors | Accelerometer, heart rate, SpO2, blood pressure | — |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Smart features | ||
| Speaker | Yes | Yes |
| RAM | — | 0.004 GB |
| Platform | ||
| Operating system | Proprietary OS | RTOS OS |
| Platform | Proprietary | Proprietary |
