Dimensions
Size comparison
C28BT101
| C28 | BT101 | Difference | |
|---|---|---|---|
| Height | 58.3 mm | 58.3 mm | = |
| Width | 46.1 mm | 46.1 mm | = |
| Thickness | 13.3 mm | 13.3 mm | = |
Drawn to the same scale from the official dimensions (front and side).
Why is C28 better than BT101?
C28 has no measurable advantages in this pair.
Why is BT101 better than C28?
BT101 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 58 mm | 58 mm |
| Weight | 44.5 g | — |
| Thickness | 13.3 mm | 13.3 mm |
| Height | 58.3 mm | 58.3 mm |
| Width | 46.1 mm | 46.1 mm |
| Lens / cover glass | — | Tempered glass |
| Strap material | — | Silikon |
| Water resistance | 1 ATM | 1 ATM |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Black, Green | Black |
| Display | ||
| Screen size | 2.02″ | 2.02″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 320 px | 320 px |
| Resolution (height) | 390 px | 390 px |
| Pixel density | 250 ppi | 250 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 7 days |
| Battery capacity | 410 mAh | 410 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, heart rate, SpO2, blood pressure | Accelerometer, heart rate, SpO2, blood pressure, barometer, compass |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | — | 5.3 |
| Smart features | ||
| Speaker | Yes | Yes |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
| Works with | — | iOS, Android |
