vs
4.2Display7.4
5.5Health tracking5.5
Why is Fit 21 better than Smart Band 10?
- Resolution (width)240 px vs 212 px+13%
Why is Smart Band 10 better than Fit 21?
- AMOLED / OLED displayNo · Fit 21: Yes
- Screen size1.54″ vs 1.72″+12%
- Thickness12 mm vs 11 mm+9%
- Battery capacity220 mAh vs 233 mAh+6%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 47 mm |
| Weight | — | 27 g |
| Thickness | 12 mm | 11 mm |
| Height | — | 48 mm |
| Width | — | 22.5 mm |
| Lens / cover glass | — | 2.5D-Glas |
| Water resistance | — | 5 ATM |
| Water rating (maker) | 1 m | 50 m / 5 bar / 5 ATM |
| Colours | Black | Black |
| Display | ||
| Screen size | 1.54″ | 1.72″ |
| Display technology | — | AMOLED |
| Panel | Farbdisplay | AMOLED |
| AMOLED / OLED display | No | Yes |
| Always-on display | — | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 212 px |
| Resolution (height) | 240 px | 520 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 9 days |
| Battery capacity | 220 mAh | 233 mAh |
| Battery type | Li-Ion | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Compass | — | Yes |
| Connectivity | ||
| Bluetooth | 5 | 5.4 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
