Why is RS4 Plus better than Fit 21?
- AMOLED / OLED displayYes · Fit 21: No
- Screen size1.78″ vs 1.54″+16%
- Resolution (width)368 px vs 240 px+53%
- Thickness11 mm vs 12 mm+9%
- Battery capacity230 mAh vs 220 mAh+5%
Why is Fit 21 better than RS4 Plus?
Fit 21 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Weight | 49 g | — |
| Thickness | 11 mm | 12 mm |
| Strap material | Silikon | — |
| Water rating (maker) | — | 1 m |
| Colours | — | Black |
| Display | ||
| Screen size | 1.78″ | 1.54″ |
| Display technology | AMOLED | — |
| Panel | AMOLED | Farbdisplay |
| AMOLED / OLED display | Yes | No |
| Resolution (width) | 368 px | 240 px |
| Resolution (height) | 448 px | 240 px |
| Battery | ||
| Battery capacity | 230 mAh | 220 mAh |
| Battery type | Li-Po | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate | heart rate, accelerometer |
| Connectivity | ||
| Bluetooth | 5.1 | 5 |
| Platform | ||
| Works with | iOS | iOS, Android |
