vs
4.2Display7.9
5.5Health tracking5.5
Why is Fit 21 better than Watch Fit Special Edition?
Fit 21 has no measurable advantages in this pair.
Why is Watch Fit Special Edition better than Fit 21?
- AMOLED / OLED displayNo · Fit 21: Yes
- Resolution (width)240 px vs 456 px+90%
- Screen size1.54″ vs 1.64″+6%
- Thickness12 mm vs 10.7 mm+12%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 46 mm |
| Weight | — | 21 g |
| Thickness | 12 mm | 10.7 mm |
| Case material | — | Plastic / polymer |
| Strap material | — | Silikon |
| Water resistance | — | 5 ATM |
| Water rating (maker) | 1 m | 50 m / 5 bar / 5 ATM |
| Colours | Black | Black |
| Display | ||
| Screen size | 1.54″ | 1.64″ |
| Display technology | — | AMOLED |
| Panel | Farbdisplay | AMOLED |
| AMOLED / OLED display | No | Yes |
| Always-on display | — | Yes |
| Resolution (width) | 240 px | 456 px |
| Resolution (height) | 240 px | 280 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 6 days |
| Battery capacity | 220 mAh | — |
| Battery type | Li-Ion | — |
| Wireless charging | — | Yes |
| Charging | — | kabellos, magnetische Ladeschale |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer | heart rate, SpO2, accelerometer, ambient light |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| Bluetooth | 5 | 5.2 |
| Smart features | ||
| Music on the watch | — | Yes |
| Storage | — | 4 GB |
| Platform | ||
| Operating system | — | Harmony OS |
| Platform | — | HarmonyOS |
| Works with | iOS, Android | iOS, Android |








