5.5Health tracking5.5
Dimensions
Size comparison
AirWatch Fit 4
| Air | Watch Fit 4 | Difference | |
|---|---|---|---|
| Case size | 34.9 mm | 38 mm | −3.1 mm |
| Thickness | 8.3 mm | 9.5 mm | −1.2 mm |
| Weight | 12 g | 27 g | −15 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Air better than Watch Fit 4?
- Weight12 g vs 27 g2.2×
- Thickness8.3 mm vs 9.5 mm+14%
Why is Watch Fit 4 better than Air?
- Battery life (smartwatch mode)7 days vs 10 days+43%
Specifications
Side by side
| Design & durability | ||
| Case size | 35 mm | 43 mm |
| Weight | 12 g | 27 g |
| Thickness | 8.3 mm | 9.5 mm |
| Height | — | 43 mm |
| Width | — | 38 mm |
| Case material | — | Aluminium |
| Water resistance | — | 5 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Colours | — | Black, Silver |
| Display | ||
| Screen size | — | 1.82″ |
| Display technology | — | AMOLED |
| Panel | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | — | 408 px |
| Resolution (height) | — | 480 px |
| Pixel density | — | 347 ppi |
| Peak brightness | — | 2,000 nits |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | 10 days |
| Battery capacity | — | 400 mAh |
| Battery type | — | Li-Ion |
| Wireless charging | — | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | — | Accelerometer, gyro, heart rate, SpO2, compass, barometer |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | — | Yes |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | 5 | 5.2 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Speaker | — | Yes |
| Music on the watch | — | Yes |
| Platform | ||
| Works with | Android, iOS | Android, iOS |
