vs
4.9Health tracking4.9
8.0Sports & outdoor8.0
Dimensions
Size comparison
A3CMF Watch 3 Pro
| A3 | CMF Watch 3 Pro | Difference | |
|---|---|---|---|
| Case size | 45.2 mm | 47 mm | −1.8 mm |
| Thickness | 11.6 mm | 14.4 mm | −2.8 mm |
| Weight | 45 g | 51 g | −6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is A3 better than CMF Watch 3 Pro?
- Weight45 g vs 51 g+13%
- Thickness11.6 mm vs 14.4 mm+24%
Why is CMF Watch 3 Pro better than A3?
- Battery life (smartwatch mode)8 days vs 13 days+62%
- Screen size1.39″ vs 1.43″+3%
- Resolution (width)360 px vs 466 px+29%
- Battery capacity300 mAh vs 350 mAh+17%
Specifications
Side by side
| Design & durability | ||
| Case size | 45 mm | 47 mm |
| Weight | 45 g | 51 g |
| Thickness | 11.6 mm | 14.4 mm |
| Height | — | 47 mm |
| Width | — | 47 mm |
| Case material | — | Aluminium |
| Water resistance | 2 ATM | — |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Colours | — | Dark Grey, Light Grey |
| Display | ||
| Screen size | 1.39″ | 1.43″ |
| Display technology | — | AMOLED |
| Panel | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Resolution (width) | 360 px | 466 px |
| Resolution (height) | 360 px | 466 px |
| Pixel density | — | 326 ppi |
| Peak brightness | — | 650 nits |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 8 days | 13 days |
| Battery capacity | 300 mAh | 350 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | — | Accelerometer, gyro, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | — | 5.3 |
| Smart features | ||
| Calls from the wrist | Yes | Yes |
| Speaker | — | Yes |
| Platform | ||
| Works with | Android, iOS | Android, iOS |









