vs
3.9Display5.0
5.0Health tracking5.0
3.9Smart features4.8
Dimensions
Size comparison
U1CMF Watch 3 Pro
| U1 | CMF Watch 3 Pro | Difference | |
|---|---|---|---|
| Height | 49.8 mm | 47 mm | +2.8 mm |
| Width | 42.4 mm | 47 mm | −4.6 mm |
| Thickness | 11.4 mm | 14.4 mm | −3 mm |
| Weight | 44 g | 51 g | −7 g |
Drawn to the same scale from the official dimensions (front and side).
Why is U1 better than CMF Watch 3 Pro?
- Screen size1.93″ vs 1.43″+35%
- Weight43.8 g vs 51 g+16%
- Thickness11.4 mm vs 14.4 mm+26%
Why is CMF Watch 3 Pro better than U1?
- Built-in GPSNo · U1: Yes
- AMOLED / OLED displayNo · U1: Yes
- Resolution (width)240 px vs 466 px+94%
- Pixel density194 ppi vs 326 ppi+68%
- Battery capacity300 mAh vs 350 mAh+17%
Specifications
Side by side
| Design & durability | ||
| Case size | 50 mm | 47 mm |
| Weight | 43.8 g | 51 g |
| Thickness | 11.4 mm | 14.4 mm |
| Height | 49.8 mm | 47 mm |
| Width | 42.4 mm | 47 mm |
| Case material | — | Aluminium |
| Water resistance | 1 ATM | — |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Colours | Black, Pink | Dark Grey, Light Grey |
| Display | ||
| Screen size | 1.93″ | 1.43″ |
| Display technology | LCD | AMOLED |
| Panel | TFT LCD | AMOLED |
| AMOLED / OLED display | No | Yes |
| Resolution (width) | 240 px | 466 px |
| Resolution (height) | 288 px | 466 px |
| Pixel density | 194 ppi | 326 ppi |
| Peak brightness | — | 650 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 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 |
| Sensors | Accelerometer, gyro, heart rate, SpO2 | Accelerometer, gyro, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | No | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5.4 | 5.3 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Speaker | Yes | Yes |
| Platform | ||
| Operating system | Proprietary OS | — |
| Platform | Proprietary | — |
| Works with | — | Android, iOS |
