vs
3.8Display6.6
3.9Smart features4.8
Why is U3 better than Redmi Watch 6 Active?
U3 has no measurable advantages in this pair.
Why is Redmi Watch 6 Active better than U3?
- AMOLED / OLED displayNo · U3: Yes
- Resolution (width)240 px vs 390 px+62%
- Pixel density203 ppi vs 322 ppi+59%
- Battery capacity300 mAh vs 470 mAh+57%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 44 mm |
| Weight | — | 26 g |
| Thickness | — | 10 mm |
| Height | — | 44.5 mm |
| Width | — | 39.4 mm |
| Case material | — | Aluminium |
| Strap material | — | TPU |
| Water resistance | — | 5 ATM |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Black, Silver, Pink | Black, Silver, Rose Gold |
| Display | ||
| Screen size | 1.83″ | 1.85″ |
| Display technology | LCD | AMOLED |
| Panel | TFT | AMOLED |
| AMOLED / OLED display | No | Yes |
| Always-on display | — | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 390 px |
| Resolution (height) | 284 px | 450 px |
| Pixel density | 203 ppi | 322 ppi |
| Peak brightness | — | 1,200 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 12 days |
| Battery capacity | 300 mAh | 470 mAh |
| Battery type | — | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, heart rate | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Satellite systems | — | GPS, GLONASS, 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 | HyperOS |
| Platform | Proprietary | Proprietary |
| Works with | — | iOS, Android |
