vs
4.9Health tracking4.9
2.3Build & durability5.1
Dimensions
Size comparison
C4Redmi Watch 5 Active
| C4 | Redmi Watch 5 Active | Difference | |
|---|---|---|---|
| Case size | 51 mm | 40.4 mm | +10.6 mm |
| Thickness | 9.8 mm | 11.4 mm | −1.6 mm |
| Weight | 45 g | 42 g | +3 g |
Drawn to the same scale from the official dimensions (front and side).
Why is C4 better than Redmi Watch 5 Active?
- Thickness9.8 mm vs 11.4 mm+16%
Why is Redmi Watch 5 Active better than C4?
- Battery life (smartwatch mode)10 days vs 18 days+80%
- Water resistance2 ATM vs 5 ATM2.5×
- Weight45 g vs 42.2 g+7%
- Battery capacity300 mAh vs 470 mAh+57%
- Resolution (width)296 px vs 320 px+8%
Specifications
Side by side
| Design & durability | ||
| Case size | 51 mm | 49 mm |
| Weight | 45 g | 42.2 g |
| Thickness | 9.8 mm | 11.4 mm |
| Height | — | 49.1 mm |
| Width | — | 40.4 mm |
| Case material | — | Aluminium |
| Strap material | — | TPU |
| Water resistance | 2 ATM | 5 ATM |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | — | Midnight Black, Matte Silver |
| Display | ||
| Screen size | 2.01″ | 2″ |
| Display technology | — | LCD |
| Panel | — | IPS LCD |
| AMOLED / OLED display | — | No |
| Touchscreen | — | Yes |
| Resolution (width) | 296 px | 320 px |
| Resolution (height) | 240 px | 385 px |
| Pixel density | — | 250 ppi |
| Peak brightness | — | 500 nits |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 18 days |
| Battery capacity | 300 mAh | 470 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | — | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | — | No |
| Satellite systems | — | GPS, GLONASS, BDS, QZSS |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | — | 5.3 |
| Smart features | ||
| Calls from the wrist | Yes | Yes |
| Speaker | — | Yes |
| Voice assistant | — | Yes |
| Platform | ||
| Operating system | — | HyperOS |
| Platform | — | Proprietary |
| Works with | Android, iOS | iOS, Android |
