Dimensions
Size comparison
C21DG Ares
| C21 | DG Ares | Difference | |
|---|---|---|---|
| Height | 46.5 mm | 45.9 mm | +0.6 mm |
| Width | 46.5 mm | 45.9 mm | +0.6 mm |
| Thickness | 13 mm | 10.3 mm | +2.7 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is C21 better than DG Ares?
C21 has no measurable advantages in this pair.
Why is DG Ares better than C21?
- Thickness13 mm vs 10.3 mm+26%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | — | 47 g |
| Thickness | 13 mm | 10.3 mm |
| Height | 46.5 mm | 45.9 mm |
| Width | 46.5 mm | 45.9 mm |
| Case material | — | Plastic / polymer |
| Lens / cover glass | Corning Gorilla Glass | — |
| Water resistance | — | 3 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Colours | Black, Silver | Green, Rose Gold, Black |
| Display | ||
| Screen size | 1.32″ | 1.32″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | IPS LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 360 px | 360 px |
| Resolution (height) | 360 px | 360 px |
| Pixel density | 386 ppi | 386 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 300 mAh | 300 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Sensors | Accelerometer, heart rate, SpO2, blood pressure | Accelerometer, heart rate |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5 | 5 |
| Smart features | ||
| Speaker | No | No |
| Platform | ||
| Operating system | Proprietary OS | Proprietary |
| Platform | Proprietary | Proprietary |
| Chipset | — | Realtek 8762C |









