Why is C20 Pro better than SW-181?
- Battery capacity380 mAh vs 200 mAh+90%
- Screen size1.81″ vs 1.7″+6%
Why is SW-181 better than C20 Pro?
SW-181 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 54 mm | — |
| Weight | — | 43 g |
| Thickness | 12.9 mm | — |
| Height | 54 mm | — |
| Width | 43 mm | — |
| Case material | — | Plastic / polymer |
| Strap material | — | Kunststoff, Kautschuk |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Colours | Gray, Orange | — |
| Display | ||
| Screen size | 1.81″ | 1.7″ |
| Display technology | LCD | — |
| Panel | TFT LCD | IPS |
| AMOLED / OLED display | No | No |
| Resolution (width) | 240 px | — |
| Resolution (height) | 286 px | — |
| Pixel density | 206 ppi | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery capacity | 380 mAh | 200 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, heart rate, SpO2, blood pressure | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | No | — |
| Connectivity | ||
| NFC payments | No | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5 | 4 |
| Smart features | ||
| Speaker | No | — |
| Platform | ||
| Operating system | Proprietary OS | Proprietär |
| Platform | Proprietary | Proprietary |
| Works with | — | iOS, Android |









