vs
3.1Display4.1
5.0Health tracking5.0
Dimensions
Size comparison
CS3FW55 Aurum Pro
| CS3 | FW55 Aurum Pro | Difference | |
|---|---|---|---|
| Height | 43.9 mm | 255 mm | −211.1 mm |
| Width | 35.4 mm | 38 mm | −2.6 mm |
| Thickness | 11.3 mm | 10 mm | +1.3 mm |
| Weight | 38 g | 46 g | −8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is CS3 better than FW55 Aurum Pro?
- Weight38 g vs 46 g+21%
- Battery capacity235 mAh vs 230 mAh+2%
Why is FW55 Aurum Pro better than CS3?
- Built-in GPSNo · CS3: Yes
- Thickness11.3 mm vs 10 mm+13%
Specifications
Side by side
| Design & durability | ||
| Case size | 44 mm | — |
| Weight | 38 g | 46 g |
| Thickness | 11.3 mm | 10 mm |
| Height | 43.9 mm | 255 mm |
| Width | 35.4 mm | 38 mm |
| Case material | Plastic / polymer | — |
| Strap material | — | Silikon |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Colours | Black, Pink, Green, Purple, Blue | — |
| Display | ||
| Screen size | 1.69″ | 1.7″ |
| Display technology | LCD | — |
| Panel | IPS LCD | IPS |
| AMOLED / OLED display | No | No |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 240 px |
| Resolution (height) | 280 px | 280 px |
| Pixel density | 218 ppi | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery life (smartwatch mode) | — | 6 days |
| Battery capacity | 235 mAh | 230 mAh |
| Battery type | Li-Ion | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, heart rate, SpO2 | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | No | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| NFC payments | No | — |
| LTE (cellular) | No | No |
| eSIM | No | — |
| Bluetooth | 5.1 | — |
| Smart features | ||
| Speaker | No | — |
| Platform | ||
| Operating system | Proprietary | — |
| Platform | Proprietary | — |
| Chipset | Realtek 8762DK | — |
