Dimensions
Size comparison
W03CS2
| W03 | CS2 | Difference | |
|---|---|---|---|
| Height | 43 mm | 43.8 mm | −0.8 mm |
| Width | 43 mm | 36.9 mm | +6.1 mm |
| Thickness | 12 mm | 10.5 mm | +1.5 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is W03 better than CS2?
W03 has no measurable advantages in this pair.
Why is CS2 better than W03?
- Battery capacity260 mAh vs 300 mAh+15%
- Thickness12 mm vs 10.5 mm+14%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 44 mm |
| Weight | — | 35 g |
| Thickness | 12 mm | 10.5 mm |
| Height | 43 mm | 43.8 mm |
| Width | 43 mm | 36.9 mm |
| Case material | Aluminium | Plastic / polymer |
| Lens / cover glass | Scratch-resistant glass | — |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Colours | Black, Blue, Pink | Black, Rose Gold, Silver |
| Display | ||
| Screen size | 1.7″ | 1.69″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | IPS LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 240 px | 240 px |
| Resolution (height) | 240 px | 240 px |
| Pixel density | 200 ppi | 201 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 260 mAh | 300 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Sensors | Accelerometer, gyro, heart rate | Accelerometer, heart rate |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5.1 | 5 |
| Smart features | ||
| Speaker | No | No |
| Platform | ||
| Operating system | Proprietary OS | Proprietary |
| Platform | Proprietary | Proprietary |
| Chipset | — | Realtek 8762C |









