Dimensions
Size comparison
Watch 2Watch 3
| Watch 2 | Watch 3 | Difference | |
|---|---|---|---|
| Height | 35.7 mm | 45 mm | −9.3 mm |
| Width | 25.8 mm | 37 mm | −11.2 mm |
| Thickness | 12.2 mm | 11.5 mm | +0.7 mm |
| Weight | 38 g | 40 g | −2 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 2 better than Watch 3?
- Peak brightness600 nits vs 500 nits+20%
- Weight38 g vs 40 g+5%
- Pixel density323 ppi vs 207 ppi+56%
- Resolution (width)320 px vs 240 px+33%
Why is Watch 3 better than Watch 2?
- Screen size1.4″ vs 1.8″+29%
- SpeakerNo · Watch 2: Yes
- Battery capacity315 mAh vs 340 mAh+8%
- Thickness12.2 mm vs 11.5 mm+6%
Specifications
Side by side
| Design & durability | ||
| Case size | 36 mm | 45 mm |
| Weight | 38 g | 40 g |
| Thickness | 12.2 mm | 11.5 mm |
| Height | 35.7 mm | 45 mm |
| Width | 25.8 mm | 37 mm |
| Case material | Plastic / polymer | Plastic / polymer |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Colours | Black | Black, Gray |
| Display | ||
| Screen size | 1.4″ | 1.8″ |
| Display technology | LCD | LCD |
| Panel | IPS LCD | IPS LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 320 px | 240 px |
| Resolution (height) | 320 px | 286 px |
| Pixel density | 323 ppi | 207 ppi |
| Peak brightness | 600 nits | 500 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 315 mAh | 340 mAh |
| Battery type | Li-Ion | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, heart rate, SpO2 | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5 | 5.3 |
| Smart features | ||
| Speaker | No | Yes |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
