vs
6.2Display8.7
5.0Health tracking5.0
Why is Choice Watch better than smart 2.0 1.78?
- Screen size1.95″ vs 1.7″+15%
Why is smart 2.0 1.78 better than Choice Watch?
smart 2.0 1.78 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 50 mm | — |
| Thickness | 10.2 mm | — |
| Height | 49.7 mm | — |
| Width | 39.9 mm | — |
| Case material | Plastic / polymer | Stainless steel |
| Lens / cover glass | — | Mineralglas Mineralglas |
| Water resistance | 5 ATM | 5 ATM |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Black, White | — |
| Display | ||
| Screen size | 1.95″ | 1.7″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 410 px | — |
| Resolution (height) | 502 px | — |
| Pixel density | 332 ppi | — |
| Peak brightness | 550 nits | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery capacity | 300 mAh | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, heart rate, compass, SpO2 | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | — |
| Compass | Yes | — |
| Connectivity | ||
| NFC payments | No | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5.3 | 5 |
| Smart features | ||
| Speaker | Yes | — |
| Platform | ||
| Operating system | Proprietary OS | — |
| Platform | Proprietary | — |
| Works with | — | iOS, Android |









