4.1Health tracking7.4
Why is Smart Ring ONE better than Smart Ring?
Smart Ring ONE has no measurable advantages in this pair.
Why is Smart Ring better than Smart Ring ONE?
- Battery life (smartwatch mode)4 days vs 5 days+25%
Specifications
Side by side
| Design & durability | ||
| Water resistance | 5 ATM | 5 ATM |
| Water rating (maker) | 5 atm | 5 atm / 50 m |
| Colours | — | Black |
| Battery | ||
| Battery life (smartwatch mode) | 4 days | 5 days |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Skin temperature | — | Yes |
| HRV tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate, SpO2 |









