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The Sanva Smart Ring is a subscription-free fitness tracker that monitors heart health, stress, and sleep. It has no screen or vibrations and offers multi-day battery life. It suits people who want discreet 24/7 tracking without ongoing fees. Compared to rivals like Oura, it lacks advanced features such as temperature sensing and detailed recovery metrics, but it covers the basics at a lower upfront cost.
In stockReturn policy
The Sanva Smart Ring tracks heart health, stress and sleep from a ring worn on the finger. It has no screen and does not buzz, and it tracks around the clock while you go about your day.
It has a multi-day battery and comes with a portable charging case for charging on the go. There are no monthly fees or renewals.
| Size | Circumference (mm) | Diameter (mm) |
|---|---|---|
| 7 | 55.4 | 17.6 |
| 8 | 57.2 | 18.2 |
| 9 | 59.1 | 18.8 |
| 10 | 62.1 | 19.8 |
| 11 | 64.0 | 20.4 |
| 12 | 66.0 | 21.0 |
| 13 | 67.9 | 21.6 |
Measurements as the supplier gives them; allow a little either way. The sizes in stock are the ones the buy box offers.
