Vivosmart 4 adds pulse ox sensor and ‘body battery’
Garmin has unveiled the Vivosmart 4, its latest fitness tracker, which adds new health features while retaining a slim design.
The most interesting new feature here is the pulse oximeter sensor, which tracks your blood oxygen saturation. The feature first popped up on the Fenix 5X Plus, where it’s used to track oxygen levels at higher altitudes. Garmin’s leveraging the same tech into a more mainstream use with the Vivosmart 4, which will give you readings through the day and during sleep.
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