: Designed to be worn on the skin for up to seven days, even in the shower.

While the Metria IH1 and related sensors were featured as "wearable health devices to watch," they are typically distributed through rather than standard consumer electronics stores.

: Collects over 25 data types, including calorie expenditure, activity levels, steps, and sleep.

: These devices are designed for remote patient monitoring, clinical trials, and population health management.

If you are looking for a high-accuracy wearable sensor for personal use that provides similar metrics (sleep, activity, and recovery), the following consumer-grade options are widely available: WHOOP Band Go to product viewer dialog for this item.