https://www.ultrahuman.com/ring/?currency=usd
Price: $249
Description:
Measure your progress during the day with a body scan. Discover how HRV, HR and Body Temperature varies with lifestyle changes.
Find movement insights to help with your metabolism and longevity goals. Based on the data from motion sensors and heart rate sensors — Find out the lowest effort required to make the most gains.
Understand the impact of sleep quality and how various stages like REM / NREM affect your metabolism and vice-versa.