Watch-type heart rate monitor AT-520HR

LifeVit AT-520HR is an activity bracelet for 24-hour monitoring of steps, distance traveled, calories consumed, sleep and heart rate. Connected with LifeVit App for storage, management of health data and alerts. Heart rate Heart rate is the number of heart contractions or beats per unit of time. dream time Measurement of the user's total rest time. deep sleep Sleep phase that provides greater rest, in which there are no movements.