Fitness Tracker,L8star Smart Watch Heart Rate Activity Tracker with 1.3 inch IPS Color Screen Long Battery Smart Watch… Price: $13.66 (as of 11/30/2022 20:41 PST- Details)

Make sure this fitsby entering your model number.
Heart rate and sleep monitoring, it will measure your heart rate on every 1 or 2 or 6 or 12 hour automatically, clearly acknowledge your physical fitness status at whole day or week or month
Long battery life, charge 2 hours, standby 7 days, normal use 15 days