I changed to a Garmin watch in the same price range to get rid of the Fitbit hard plastic band that hurt to wear. Also, the HR accuracy on the charge 4 does not live up to the reputation of the charge 2 or 3. It constantly read my hr as double, no matter what steps I followed from support.
https://www.amazon.com/Fitbit-Charge-Fitness-Tracker-Rosewood/dp/B0881M68L9

