Fitbit Charge 2 HR Heart Rate Monitor Fitness Wristband Tracker.

Fitbit Charge 2, Simply download the Fitbit app to sync with a smartphone, which is available for iOS, Android, and select Windows devices. A charging cable is included. PurePulse Heart Rate. FeaturesAverage Heart Rate. You can also read text messages as well. I used this Fitbit for about a month, my wrist is tiny and it didn’t fit me right.