Parts Fitbit Charge HR Sensors

Fitbit Charge HR Sensors

Device Info

The Charge HR, released in early January 2015, is similar to the Charge, with an additional heart-rate monitor. The Charge HR has a textured band and comes in black, plum, blue, tangerine, pink, and teal colors.

The Charge HR has two band sizes. The small is model FB405BKS and the large is model FB405BKL.