FitBit charge HR or charge heart rate is an upgrade to FitBit charge. Pure Pulse lets you get simplified and continuous heart rate.
You can now track workouts, distance travelled, calories burnt, floors climbed. You can sync your android or apple device and get call and text notifications on this device as well which is a handy feature. Has a battery life of 5 days which is excellent. The design is superb and the device is lighter on your wrists which is a big plus for the fitness freaks.
For more details on this device one may go to their official site: https://fitbit.com/in/chargehr#features
Pros
The rich features.
Cons
The display, could be more graphic. And informative.
I rate this device a 4/5