Fitbit Charge 2 Color:Black 1 Designed with the most

1 Designed with the most durable glass ever in a smartphone and a surgical grade stainless steel band

MU-MIMO for simultaneous streaming of data to multiple devices

rechargeable HD smart security camera with audio

Whether your product instruction manual is lost

Hybrid IR filter

Fitbit Charge 2 Color:Black 1 Designed with the mostFitbit Charge 2. Make every beat count with a fitness wristband built with PurePulse heart rate, multi sport modes, guided breathing sessions & interchangeable bands. PurePulse Heart Rate: Get continuous, automatic, wrist based heart rate & simplified heart rate zones. Cardio Fitness Level: Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score. All Day Activity Tracking: Track