Pure pulse continuous, automatic wrist-based heart rate tracking to better measure calorie burn all day
Maximize your workouts using simplified heart rate zones (fat burn, cardio and peak)
See call, text & calendar notifications on the old display; automatically track how long and how well you sleep and wake with a silent vibrating alarm
A larger, more stylish design. The authentic Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Small (US Version), 1 Count is constructed of 100% polyester with a mesh back. It has a breathable, wicking fabric that keeps you cool and dry.
Get a better understanding of your fitness level and see how you can improve over time with a personalized cardio fitness score; use connected GPs during run mode to see real-time stats like pace and distance on your wrist
Track all-day activity like steps, distance, calories burned, floors climbed and active minutes; find moments of calm throughout your day with personalized guided breathing sessions based on your heart rate, like all heart rate tracking technologies, accuracy are affected by physiologic, location of device, and different movements.
This is a official online store for Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Small (US Version), 1 Count products. Get official player products from the official online store of the Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Small (US Version), 1 Count. Fitbit Charge 2 Heart Rate + Fitness Wristband, Black, Small (US Version), 1 Count is available in a wide variety of sizes and colors.
Synchronize stats wirelessly & automatically to computers and 200 plus leading iOS, android and windows devices.
Operating temperature: 14 degree to 113 degree Fahrenheit, maximum operating altitude: 30,000 feet
The minimum and maximum circumference range between 140 – 170 millimeters
