Cowboycool Set Large L Replacement Bands with Clasps for Fitbit Flex Only /No Tracker/ Wireless Activity Bracelet Sport Wristband Fit Bit Flex Bracelet Sport Arm Band Armband (Black+Navy, L)

No charging required! Replaceable coin battery lasts up to six months
Tracks steps, distance, calories burned; monitors and analyzes sleep duration and patterns
Each Deluxe Kit includes one Smart Fit sensor with coin battery, 3 interchangeable color case inserts and 3 different size wristbands (S/M/L) in same color.

Track steps & speed & time & distance
Calculating Calories and fat burned
Monitor sleep quality and performance

50 days memory record
Time function: Calendar, time and date
2 alarm function + stopwatch function

Create Healthy Habits with the Healthy Habits System – makes Habit formation fun!
Tracks steps, distance, calories burned. Comfortable and easy to wear.
Monitor how well you sleep.