SUPOW(TM) Latest Metal Clasp Button Connector Accessory Press Stud Replacement for Fitbit Flex Wireless Sports Band Exercise Wristband Bracelet Armband (3 Pcs)

ECG Accurate Heart Rate
Advanced Calorie Tracking
Automatic Tracking

Pedometer：Can whenever and wherever possible to step，View the current training situation and remaining unfinished step number.
Sleep Monitoring：Intelligent monitoring to sleep at night, Up in the morning can see sleep last night
Bluetooth：smart wristband via Bluetooth to sync to APP, Energy consumption, sleep data at a glance.

This smart bracelet with OLED screen clearly displays health parameters including steps, calories, distance, time and sleep quality.
With silicone adjustable wristband, light weight feature, you can wear it comfortablely, such as running, climbing.
When you do exercise, it can record your sports data. When you sleep, it can monitor your sleep. It also can wake you up by vibrating gently.

Completely waterproof down to 210 Feet
LED display shows real-time progress & current time,track NikeFuel, calories burned & steps taken
Gain better insight with new ‘Win the Hour’ challenge & ‘Nike Sessions’