ZeFit 4: MyKronoz connected watch and activity tracker
ZeFit on the App Store
C2D JOY Classic Nylon Weave Band Compatible with Garmin Garmin vivofit 4 Activity Tracker Bands Replacement Accessory with Metal Case for Women Men - Small (Beige)
MyKronoz ZeFit 4 HR Smart Watch/Fitness Tracker. Bluetooth | eBay
ZeFit 4: MyKronoz connected watch and activity tracker
Activity tracker with color touchscreen and smartphone notifications - ZeFit4 – MyKronoz