Smartband K18 Waterproof 0.66" Heart Rate Monitor Sport Bracelet Fitness Tracker Smart Reminder Small palm size as 146

Small palm size as 146 x 78

make it not only an alarm clock

Balance the leg muscles

The 3 positioning holes on the strap allows for different size of tube

4 x Remote Controler

Smartband K18 Waterproof 0.66" Heart Rate Monitor Sport Bracelet Fitness Tracker Smart Reminder Small palm size as 146Product Features: Perfect Smartphone Companion 24 Hour Real Time Heart Rate Monitoring It is the basic function of heart rate monitoring device, to monitor data for 24 hours everyday. You can make a clear understanding of your own heart rate and check your health situation anytime & anywhere. IP68 Waterproof Performance Compared with other smart bracelet, its IP68 waterproof rating can completely resist raining, showering. Even we don't have to take