Opta SW-015 Heart Rate Monitor Smart Watch (Silver)
Starts from 40.77
Material: Metal
It has USB slot, making it convenient for charging anytime and anywhere
Support Smart vibration reminder of SMS, incoming calls or QQ/we chat messages
It has multiple functions, pedometer/calorie consumption/sedentary reminder/ remote photographing
It has the Bluetooth anti-lost function after the watch is connected with the app of your Smartphone, once the distance between the watch and app exceed a limitation
It has app for both iPhone and android phones