NeeCoo V3 Bluetooth 4.0 Smartwatches Heart Rate Monitor Smart Watch with Pedometer Sleep Monitor Music Wristband for Andriod/IOS

Main Features:
– Heart rate monitor: with optical sensor, it can test and record your heart rate
– Bluetooth 4.0: you can use it to listen to music and take photos, enjoy your leisure time
– Sleeping track: record your sleep quality and sleep time, so you can adjust some habits to improve your sleeping condition
– Lift your wrist, light the screen
– High capacity 380mAh Lithium-ion polymer battery, with 2-3 days using time and 5 days stand-by time, durable to use
– Removable strap, you can change a better one for it
– Life water-resistant, you cannot wear it to swim, dive or shower