The Xiaomi Mi Band 2 is very affordable, despite having a heart rate sensor, sleep tracking, water resistance (IP67) and very long battery life.
Features:
0.42inch OLED display screen with touchpad
Heart rate monitor
Passometer,Fitness Tracker,Sleep Tracker,Message Reminder,Call Reminder
Water resistant (IP67)
20-day standby power
Sleep-cycle smart alarm
With a Dialog II 4.0 bluetooth chip, ADI sensor
Running MIUI Android 4.4 and above versions; For iphone 4s/5/5s/6/plus ios 7.0 and above
Unlock your Mi phone without a password
Stylish band options (incl. wrap-around and leather)
Get one here:
Aliexpress: http://s.click.aliexpress.com/e/qJeQRJ2
Gearbest: http://www.gearbest.com/smart-watches/pp_362705.html?vip=1164000
Bangood: https://www.banggood.com/Original-Xiaomi-Miband-2-Heart-Rate-Monitor-Bluetooth-Smart-Bracelet-p-1057324.html?p=3P02019852698201704I
