MGCOOL Band 3 Smartband - BLACK US $14.99 (~AU $19.75) @ GearBest

Main Features:
● Perfect Personal Health Tracker: pedometer and sleeping monitor.
● Ultra-long Battery Life: it consumes less power and can generally standby for 10 - 30 days.
● Waterproof Design: IP68 waterproof standard, suitable to use at home, office and during outdoor activities.

Functions:
● Pedometer
● Sedentary reminder
● Sleeping monitor
● Alarm setting
● Heart rate monitor