Other Features :
Large AMOLED HD display, 148% larger display than traditional fitness trackers, easy to operate, can change face layout & design Fast charging, 10 minutes of charge supports 3 days of usage, 100% charge can last 14 days Detects blood oxygen levels, 24-hour heartrate monitoring, records sleeping patterns and gives professional sleep improvement suggestions, period-tracker calendar allows you to see your upcoming estimated fertile window Supports 10 professional workout modes, precisely records your performance, gives feedback during exercise based on your present goals Receive incoming calls & messages on the go, control your music from your wrist