AUSUN Activity Tracker, 115HR Fitness Tracker with Step Counter Calorie Counter Pedometer, Waterproof Heart Rate Monitor Watch Smart Bracelet Big promotion at the end of the year, 61% OFF with code RYK8CIRB, Only $8.9 OLED Display & Slim structure: See your daily activity and time on 0.86 inch OLED Display screen. Heart Rate Monitor: Automatically monitor heart rate, keep you informed your body status and help you make suitable exercise plan Activity Track: Accurately tracks all-day activities like steps, distance, calories burned and sleep, helps you to keep fit day by day Notification Reminder: Gently vibrate to remind when you have incoming call, SMS and SNS, read notifications in your fitness tracker USB Plug Charge: Simply take the band off nearest the sensor, plug into a USB charger or PC, no cable needed.