Willful SW323 Waterproof Fitness Tracker Heart Rate Monitor Watch Sports Wrist Pedometer Bracelet with Step Calorie Counter Sleep Monitor Alarm Clock Call/SMS Notice for iPhone Samsung IOS Android Sports Wristband:Track your all day activity for healthy life,such as heat rate,steps,distance traveled,calories burned,sleeping time and quality,sedentary remind and clock alarm vibration Being a good partner of your phone and providing convenience to your life:Display message/incoming call name/time and date,vibration remind for sms/webchat notification and alarm clock. APP Enabled Wristband:download the app and connect your phone with this band,you can synchronize and store your daily data to the app and set the target for sports High sensitive touch key and gesture sensor enable you to check and operate the smart band easily.High quality TPU band with special buckle design can keep the band stay stable and comfortable on your wrist Compatible with IOS and Android Phones: requires Android 4.3 or above, iOS 7.0 or above,Bluetooth 4.0 or above.Download APP by scanning the QR Code printed on the outbox or manual