New, box has been opened.

• Track your activity, steps, calories, heart rate and distance all day. Record your daily activity.
• Track your heart rate changes in real time. Know more about your heart rate, adjust your lifestyle according to changes in a timely manner. Atomatically track your sleep, and record your deep sleep, light sleep and awake time. Accurate data analysis helps you better understand your sleep and improve sleep quality.
• Receive calls and messages on the go. Vibrate that will not disturb others.
• Compatible with iOS 8.0 // Android 4.4 and above. Supports Bluetooth 4.0.
• Not compatible with Windows systems, Laptops, WIFI and MP3s.