1.All-Day tracking your sport data, such as calories, steps, walking distance to calculate your calories burned. Continuous, automatic, wrist-based heart rate tracking and blood pressure measurement without an uncomfortable chest strap. The Fitness tracker Opening the "GPS movement" mode to display the Running Route in the App.<br> 2.It can help you better understand your health and fitness. Automatically tracks how long and how well you sleep every day, you can also set a silent alarm to wake you up with a silent vibrating. Supports sweat, rain, and splashes. Swimming is not possible.<br> 3.Via a Bluetooth connection, the fitness tracker vibrates to alert you of your incoming notifications such as calls, emails, SMS and SNS (Facebook,Twitter, Instagram, WhatsApp, ect ). And if it is inconvenient to receive a call, press and hold for 3 seconds. Other functions such as an alarm clock and automatic attention to sitting are also provided to help improve daily lifestyle habits and daily health management.<br> 4.Equipped with a 155mAh lithium polymer battery, it can be used continuously for about 3-5 days with a single charge in normal use. Compatible models: Applicable to smartphones that support Bluetooth 4.0, IOS 8.0 / Android 4.4 or higher.<br> 5.With a color screen and large subtitles. Note: The screen is a point-and-touch operation, like the full touch-screen operation of friends to buy with caution.