Features:The smart bracelet support IOS7.0(and above)and Android4.3(and above)phone which with Bluetooth 4.0.
such as: Iphone 4s/5/5c/5s/ipad 3/ipad 4/ipad mini/ipod touch5 or above, Samsung Galaxy Grand 2 / Note 2 / Note 3 / S3 / S4 / S5, Sony Xperia VC / Z / Z1 / ZL, LG Nexus 4 / 5 , HTC one / M8 , Motorola Moto G / X ,etc.
The first time charging,please plug it into a wall charger to charge it for over 2 hours , and when it was not charged for some days, please plug it into wall charger too,because when the battery gets empty,PC(low drive) may be can not make it turn on.
Tracks steps, distance, calories burned and monitor how well you sleep.
Call reminder(you will never miss any incoming call).
Syncs via with iOS and Android(APP).
have function of water dispelling, can not be putted into water.

• The device is very comfortable to wear as it is made almost entirely out of silicone and is very smooth. Attach it to your wrist is very easy as everything just sort of snaps into place thanks to the stretchy silicone material
• Mutil Function: Calculate steps, Track walking distance, calories consumption and Monitor your Sleep Quality everyday; Reminder: Make a plan and reminder you each day; SMS and show Message content; Call ID: show your contact name and phone book; Vibrating Notice: lets you know when you have calls, texts, emails, and Anti-lost.
• You connect this directly to your computer or a USB device to charge the built-in battery. This is also how you can connect it to your computer and unload data
• Fitness Tracking Singly: The bluetooth may disconnect when your phone away from band, or when your phone screen lock. Please donn't worry, the Wristband can still track your steps or sleeping individually, and it will update the data to the App when connect with the phone again.
• Fit For: iphone 5S 6 6s Plus, iTouch5, ipad3, ipad4, ipad air, ipad mini etc IOS 7.0 or above system) Android 4.3 or above, Bluetooth 4.0. Not Fit For: Lenovo, TCL, Asus phone

The device is very comfortable to wear as it is made almost entirely out of silicone and is very smooth. Attach it to your wrist is very easy as everything just sort of snaps into place thanks to the stretchy silicone materialRanipobo