Xiaomi Mi Band Smart Bracelet for Xiaomi Mi4 M3 Miui Iphone 4s 5 5c 5s 6 6 Plus Samsung and Other Smart Phone with Android System 4.4 Smart Fitness Wearable Tracker Waterproof Wristband (xm-22) 1.100% Brand new , Original and high quality 2.Perfect for Mi3 Mi4 Redmi Note 4G and latest for iphone 4S for iphone 5 for iphone 5C for iphone 5S for iphone 6 4.7 3.The black contain tracker , and other color doesn't , please note it . 4. Tips : Irrespective of size codes , the band will fit Adult / teenager/children 5.Trademarked by Modern life. Sold exclusively by Modern life 6. Bluetooth real-time synchronization to APP: analysis of movement sleep data, providing health advice 7.The size can be adjusted according to the circumstance of individual wrist.