Vidonn X5 IP67 OLED Bluetooth Smart Wrist Band Bracelet Sleep Track. Condition:New. Mobile terminal: Iphone 4/5/5s, ipod touch 5, ipad 3 etc, ios 6.0 above and some android 4.2, Bluetooth 4.0+ smart phones to synchronize data. PC terminal: Windows XP, Vista 7+. Standby time: 160 hours. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please consider you mind or not before buying.