Toprime Fitness Activity Tracker Track Steps Calorie Burned Sleep Quality Work with App Via Bluetooth for ios and Android Built in USB Charge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Multi Functions: tracks steps， walking distance， calories burnt， sleep quality. Also can be set alarm to remind of getting up， drinking or sedentariness.</li><li>OLED Display: 0.91 inch OLED screen allow you to check time， date， steps， calories， working distance， message， caller ID freely.</li><li>Wearable maximum length is 7.6 inches， wearable minimum length is 5.5 inches， the widest point length is 0.7 inches.</li><li>Compatibility: requires Android 4.4 or above， iOS 7.0 or above， Bluetooth 4.0 or above. Download APP "Toprime" from Apple Store or Google Play.</li><li>TPU material waterproof IP65， not afraid of washing hands/ doing housework/ walking under rain.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41zUSoMYylL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41EH28FNoZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61N4uYRSWSL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uchQD%2BoYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/411BqVgrWGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41vcbWTVyTL.jpg" noproxy>