***100% GUARANTEED AUTHENTIC OR YOUR MONEY BACK!*** ~SEALED IN BOX~ Activity Tracker: Yes Battery Life: 24 Hour Battery Life *Based on usage Case Material: Stainless Steel Compatibility: Android 6.0+ (excluding Go edition) and iOS 10.0+ Connectivity: Bluetooth(R) Smart Enabled / 4.1 Low Energy, Wi-Fi 802.11 b/g/n Display Size: 1.19" Active Area Diameter Interchangeable: Yes Notifications: Yes Strap Material: Stainless Steel Touchscreen: Yes In the Box: Wireless Charger (USB type) / Quick Start