Armani Touchscreen Smartwatch Collection|Unisex Smart Watch on Black Leather |Activity Tracker: Yes|Battery Life: 24-48 Hours *Based on usuage|Rechargeable Battery|Compatibility: Android OS 4.4+, iPhone 5/iOS 8.2+|Connectivity: Bluetooth® Smart Enabled / 4.1 Low Energy|Heart Rate: No|Sleep Monitor: No|Interchangeable: Yes|Notifications: Yes|Touchscreen: Yes|ART5003