The Reflex Active Series 23 allows you to have the ultimate smart watch experience! With this new series giving the use the freedom to make and receive calls directly from your wrist, keeping you connected and in touch at any given time and anywhere. Featuring a number of functionalities and with its sleek design, this is a great timepiece for those who are always on the go. Case & Display - Case Size - 38mm - Screen Size - 1.83" Full Touch - Strap - 20mm Compatibility - Bluetooth - 5.0 - Bluetooth Connected - 4 days. - Android - Version 5.0 and above - iOS - Version 9.0 and above - Reflex Active Red App Power - RAM 578 KM / ROM 128 MB - Charge Time - 3 hours - Standby Time - 10 days Features - Make & Receive Calls - Message Notifications - Step Counter - Cycle Tracking - Camera Control - Weather Updates - Sleep Tracking - Calorie Tracking - Watch Locator - GPS Connection - Multi Activity Tracking - Hydration Alerts - Music Control - Heart rate monitor - Breathing exercises - Sedentary reminders - Personalised photo dials - Water resistant: IP67