Alston Allen Smart Watches, are a Multifunctional Watch that is made with High-end material with a rotating bezel, Bluetooth call, Health check. This SmartWatch is compatible with iOS 8.0+ & Android 4.0+. This SmartWatch has the customized Alston Allen Logo placed in three different sections, located on the bezel, crown button, as well as the watch band clasp. This Smart Phone Watch has a Unique rotatable bezel Integrated waterproof button and HD large screen. This SmartWatch has Bluetooth call information synchronization. Bluetooth connection to your phone, synchronization of incoming calls, synchronization of call records, phone book Bluetooth dialing, answer/reject, and synchronize information. This SmartWatch also supports multiple sport modes, indoor and outdoor, records detailed data. This SmartWatch has a Dive timing Luminous function. Luminous beads, 24-hour energy storage, can see the time in the dark. This SmartWatch also focuses on your health. It detects heart rate, blood pressure, blood oxygen & sleep.