EFOSHM X15 Smart Watch,Bluetooth Watch Phone Mate for iOS Apple iPhone and Android Sumsung HTC Symbian BlackBerry Windows Smartphones. Big Advantage- Don't Need Install APP. (White) EFOSHM is USA Registered Brand. [ADVANTAGE] It doesn't need to install any APP. Pedometer:It is a good friend to tell your sports situation:how many steps you walk,how far you run,how many Calories you burn.Hey!Guy,it is good monitor for health.Remind you to take exercises when you keep sitting or still for some time. Compatiblle: It is compatible for IOS Andriod Symbian Blackberry OS Windows Phone. Dialer:Show received,not received,dialed phone number.Also,you could dial though this function directly.