roduct name:IWO 9 GPS Screen size: 1.54 inch visual color screen / 240*240 pixels CPU: MTK2503 Bluetooth version: Bluetooth 3.0 & 4.0 Battery Specification: 380mAh polymer lithium battery System: Support AndroidOS 4.4 above & IOS 8.0 above Support Language: English, French, Spain, Polish, Portugues, Italy, German, Czech, Turkish, Russian, Arabic, Hebrew, Thai, Hindi Functions: Information Push: Synchronous incoming messages notification from Notification Center in your phone (Note: For iPhone, Message icon is not available due to IOS system restriction, all incoming messages will be displayed in Notification icon instead) Call Reminder: Make & Answer calls after connect Bluetooth with Smart Phone Mail list: Synchronous mobile phone address book Heart rate detection: Track your heart rate in real time Pedometer: Exercise, calorie consumption, mileage records Sedentary reminder: It's up to the sport, changing the unhealthy lifestyle Sleep monitoring: To record and analyze your sleep status objectively and scientifically. Bluetooth music player: Synchronous mobile music Bluetooth Camera: Remote control of mobile phone camera (This function need enable setting in the app.) Looking for mobile phone function: Prevent throw reminders GPS: supported, Please use the function when you are outside open space in order to receive GPS signals. Sport Mode: Walking, Running, Cycling, Climbing