Description:GV18 Smart watch phone Functions:1. Support micro SIM card and GPRS network. Support SIM phone calls and bluetooth phone calls.2. Phonebook syncing and message syncing.3. Storage extending. Up to 32 GB micro sd card.4. Other functions.Bluetooth， Messaging， BT Dialer， Calendar， Audio player， Video recorder， Image viewer， Video player， Camera，Quick Response， Pedometer， Calculator， Alarm， Anti Lost，Sleep Monitor， Smart Search， Sedentary Reminder， Call logs，Remote Notifier， Remote Capture， etc.Specifications:System: Android OSBand: GSM 850/900/1800/1900Screen Size: 1.54inchScreen Type: Capacitive touch screenScreen Resolution: 240x240pixelsBattery Capacity: 3.7V & 350mAhBattery Type: Lithium-ion polymer batteryShell Material: Plastic +leatherWatch Strap: Compatible 21cm standard strapWeight: 64gPanel Size: 42 x 39 x 13mm/1.65 x 1.54 x 0.51inchGeneralCamera/Picture resolution: 0.3MP， 640 x 480 pixels resolutionMIC: YesBluetooth: Bluetooth 3.0TF card extend: 32GBUSB interface: Micro USBNFC: SupportLanguage: English， French， Espanola， Polish， Portuguese， Italian， Deutsch， Dutch， Turkish， RussianPackage include:1 x Smart Watch1 x USB Charging Cable1 x English Manual