Padgene DZ09 Bluetooth Smart Watch with Camera Watch Phone Install an unlocked Micro sim card after you open the back cover to make Phone calls, GSM bands 850/900/1800/1900MHz. Bluetooth Phone CallingIf you don't have a micro sim card, you can also make phone calls after you connect your watch to your Android smart phone via Bluetooth. HD displayHigh sensitive capacitive touch screen, perfect wearable technology sensitive screen allows you cooperating with your phone smoothly. CameraSelf-Timer, take photos by your smart watch or use smart watch control the phone camera. Sync APPssupport message push from Skype,Wechat,Twitter or Facebook; Other features: time,schedule,read and send SMS,Skip News, Sport health: Pedometer,sedentary remind,sleep monitoring etc. GSM 850 / 900 / 1800 / 1900 MHz, Single Micro SIM Card Bluetooth Dialer, Call Reminder, Bluetooth Phone Calling Bluetooth SMS / IM Message Notified 1.56&#034; TFT LCD Touch Screen 240*240 pixels 2.0M Camera Pedometer, Sleep Monitor, Sedentary Reminder CPU: MTK6260A 533MHz SIM Card: Single SIM Card (Micro SIM Card) Can be as a phone External memory: Support TF card up to 32GB Hand-writing: Support Battery: 380 mAh Talk Time: 3 Hours Standby Time: 180 Hours Support Gravity Sensor: Support