KW19 Waterproof Wristband Smart Wrist Watch Heart

Hardware Specifications: Memory : RAM 128KB + ROM 256KB +4MB (SPI ROM) TF Card :Not support Display : 1.3 inch Colorful TFT; resolution: 240*240 pixel; Touch screen:Single touch screen BLE: Ver 4.0 Battery: 140mAh high-voltage Polymer battery; Standby Time (connected):about 5-7 days; Normal use time: about 2-3 days" Button:Power button Connector:Magnetic charger base Wifi/GPS/Mic/Speaker/Buzzer :No Blood pressure, blood oxygen: Yes Gravity sensor: DA260b Motor: Yes Heart Rate Sensor: Yes,