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DB99 model. Amoled screen. 190 degree rotating camera. Video call. Android 8.1 system. GPS positioning. 1200 large battery. Display 2.02 inches. Resolution 368*448. Rear camera 200W Pixel. Wifi Support WIFI Set sum WiFi join WiFi Signal 2.4 GHz. FM. Data link. Bluetooth Bluetooth 4.2. Motor Have. GPS Have. NFC Have. Gravitysensor Triaxial sensor. Gyroscope Not have. Heart rate blood pressure Have. Hall switch Not have. Proximity sensor Not have. On/off key 0NE PCS. Encoder 0NE PCS. Phone. OS Android 8.1. UI. Language. Function introduction IP67 waterproof, HD camera, SOS one-click SOS, micro chat, class mode, two-way call, photography, video call, AI robot, Alipay, alarm clock, class schedule, stranger call rejection, application market download, electronic fence, real-time positioning, etc. Function introduction Android system, multiple positioning gps Beidou wifi base station positioning), wechat, Bluetooth. DB99 model. Amoled screen. 190 degree rotating camera. Video call. Android 8