Phone Function: Make phone directly from the A1 smart watch, including answering and dial-up.sim slot, single sim card (micro sim card) can be as a phone, support make calls by bluetooth or smart watch entertainment: mp3/mp4, camera. High sensitive capacitive touch screen, perfect match technology,1.54" tft hd lcd, resolution ratio: 240x240 pixel. Compatibility: All android and ios mobile phone and…