Note: For the product, it doesn't work in Japan and Korea. 4G LTE + 2G GSM GPS + Beidou + WIFI +LBS position ways Heart rate, blood pressure and temperature detection Pill reminder, step counting and health management Waterproof level: IPX7 Web platform/ Mobile App for location check SOS button for help/ Fall alarm/ Take-off alarm One clicks for a fast call Talking clock Low battery alarm Ringtone to find the bracelet GPSpositioningaccuracy10-50m(opensky) WIFIpositioningaccuracy100-500m(UnderWIFIrange LBSpositioningaccuracy:500~1000m GPSisonlycanusedforoutdoor,theGPSpositioningwillautomaticallychangetoLBS/WiFipositioningin indoorused. Q After SIM card installed, App shows Not enabled. A: 1. Please delete PIN code of sim card for this device. Check whether the SIM card in bracelet activate GPRS data plan. Make sure the bracelet is powered off when installing a SIM card. 2. after you insert the sim card to the bracelet , check if it can have a call to the watch; 3.If you can call the bracelet, then send SMS pw,123456,ts# to the bracelet, if there is a reply, the network positioning is normal, that is the problem of anp, and apn needs to be set. 3. If you cant make a call to bracelet, the device does not recognize the card, check if the sim card is inserted in the wrong direction, and whether its the order of inserting the sim card first and then turning it on.