1. One click SOS button for help. One clicks for a fast cal. Low battery alarm. Ringtone to find the bracelet,Talking clock. This is a high-precision chip SOS device. The sensor we use is the best material.2. Network: 4G LTE + 2G GSM, Working Days:5-6 Days (Typical). Positioning method: GPS + Beidou global satellite + WIFI + LBS. Health: Heart rate, blood pressure and temperature detection. Pill reminder, step counting and health management3. Waterproof grade IP67. Web platform/ Mobile App/ SMS commands check. Fall alarm. Remove the alarm4. GPS positioning accuracy: 5-15 meters (outdoor open ). Battery capacity:1000mA. Standby Time:7 to 10 days5. WIFI positioning accuracy: 15-100 meters (Under WIFI range). Working temperature: -20C - +70C. Operating humidity: 5% - 95% RHHow To Configuration Your WatchStep 1 - Insert the SIM cardAfter inserting the SIM, dial the SIM's number.If get through with no answer, the device works. - Set APNSend the following by you phone:pw,123456,apn,apndata,username,user password,network code#Eg: pw,123456,apn,cmnet,cm,pd,46000#(cmnet, user name:cm, password:pd, :460, MNC:00)Note: if apn information wrong, it didnt worksStep 3 - Set Fall AlarmSend the following by your phone:pw,123456,falldown,1,1#Set Ip (if you need integrate it into your server)Send the following by your phone:pw,123456,ip,.gps123.,8888#Set to factorySend the following by your phone:pw,123456,reset#Notice:All commands be correct forms & don't go to next step before receiving reply from the device.Operating:1. Heart rate, blood pressure and temperature detection2. Pill reminder, step counting and health management3. Fall Alarm(Phonebook), Alarm4. Voice/Vibration ModeVersion B bands combination:South America, North America, Australia, Such As Brazil, USA, Canada, Mexico, etc.4G-FDD:Band 1/2/3/4/5/7/8/12/20/28A2G-GSM:Band 2/3/5/8Colour:Black-RedMaterial:plasticPackage Contents:1 * GPS WatchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.