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 management 3. Waterproof grade IP67. Web platform/ Mobile App/ SMS commands check. Fall alarm. Remove the alarm 4. GPS positioning accuracy: 5-15 meters (outdoor open sky). Battery capacity:1000mA. Standby Time:7 to 10 days 5. WIFI positioning accuracy: 15-100 meters (Under WIFI range). Working temperature: -20°C - +70°C. Operating humidity: 5% - 95% RH How To Configuration Your Watch Step 1 - Insert the SIM card After inserting the SIM, dial the SIM's number. If get through with no answer, the device works. Step 2 - Set APN Send the following command 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, MCC:460, MNC:00) Note: if apn information wrong, it didnt works Step 3 - Set Fall Alarm Send the following command by your phone: pw,123456,falldown,1,1# Set Ip (if you need integrate it into your server) Send the following command by your phone: pw,123456,ip,www.gps123.org,8888# Set to factory Send the following command 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 detection 2. Pill reminder, step counting and health management 3. Fall Alarm(Phonebook),Take Off Alarm 4. Voice/Vibration Mode Version B bands combination: South America, North America, Australia, Such As Brazil, USA, Canada, Mexico, etc. 4G-FDD:Band 1/2/3/4/5/7/8/12/20/28A 2G-GSM:Band 2/3/5/8 Colour:Black-Red Material:plastic Package Contents: 1 * GPS Tracking Watch Only 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.