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- 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 ). Battery capacity:1000mA. Standby Time:7 to 10 days 5. WIFI positioning accuracy: 15-100 meters (Under WIFI range). Working temperature: -20C - +70C. Operating humidity: 5% - 95% RH 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 GPS positioning accuracy:10-50m (open ) WIFI positioning accuracy:100-500m(Under WIFI range) LBS positioning accuracy: 500-1000m GPS is only can used for outdoor, the GPS positioning automatically change to LBS/WiFi positioning in indoor used. Color: As Shown Material: plastic Package Contents: 1 x Smart Watch Bracelet 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.