Features: 1.Multi Purpose: Smart watch has various functions, which can be used not only for GPS positioning, but also for detecting the body temperature and blood pressure of the elderly. It is very multifunctional. 2.Two Way Call: GPS smart watch supports two way call, which is convenient to contact with family members, and has the functions of medicine taking reminder, exercise step counting, healthy management and so on. 3.Multifunctional: GPS watch supports SOS one button call for help, fast call, voice time, low battery alarm, etc. 4.Location Inquiry: GPS watch for elderly can inquire location information through website platform, mobile App and SMS. 5.Internet Support: Portable GPS watch supports 4G full internet, 2G GSM, Beidou global satellite, WIFI and LBS, and IP67 waterproof. specification:Item Type: GPS Smart Watch Material: ABS FDD Frequency Band: Band 1/3/5/7/8/20 TDD Frequency Band: Band 38/39/40/41 GSM Frequency Band: Band 2/3/5/8 GPS Positioning Time: 30sec from Cold Start (outdoor) Warm Start up: 29sec (outdoor) Start up: 5sec (outdoor) GPS Positioning Accuracy: 5-15m (outdoor) WIFI Positioning Accuracy: 15-100 Meters(Under the Condition of WIFI Signal Coverage) Below) Operating Temperature: -20-+70 Working Humidity: 5%-95%RH Type of Battery: Lithium Battery Battery Model: 803035 Battery Capacity: 1000mah (included) PackageList:1 xGPSSmart Watch2 x Screw1 xTweezers1 x Charging Line1 x Screwdriver1 x User Manual Note1. Shipment with built in battery. 2. Pay attention to applicable areas.