"4G network universal + 2G GSM
Positioning method: GPS + Beidou global satellite + WIFI + LBS
Health: heart rate, blood pressure, temperature detection
Medication reminder, exercise step counting health management function
Waterproof grade IP67
Website platform/mobile app/SMS query location information
SOS one-key call for help
One-click quick call
voice timekeeping
low battery alarm
Ringtone Finder
fall alarm
remove alarm
alarm clock reminder
two-way talk" "Type A frequency band:
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
Type B frequency band:
FDD frequency band: Band 2/4/5/7/12/28A
GSM frequency band: Band 2/3/5/8
GPS positioning time: cold start 30sec (outdoor open sky)
Warm start 29sec (outdoor open sky)
Hot start 5sec (outdoor open sky)
GPS positioning accuracy: 5-15 meters (outdoor open sky)
WIFI positioning accuracy: 15-100 meters (with WIFI signal coverage)
Working temperature: -20℃ ~ +70℃
Working humidity: 5% ~ 95% RH
Product size: 65*42*20mm, 73g
Battery capacity: 1000mAh
Color: black red                                                  Package size:9.6*8.2*6.6cm,170g                                            Carton size: 52*30*19cm,40pcs/ctn,G.W:8kg" GPS+WIFI+LBS