... Management(2) GPS Navigation(GPS+Compass)(3) Smartphone+Smart watch (with Android OS 2.2)(4) Security Monitoring (including ... have good guarantee & leading quality.Specification:GSM Multi-media Smartphone watch;1. Frequency: Quad-band GSM850/900, DCS1800, PCS1900; 2 ... talk time 300 minutes. Android watch/GPS WIFI Smartwatch,Smartphone,Android OS 2.2 smart watch (color: black/white/pink/red/coffee))