The main difference with Quad Phone watches and other smart phones is Quad Band Watches they are made to work with 4 bands:GSM 850/900/1800/1900 It’s a Mobile Phone.
Quad Band Watch Phone
The main difference with Quad Phone watches and other smart phones is Quad Band Watches they are made to work with 4 bands:GSM 850/900/1800/1900 It’s a Mobile Phone.