Republic Wireless

Had it for over a year now. Works fine on WIFI if the connection is good otherwise it switches to the sprint network. My only complaint is the battery on the phone needs charging frequently. We had the old phone Motorola and that was a problem with them. The new motox's are supposed to be better.
We use it sometimes with my T-Mobile hotspot when we cannot get on the sprint network and it even works that way.

There are many areas not served by Sprint so check the sprint coverage map to see if where you go is on the Sprint network.