I resisted getting a smart phone for a long time, but I just got a Moto X (2nd Generation) and I'm using the Republic Wireless carrier service because of the price. This company was recommended to me by a realtor who uses her phone all the time while showing clients around. Check them out -
https://republicwireless.com/plans/
I'm very happy with the phone and the service so far, and I'm only paying $10/month for unlimited calls and text. I also get unlimited data if I have WiFi access and can upgrade the service if necessary at a reasonable cost. And there's no contract!!!