I have a Nexus 6 and Google Fi. Pay for the phone up front, then I'm averaging 25-30 bux a month, and no overage charges. If you use more than the 2GB of data (and with the way they connect to wifi I doubt you ever will) its 20 more a month. They refund you based on how much of that initial 2GB you use. The piggy back off of TMobile and ATT, so if those signals are poor in your city, keep that in mind. The good news about that is that the way Fi works, if there is an open WiFi hotspot, the phone connects and creates a VPN tunnel that acts as your cell tower. The phone is big, but I use it less for a phone and more for data anyway, and I have giant hands so the phone feels more 'normal' sized for me. The Pixel phones look decent in the reviews I've watched so far.