The Nexus 6 may be a year old now, but it’s still a very good device. And from eBay, you can get a new, unlocked White or Blue 32 GB model for just $299 with free shipping.
The benefit of the Nexus 6 is obviously that it runs stock Android and will be getting Marshmallow early next week. And it will most likely get future Android updates first as well.
However, while this is a US model, the seller notes that the device may not work with Verizon or Sprint. It used to be difficult to get personally-owned devices onto CDMA networks, but that has since been resolved.
But this device is guaranteed to work on AT&T and T-Mobile, both GSM carriers. If you want the Nexus 6 for very cheap, this is your best deal. Hit the source link to purchase one.