I have a dual sim 640xl to sell. Was my main driver for a while and I loved it, but I moved to android and while I still much prefer the windows phone OS (and hardware TBH, though only slightly - I have a nexus 5X and the battery life on the 640XL was obviously way better) I'm now using a few android apps that would make moving back hard, so time to sell the windows phone.  It's in good condition, only minor issue is a small hairline crack next to one of the volume buttons - it's only really noticeable when removing the back cover, which is also how I did it - it doesn't affect day to day operation of the phone in any way. 

Can include receipt and box.

Hoping for $120 at this stage