I have an unlocked Moto X first edition for sale. This is a real nice phone and works well. I used this phone for about 4 months and works very well on the AT&T network. As the title states, this is an unlocked version and will work on the AT&T and T-Mobile networks (carriers that require sim cards). The back is a Teak custom wood back. Also included with the phone is a belt clip holster and a protective clear phone cover so the wood back can be seen. I just installed 5.1 Lollipop OS. If you have any questions let me know.