Essentially, buy the 64 GB Moto X4 and get another 32 GB Moto X4 for free. Unlike the $230 Amazon deal, this 64GB phone should have 4GB of RAM since these are Android One models. More importantly, firmware updates will come more promptly than the regular versions. These are unlocked and will work with all U.S. carriers. Looks like this deal will expire on 12/7/18.
https://www.motorola.co