In the U.S., AT&T is selling the K4 2017 variant (LG-M150) as Phoenix 3. Another two variant of the K4 2017 namely LG M153 and LG M154, have been available for a while in the U.S. too.
In fact, all these four devices (M150,M151,M153 and M154) are exactly same device -sharing same design and hard ware specs.
The LG K4 2017 (aka LG M151) features a 5inch display of 854 x 480 pixel resolutions. It comes with a MSM8909 1.1GHz Quad process, 1GB of RAM, 8GB of internal memory and Up to 32GB Expandable Memory. other specs of the phone includes 5MP rear camera, 5MP front camera, 2,500 mAh removable battery. It runs on Android 6.0 OS and supports 4G LTE Bands 2, 4, 5, 7, 17.