Two models from Moto Z family are avaible – namely Moto Z and Moto Z Force. But announced was also third member – Moto Z Play but at the moment all we have are leacks with nothing official.
System: Android 6.0.1.;
Screen: 5.5″ 1080p;
SoC: Snapdragon 625;
RAM: 3GB;
Storage: 64GB;
Cameras: 16/5MP;
Battery: 3510mAh;
Other: MotoMods support.
Support for MotoMods are 100% sure – it’s major feat of Z series and I can’t think about Z Play without it.

Source: GSMArena