Motorola has put out inconsistent info on that this week, and the info on their site has changed since it was first published. We've asked Motorola for official clarification, and they've promised to get us that. Unfortunately, we're still waiting. We've updated the specs with what seem to be corrections to motorola.com, even though they differ from the official press materials we were given. We'll update the specs again when we get official clarification.
I am holding off on purchasing the Nexus 6 in favor of this phone (or the LG Nexus 5 2015). Although I love the features of my LG G4, some of the vendor modifications are driving me nuts. Moto X Fi would be wonderful.