IFast vs XMax 3

Until as recently as 3 days ago I'd never really paid much attention to Qidi as a brand, so forgive me if the answer to this question is obvious, but I'm truly stumped trying to determine the differences between the Xmax3 and the IFast.

From what I can tell, the Xmax prints faster, has a larger build area, gets ever so slightly hotter (65C chamber vs 60C), and is ~CAD$1000 cheaper than the IFast. The IFast for its part has a double extruder and....that's about it? Is there anything else I'm missing that explains why anyone might prefer the IFast?