The Nest Hub Max isn't just a larger smart display, it's Google's first where the Assistant can see you, too. If the original Nest Hub was a connected digital photo frame that just so happened to have Assistant smarts baked in, the Nest Hub Max builds on that with a bigger screen, better audio,...
Bigger screen looks fantastic; Audio much louder and clearer than Nest Hub; Face Match works quickly and accurately; Assistant keeps getting new features
No physical camera cover; Limited to Duo for video calls; Assistant UI doesn't make the most of the display