The Nest Hub Max's built in camera allows the unit to recognise each of us and present individual calendars. Additionally, it facilitates video calling with phones that have Google Duo installed. Plus, last but not least, it's a fully functional 'Nest' security camera. But the downside of the security camera function is that you have to pay $9 per month for a good standard of ongoing recording/alert functionality (and I'm currently looking for cheaper home security solutions like local recording with Eufy cameras). Overall, though, this is a great upgrade from the smaller Nest Hub, which I now use as a high-tech alarm clock/screen in the bedroom.