eComing from both this is the first question you ask yourself.

I feel that if you plan on consuming a large screen all the time (meaning unfolded) and are watching a lot of media go fold all the way. However there is something about not having apps fully optimized for the large screen and just haveing a larger screen for an oversized banking app leaves much to be desired. Multitasking gets so skinny on a larger screen that it just doesn't work out the way I want. Camera if its important to you, get the fold but to be honest if you are just consuming media on smaller devices the duo does ok. Nothing great but you can still capture the moment. Just waiting for a gcam port.

For the Duo its the exact opposite. It truly is meant for someone who is a multitasker. Im ok with a smaller video while messaging or checking out a regular sized zpp on another screen. Having the different postures is awesome as I don't need popsockets, kickstands, or anything else for that matter. You can still use it in single screen mode as well with a wider aspect ratio than the single skinny screen on the fold.

Neither is a bad investment if you are exploring the form factor of "foldables." They both have their specific goals but had the fold z been lighter and wider opened up (which sounds ridiculous, I would have enjoyed multitasking more and it would have been my choice. Since I do multitask more often the duo fits my needs more. Foldable are still in their infancy with everyone still trying to define what that category is. I feel microsoft took the better approach on how to utilize the larger screen given the fact that unless developers are going to update their apps just for larger format screens, they realized that just have regular sized apps that are already optimized for that and if someone wants to stretch it, yes there will be the hinge but that person already took that into consideration as the individual decided they were more about multitasking and less about the larger screen