aside from what others have mentioned about eSIM, using global ROM will be more convenient if you'll be using the phone outside of CN. I've used CN ColorOS and while I like some of things they offer (more granular permissions management, ability to uninstall a lot of the built in apps), it's a bit more of a hassle since for us who use apps outside of CN and installed from Playstore, will need to change settings to make sure they get immediate notifications, and it wont have things like nearby share, android auto, google location history.
with the promo on shopee over the weekend, the price for local set is so close to CN pricing with the same ram/storage config (like ~70 SGD difference only?) that unless you really just want as cheap as possible, it's way more worth to just get local set since we get 2 years warranty here also. so personally, would not consider at all.
