They are bigger, yes, but not a whole lot.
I don't know an awful lot about them, but our church's pastor has one. I saw it and asked about it because it was bigger than a uke but had 4 strings only.
Side note: asking about the uke started a discussion which led to me getting back into guitar playing after a 25 year absence
Edit:
https://ukuguides.com/guides/the-ukulele-buying-guide/