Are you going to have to pack the boat with you on your hike?
Weight is a real big factor in both durability, functionality and, of course, cost.
Inflatables can be real cheap but you get what you pay for.
They can be real expensive, too, but you'd be buying overkill for your purpose.
Most likely, the "leader" in the lowest price range with the "best" reliability to cost ratio would be:
Anything priced less than that would be touch and go. (Touch a rock and you don't go!)
There's a ga-zillion considerations in buying one of them. Post more info and we will help.
PS--Words in quotes are considered subjective and subject to broad interpretation.