I carry a compact waterproof camera (Pentax WG-3) and if I anticipate wildlife photos, a small superzoom (Pentax X-90). Last tour I did a couple videos with the waterproof camera as I rolled thru a redwood forest of a California state park. A lot of compact cameras will do what a go pro will do unless you are doing something rather extreme. My waterproof camera has a shockproof rating, that can come in handy if packed on a vibrating bike.
I leave my big heavy DSLR gear at home on bike trips.
My smartphones have terrible cameras, but some of the newest ones have a pretty good camera.
If you are camping, you may run low on battery power. Last tour I carried 5 camera batteries but only needed 3 or 4. I bought cheap batteries shippped from China on ebay, not the full price branded ones. Shipping from China can be slow if you go that route.