I had the Flip 2, 3, and 5. I just switched to the Moto Razr Ultra and I feel like it is even better. The external screen works almost like the internal screen, making it extremely easy to use. Samsung locks down their external screen pretty hard and you need a lot of work arounds that still don't give me the same functionality as the Razr.

I also got the Clicks physical keyboard case for it, which turns it into a modern Blackberry type phone. I love it. The physical keyboard means no on-screen keyboard taking up your external screen space. I only actually open my phone a few times a day, which really helps keep doomscrolling at bay. Full discloser, the keyboard isn't perfect and definitely has some quirks and tradeoffs but on the whole I'm glad I got it.