Never really found the appeal of foldable phones. I had the Nokia bricks, Samsung Q105 that mimicked the old school pullout antenna and speaker fold, and then I had the Motorola Razr. Had so many problems with them - speaker going out, not being loud enough, reception terrible, etc... that I went to a Sony Ericsson T650, which was probably the best phone I ever had. It was tiny, indestructible, and lasted FOREVER.
One of my family members found it at my parent’s house and I was surprised how it fit in the palm of my hand. So used to my 8+, Xs MAX phones that I couldn’t imagine using a phone like this. Somehow I texted my wife (my then girlfriend) on this numberkey pad until I got my first HTC MyTouch phone.
Now that I’m spending more and more time on my iPad and MacBook I could see going back to a smaller phone. My 4s has many fond memories attached to it. I almost rarely use my phone to call and 99% of what I do is on WiFi. But for those times I need a phone (vacation, walking trips, etc...) a cellphone is vital (directions, emergency 911 calling, communication with family, etc...).