I have a Moto Razr. When opened, it has the form factor of a standard phone, but when closed, it’s a perfectly square little block. It’s honestly the best form factor I’ve had in a phone. It’s also a 2023 model, so I’ve had it for about a year and a half at this point, and the screen is still in perfect condition. There is a small ripple in the screen at the fold, but it’s only visible when shining direct light on it. You have to be looking for it under specific conditions.