https://techcrunch.com/2019/04/29/is-this-the-vertical-folding-motorola-razr/

This could be the upcoming Motorola Razr revival. The images purporting to be the upcoming smartphone appeared online on Weibo and show a foldable design. Unlike Galaxy Fold, though, Motorola’s implementation has the phone folding vertical — much like the original Razr.

This design offers a more compelling use case than other foldables. Instead of traditional smartphone unfolding to a tablet-like display, Motorola’s design has a smaller device unfolding to a smartphone display. The result is a smaller phone turning into a normal phone.