Motorola just announced the Razr+, which might be the most compelling foldable flip phone yet, teasing a new standard Razr. Both offer a compact design that opens up, like a classic flip phone, to a full-sized smartphone, but this steps things up with a 3.6-inch screen on the front that is actually usable. It far surpasses that of the Z Flip 4 and even the forthcoming standard Razr.