The rollable smartphone is expected to feature a 12.4-inch screen and an under-display camera that conceals the front camera for selfies and video calls

Most of the phones with foldable displays that have shipped so far are designed to fold in half like a book. But the the new Huawei Mate XT is the first commercially available phone with a tri-fold display.

Samsung, and every other phone maker, has a lot of devices in the research and development phase. And now a Samsung rollable phone could be on its way out of that phase and coming to market. The Korean company seems to have moved on from the tri-fold idea — Huawei beat Samsung to the punch with its Huawei Mate XT Ultimate Design — and shifted focus to a rollable one instead.