The OnePlus Open is an impressive foldable that appears to be a return to form for OnePlus. It does so many things correctly. It has more powerful specs than most other foldables, including a Snapdragon 8 Gen 2 processor, 16GB of RAM, and 512GB of storage. It also has a 6.3-inch cover display and a 7.8-inch main display, both of which can reach peak brightness of 2,800 nits. That is, you will have no trouble using it outside.