Lenso Space Pocket Projector
This compact projector measures just 4.48″ across, but can display an image up to 120″ diagonal. It outputs 200 lumens at a native 720p resolution but can handle 1080p and 4K signal sources. It has 32GB of storage, an HDMI input, and supports wireless streaming. Runs for 2h 30m on battery, or plug it in for a movie marathon.