The year's biggest phone show, Mobile World Congress, often has some wild handsets -- here's the cream of the bizarre crop.

Lenovo’s new ThinkBook 3D Laptop Concept and Hybrid Dimensional 34-inch Curved Monitor Concept, announced at Mobile World Congress 2025, use directional backlighting and head tracking to simultaneously show 2D and 3D content without glasses. An accompanying AI Ring concept can be worn to control them with gesture-based spatial controls.

Yeah, we knew the Nothing phones are coming, and Xiaomi's new phones weren't exactly a secret, either. But at the show floor, we've also found some extremely thin phones, some wonderfully weird (but useful!