Mobile World Congress is the biggest show of the year for phones, and at MWC 2025, companies have shown off some very intriguing concept devices with cool tech for gaming and folding displays. But Infinix is pitching something else: solar power in the phone itself to charge its battery when users are out in the sun.

As far as concepts go, this one is pretty practical.

Infinix introduced two groundbreaking concepts at the MWC 2025: SolarEnergy-Reserving Technology and E-Color Shift 2.0.

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.

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

Mobile World Congress is going on this week in Barcelona, where the world will get a look at what to expect in the world of laptops, tablets, and smartphones in the year to come. As usual, there were even some exciting concepts being shown off on the showfloor that we might see made real years