Samsung and Lenovo had the most interesting folding concept devices to show off at the annual trade show in Barcelona.

Lenovo Among the bigger-name manufacturers, Lenovo has arguably had the busiest MWC so far. The company has revealed a whole bunch of laptops, including upgraded ThinkPads and several intriguing concept models.

At Mobile World Congress (MWC) 2025 in Barcelona, Lenovo unveiled a groundbreaking innovation: the Solar Yoga PC, a laptop that charges itself by harnessing sunlight. This pioneering device marks a significant leap in sustainable technology, integrating advanced solar energy conversion features to extend battery life — even in low-light conditions.

Lenovo announced two concept AI accessories at Mobile World Congress 2025. The pair of devices, creatively named AI Display and AI Stick, have built-in NPUs capable of 32 TOPS, allowing users to do local AI work on just about any computer plugged in via USB.

At MWC, Lenovo announced a portable dual display that connects to the brand's Magic Bay system, bringing a triple-screen setup in one snap.

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.

Lenovo has cooked up a new laptop with a solar panel with sufficient energy-absorbing capability to turn 20 minutes of sunlight into enough charge for an hour of video playback. Give it up for the Lenovo Yoga Solar PC. Lenovo has also revealed a stand-alone USB Type-C solar charging kit.

At Mobile World Congress, Lenovo is announcing new ThinkPads, including the first T-series convertible, and a beefy Nvidia RTX 5070-powered Yoga Pro 9i Aura Edition.