AI is hard to escape in Barcelona, but it's not the only game in town. Here are some of the most eye-catching phones, headsets, PCs, and more that we've spotted at Mobile World Congress.

And we've seen plenty in our time here, from quirky concepts through to products you can actually buy. Of course, we've also eaten our weight in tapas and maybe tried a few local beers. But as the show draws to a close,

Stan is a Senior Editor at Mashable, where he has worked since 2007. He's got more battery-powered gadgets and band t-shirts than you. He writes about the next groundbreaking thing. Typically, this is a phone, a coin, or a car. His ultimate goal is to know something about everything.

Xiaomi showcased a concept phone with a magnetic-mounting lens that processes data directly on the chipset without attaching to the phone's lens. The technology is impressive and amazing.