I Saw Shockingly Thin Phones Everywhere at MWC 2025. But Do People Even Want Them?

Amid the throngs of humanoid robots, car concepts and futuristic displays at Mobile World Congress in Barcelona, dozens of people swarm around one particular stand. From a distance, it appears to be one of many booths showcasing yet another smartphone lineup. But a closer look reveals what everyone's eagerly trying to get their hands on: a remarkably slim phone unlike anything I've ever seen. On display is Tecno's Spark Slim phone concept, a handset that measures just 5.75mm thick (skinnier than a standard pencil) and weighs only 146 grams, according to the company. After waiting about 15 minutes for my turn, I pick up the coveted phone and am instantly amazed. It's light as a feather and yet doesn't feel like something I can snap in half. I do my own visual thickness test by pulling a pen out of my backpack and comparing it: the Spark Slim is in fact notably thinner. Tecno isn't the only company that seems to believe slim is in. A few halls down, Samsung is displaying its Galaxy S25 ... Read full article.