Ultra-thin phones like the Galaxy S25 Edge are quickly heating up. And I'm looking forward to them, but not because of their thinness.

Samsung has been teasing its super-thin Galaxy S25 Edge since CES in January, and now the company brought a bunch of actual devices to Mobile World Congress (MWC) in Barcelona. There was a catch, though: I wasn't allowed to touch them.

Following its Unpacked unveiling in January, the company showcased the slimmed-down Galaxy S25 model in Barcelona.

How thin can a smartphone really get? If you ask Samsung, it can go as low as 6.4mm – that’s how thick its upcoming Galaxy S25 Edge will be, making it the slimmest phone in the company’s 2025 lineup.

Reportedly, Samsung's ultra-thin Galaxy S25 Edge model could be launched next month, while sales are expected to begin in May

I went hands-on with the world's thinnest phone at MWC 2025, and it was amazing. Tecno's Spark Slim is just 5.75mm thick, but it somehow has a 5200mAh battery.

Thinner than the rumored thickness of the Galaxy S25 Edge, the Tecno Spark Slim is a concept phone that's beaten Apple and Samsung to the punch.

Remember when Samsung teased a thinner Galaxy S25 at the Unpacked event last month? It’s happening sooner than we imagined. As the flowers bloom and the bees buzz, Samsung will sprout the Galaxy S25 Edge, which we expect to be its thinnest flagship. The Seoul Economic Daily reports that the Galaxy S25 Edge will have its launch event on April 16.

Samsung is showing its ultra-slim Galaxy S25 Edge to the general public for the first time at the MWC. However, touching is not allowed.

If you want to take full advantage of your Samsung Galaxy S25 smartphone, you need to know about these features and tricks.

I'm not a fan of slim devices but the Tecno Spark Slim is a concept phone that I want to launch soon, given the no-compromise form.The Latest Tech News, Delivered to Your Inbox