Neither Apple, nor Samsung: The thinnest cell phone is the Tecno Spark Slim

Why does it matter, beyond the anecdote? Because Samsung had, in his stand, Caracas del Galaxy S25 Edge, the finite phone that announced last January, of which we still do not know any technical data, unless the intention of the South Korean company was to anticipate the rumored iPhone 17 Air of Apple.

Nobody expected to beat them by hand Tecnoone of the brands of China Transion. In his stand at the fair, more modest than that of his competitors, he had two Spark Slim working, and with unexpected benefits.

Mainly, The Spark Slim has 5.75mm thick, 2 mm less than an iPhone 16 Plus or a S25+ galaxy; The difference may seem trivial, but in hand it feels immediately, and it is appreciated.

As a reference, an iPad Pro or a Galaxy Tab are barely thinner (5.1 or 5.4 mm) but with much more space to insert what occupies the most space in a device of these, and what you suffer most when a device becomes more compact: the battery.

In Tecno they are using the new silicon carbide batteries that Chinese manufacturers are including in their teams a couple of years ago, which enable greater energy density. The Smartphone Gamer Redmagic 10 Pro of Nubia presented at this fair, for example, has a 7050 mAh battery in a team of dimensions similar to a Galaxy S25 Ultra (5000 mAh) or an iPhone 16 Pro Max (4685 mAh). ¿What battery brings the Tecno Spark Slim? 5200 mAhwhich should be more than enough for everyday use. And above it has a weight of 146 gramsthanks to the use of steel in the frame and aluminum for the rest of the equipment.

The hardware is completed with a 6.78 -inch screen and a double rear camera and a system of lights to offer notifications in the style of the firm Nothing. But we do not know what processor does the rest of its functions have.

Is there price, presentation date, more technical details? Nothing, Tecno says that this is a prototype, a proof of concept. But the company can now sit and see how Samsung’s finite phones are really like. For now, we know that both companies know how to achieve it: Apple, for their ipad pro 5.1 mm; Samsung for his Galaxy Tab, and for his experience: In 2015 he presented the Galaxy A8at that time its most slender smartphone, 5.9 mm thick. In the coming months we will surely have more news of the three models.