The Tecno Spark Slim is what I expect a company to launch when it has the word “Slim” in the moniker. It’s got a 5,000mAh+ battery, less than 6mm thickness, and more than one camera.

The TECNO Spark 4 is built with an impressive screen size. The device comes with a 6.52-inch HD dot-In display. This guarantees users a 20:9 aspect ratio of great screen experience especially for ...

Now, before we get into the details, here’s the disclaimer. Tecno says the Spark Slim is a concept device. That means it’s merely an innovation showcase for now, and there is a 50-50 chance ...