World’s THINNEST smartphone is unveiled: Tecno Spark Slim is just 5.75mm thick – even slimmer than a pencil

The Tecno Spark Slim, created by Chinese firm Tecno Mobile, is just 5.75mm (0.226 of an inch) in width.The Tecno Spark Slim, created by Chinese firm Tecno Mobile, is just 5.75mm (0.226 of an inch) in width. The Tecno Spark Slim, created by Chinese firm Tecno Mobile, is just 5.75mm (0.226 of an inch) in width.  Science & tech Articles | Mail Online