Wiele smartfonów and other 65,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
It is a drawing of three smart phones with the second placed slightly over the first, and the third placed slightly over the second, creating a cascading appearance. Each smartphone shows a rectangular screen with a single dot below it.