I utiliose support for 2 uses. Great info on severe a smartphone that does not move at all and super clean squr fixing the grid. For GPS, certainly a little less stable than Xway, especially if the screen is large. Moves a little with my TomTom via 130 (4.3 poues) when to press the edge of the menus. It's still usable, but a bit worse ... Certainly flipant with a 5 " Overall a good flexibility to use the correct size device.