The grip is no problem from a Acer Liquid Android smartphone E2 4.2.2. So very pleasantly surprised by the shape, the weight, the quality of the screen. And more with the brand case, the whole is very successful. The case window that reveals a clock as soon as the case is folded is a great idea. The only downside for the moment is the lack of sensitive areas outside of the screen to, for example, out of an application or to return to the home screen. So, the effective area of the screen is reduced. It's a shame to have a 5-inch screen to not use the entire screen. Unless it is a trick to automatically place these areas superimposed as is the case for example with the Gallery application. Perhaps a manual supplied with the unit would answer such questions