I bought this for my oversized Samsung Note. It works fine. With the adjustable holder, I think this should work for all phone sizes. There is no instructions in the package so make sure you clip the feet on the vent like a bobby pin. Once the little hooks clicked, it's very secure. You need a flat head screw driver to lift the hooks in order to remove it. The adjustable holder part just hangs on the base and can be removed easily.