I bought 3
For iphone 4 with and without nikel hull "jaws" are wide enough
For Iphone 6 nikel with and without hull "jaws" are wide enough
For my Galaxy S5 nikel shelled but with my body "slim yet" the marchoires are not enough apart.
I have to force a little but it happens.
like properties on the ventilation grill in horizontal or vertical position. nothing to say
I recommend this product serious, no need to annoy with a large suction cup windshield which is useless apart obstruct the view /