The concept of this car phone holder is very simple... hold the phone from sides and bottom regardless of the size of the phone. I have a Samsung Galaxy S8 with a case and it holds it without any problems. I took a 1200 mile road trip and it never failed. It has a very strong grip on the air vent. It's easy to put in and take out of the craddle. I also was able to plug in the phone charger while in the craddle. When not it use, the product is so compact that it does not block the air coming out of the vent. I love this car mount!