I’ve been using the Anker CD Slot phone mount for almost a year now. Because of its size and the Otterbox Defender case size the clamps do not hold well. I spend a lot of time on rural roads. They roads are not the greatest roads. Many of them are gravel or dirt roads. Because of this, my cellphone falls out of the mount and sometimes the mount comes loose from the slot.
I was looking at getting one of the Magnetic Car Mount systems from Anker. Has anyone used one and how well does it hold your large 5.5 phone in place on bumpy roads?