my phone slipped off multiple times when the road got a little bumpy .. complete waste of money

That, in combination with the fantastic roads in Michigan, lead to the phone dropping down below my legs, dangling from the charging cord

The magnet is strong and my galaxy s6 plus holds up even on the bumpy roads

I knocked one star because the magnet isn't quite strong enough - rough roads occasionally knock the phone down (I'm using an Incipio case, which definitely adds some bulk, though).

The MagGrip holds your smartphone were secure even on rougher roads.

It does hold the phone even on bumpy roads, i do use it everyday

Stay in clip with bad road.

Easy to install and my iPhone 8 sticks like glue to it even on bumpy Los Angeles roads!

So far no problems, my phone has occasionally fallen on bumpy roads, but overall I do enjoy it

Used it driving on some pretty bumpy roads and phone never slipped at all

The magnet is very strong and creates a great bond even on bumpy roads

The magnet is strong enough to hold the phone on bumpy roads.

Only problem is that you have to have vents in your car that point up or traveling anywhere over 40 mph on any kind of bumpy road will bring it crashing down to the floor

Driven bumpy roads and all and doesn't budge

I knocked one star because the magnet isn't quite strong enough - rough roads occasionally knock the phone down (I'm using an Incipio case, which definitely adds some bulk, though).

The rubber comes apart, it starts to spin and on a bumpy road u could damage your smartphone

The phone is so heavy, it tilts the air vents down if I go over a bumpy road; 2.

May be just me, but after a while it began to lose it's firmness and the weight of my phone would pull it out of the vent if the road was bumpy.

Holds my phone securely even on bumpy roads

There are 4 rare-earth magnets that hold up the phone securely, even on bumpy roads.

Works well, but my car has a pretty rough suspension and the terrible roads make my phone fly off of the mount

The phone did fall a couple of times, but only on very rough, wash-board roads that I do not usually drive on.

The magnets strength could be a little stronger, but honestly, unless you're on a lot of bumpier roads, it holds very well.

Stays put, phone never moved not even in bumpy roads

Works well, but my car has a pretty rough suspension and the terrible roads make my phone fly off of the mount

and I have no problem with the phone slipping even on rough roads

I need to get another type cause on bumpy roads, my phone falls off

After about 30 days or so the strength of the magnet overcomes the adhesive of the metal plate and the phone simply falls off as you are driving along leaving the metal plate securely hugging the magnet

I have used the thin plate between my iPhone case and the phone itself (unstuck) as well as on the outside of the case (Permanently) and works great either way.

I would prefer not to see the magnet on the exterior of the case, as well as, I'd prefer not to have to remove my case from my phone.

Works as it says it would.

, they work exactly as they are supposed to.