Hands down, the best mobile holder you can buy for your car, it is made out of metal, so can’t complain about the build. It relies on the magnet, so yes, you have to attach a metal plate to the back of your smartphone.
I think you may have used this kind of car mobile holder but if you haven’t then you can give it try. The only thing I don’t like is, after six months of use, the two of its arms get loose and when there is a bump, the phone will slip out.
Now, there will be some people who want different designs and this is for those people. The Tarkan [Rubberized] Car Mobile Holder goes directly into to car AC space and it’s also steady too, so the phone won’t fall down.