Tetrax is ok, but you have to stick a metal tab on the back to attach to the magnet. This makes the phone to wobble when you put it on the surface since its not longer flat. For MAXX or another other phone, among all the car mounts I reviewed (in my main accessories list: Twister Reviews of Android Accessories and Gadgets
) I believe Arkon Slim Grip Ultra (Arkon Slim-Grip Ultra mount for car and home
) and my recently reviewed Arkon Mobile Grip 2 (Review of Arkon Mobile Grip 2 Universal smartphone car mount w/lots of pics!!!
) to be at the top of the recommendation list.
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