While nobody condones sending a Yo or Snapchat while you drive, keeping your phone visible in the car is important if you use it for GPS or for audio playback. iOttie makes some of the best dash mounts in the business, and Amazon has put a ton of them on sale, today only.
Almost all of the models should work pretty much identically, the main difference being the length of the arm and the number of joints, but they should all comfortably hold just about any smartphone on the market. The only exception to watch out for is the lone XL model, which will accommodate the Galaxy Note (but not the iPhone).
As is always the case with Gold Box deals, these are only available today, and many may sell out early, so don't waste any time. [ Amazon]