Entronik via Amazon offers Prime members the Aduro U-GRIP Universal Car Mount for Smartphones, model no. UNI-SPH01-CM, for $9.99 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.14.) That's tied with our April mention, $10 below what Entronik charges via its eBay storefront, and the lowest total price we could find. It features 360-degree rotation and compatibility with most smartphones, including the iPhone, Galaxy Note, and more.