Amazon offers its Prime members the iOttie Easy Flex 2 Large Smartphone Car Mount/Desk Stand for iPhone and Android, model no. HLCRIO121, for $17.99 with free shipping. (Non-members can spend over $35 for free shipping; it otherwise adds $5.48.) That's $12 off and the lowest total price we could find. It features an extra-large suction cup, 360-degree rotation, and 1-touch mounting system. It purports to be compatible with large phones like the iPhone 6 and Galaxy Note 4.