F-color via Amazon offers its F-color Universal Bike Smartphone Mount for $15.49. Coupon code "MBXSQCF7" cuts it to $9.99. Plus, Prime members bag free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.25.) That's tied with our mention from a month ago, $5 off list, and the lowest total price we could find. It features 360° swiveling and is compatible with most smartphones.