Amazon offers its Prime members the iOttie Notch Protective Case for iPhone 5/5s in Cobalt Blue, Snow White, Pearl Green, or Phantom Black for $9.99 with free shipping. (Some of these colors are on backorder, but orders can still be placed. Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $5.74.) That's the lowest total price we could find by $7, outside of the price below.

Need another color or own a Samsung Galaxy S4? Groupon offers this case for iPhone 5/5s or Samsung Galaxy S4 in a variety of colors for $9.99 plus $2.99 for shipping.