19th Hole Deals via Amazon offers the Belkin Grip Power iPhone 5 / 5S Battery Case in Purple, model no. F8W292ttC03, for $29.99 with free shipping. That's the lowest total price we could find by $52/ (For comparison, we saw a refurb for $6 less in October.) It features a shock-resistant bumper, anti-glare camera ring, microUSB charging cable, and headphone adapter.