Amazon offers Prime members the Otterbox Defender Series Case for iPhone 6 in Black, model no. 77-50705, for $30.21 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $5.33.) That's the lowest total price we could find by $7. This case features a built-in screen protector, belt-clip holster, and port covers.