The market is littered with iPhone charging cases, but only one of them comes with extra storage. The Mophie Space Pack adds up to 32GB of memory to your iPhone 5 or 5s, allowing you to carry tons of music, photos, videos and documents without fear of maxing out. The Space Pack syncs to your PC like an external hard drive and is managed through Mophie's free Space app, which automatically filters your files by type and sports AirDrop and AirPlay compatibility. Oh, and in case you forgot, this shell's battery will power your iPhone on the go. Mophie's innovative accessory starts at $149, but the sheer versatility of the Space Pack makes the premium well worth it.