I will most likely be returning Mophie Juice Pack Air to BB and pick up an Otterbox Commuter. I had a great experience with OB with my 4S and I'm honestly not the user that needs the built in battery. I only got caught once or twice in the 2 years with my 4S where it ran out of juice. Anyone have any experience with the 5S Commuter. Specifically interested in the glass protector reference fingerprint sensor. Thanks.