Mophie Juice Pack Air introduced for the Apple iPhone 5; case doubles the phone's battery life
The Mophie Juice Pack Air doubles the battery life on your Apple iPhone 5
Both the Air and Helium are slim, but the Air is bigger and heavier. The tale of the tape has the Air at 2.60 in x 5.54 in x 0.63 in and 2.68 oz, while the Helium is 2.49 in x 5.49 in x 0.59 in and 2.44 oz. The Mophie Juice Box Air is $99.95 and will be available in black, red or white. The black case ships in 7 to 10 days while the other two will ship on March 22nd.
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source: Mophie via MacRumors