... designed for the iPhone but also works really well for Blackberrys Convenience for iphone 5/4sFits devices right side up, or upside down to read screen ... against perspiration, bumps, scratches & the elementsReflective logoDevices that fit: Apple iPhone 4, 4S, 3GS, 3G, 2G, 1G; BlackBerry Bold, Blackberry Curve ... when in range of 5.75" to 6.25") armband for iphone 5/4s sports case