TuneBand Go for iPhones (All Models), Android Phones (Including Samsung), iPod Touch, HTC & Others - Premium Universal Armband with Two Elastic Straps (Case Recommended. See Below for Dimensions). COMPATIBILITY: Accommodates a wide variety of cell phones, iPods and other devices, both covered and uncovered (see Compatibility table below). Use with your devices slim phone case is recommended. MINIMUM SIZE: 5.00 in x 2.40 in x 0.30 in (127.0 mm x 60.0 mm x 8.0 mm). EXAMPLE: Apple iPhone 4/4S and similar. MAXIMUM SIZE: 6.50 in x 3.40 in x 0.50 in (165.0 mm x 85.0 mm x 12.5 mm). EXAMPLE: Apple iPhone 7 Plus and similar. SECURITY & COMFORT: Device is tightly held in place by the four (4) corner clips. We include two (2) soft, elastic Velcro straps of 12 and 19 to accommodate arm circumferences between 7" - 18" (about 18cm to 46cm). If you need a different size strap, please contact us to arrange for a strap of the appropriate size at our expense. No other armband offers 2 straps! OPEN ACCESS: Allows for complete access to the devices screen, buttons, and ports. This is an open-face device (not a pouch). Camera use typically requires that the device is removed from the TuneBand Go..