Compatible with both Android and Apple phones from screen sizes 4.7" to 6", also included is an insert holder for iPhone 5/5s 4" screen. Also included is an NFC Smart Tag for Android phones. NO OPTICAL LENS ADJUSTMENT NEEDED - The specially designed lenses require no adjustment what so ever, compartment also big enough for most prescription glasses if needed. Simply place phone in the holding slot, align, and that's it You can correct the position of phone at any time even while watching movies or playing games, it is convenient to make sure the middle lines of phone and glasses overlap. The humanized design of straps can distract part of pressure from the bridge of nose, comfortable for wearing. Fits for iPhone and Android phones with screen size within 6.0 inch.