supports upto 5.5 inch, Sensitive touch access: all the touch screen functions are available to use (except Touch ID fingerprints),while offers waterproof & dirtproof protection for your device against water, dust, dirt, grease, scratches and bumps Transparent windows on both sides: Clear Windows on both front and back sides, perfect for taking underwater pictures, videos and checking emails. Answer the call even when you are swimming Secure lock seal: The case creates a secure seal around your device,which provides a user friendly experience when opening or sealing the pouch. Super convenient detachable arm brand and lanyard serve for multi-scenarios. Easily attaches for safe, easy carrying. Built-in compass can be used to tell directions at the crazily long beaches, new places or even during rainy seasons when your Google maps may not work well. Not only for the phone: It provides ideal protection for ID, cards, cash, MP3s, phones, documents from water&dirt damage when under water activities. Compatible with any mobile devices outer size under 6 inches, up to 100mm x 170mm (clear window 70mm X 140mm); iPhone 6/6S, 6/6S Plus, SE 5S 5C 5 4S, Samsung Galaxy S7,S6, S6 Edge, S5, S4, S3, Note 4 / 3 / 2 / 1 - Also fits other Smartphone, iTouch, MP3 player, Leeco 1s, Meizu M3 Note, Lenovo Zuk Z1, Moto G4 Plus, OnePlus 3T, Coolpad Note 5, Infocus epic 1 etc, also very useful in the rain Mansoon season.