Important Notes: 1. Not compatible with all generation Touch ID (fingerprint sensor) 2. For optimal usage of the armband, we recommend a phone screen display size 5.5-inch or above 3. For smaller phone, we recommend your phone equiped a protective case for a tight-fitting.Accommodates Most Cases: We?ve designed the Armtrek Pro Exercise Running Armband to be large enough to work with most phones and protective cases for two-layers of protection. The Armtrek Pro works with: - Apple iPhone XS Max, XR, XS, X, iPhone 8 Plus, iPhone 7 Plus, iPhone 6s Plus, 6 Plus and more - Samsung Galaxy S10,S10+,S10e,S9+, S8+, S7 Edge; Note 9 5 3 2 and more - LG G6 G5, LG v10, v20, V30and more - Google Pixel XL, Pixel 2 XL - Its protective cases such as OtterBox, Lifeproof, Speck, and others.PREMIUM MATERIALS & Universal Sizing: Made of stretch resistant neoprene. The Trianium ArmTrek Armband case for large smartphone easily bends, flexes, twists, and folds without warping. Multi-slot Adjustable Velcro iPhone Armband Will Fit Almost Any Arm Size Up To 14".TOUCH SCREEN COMPATIBLE: Enjoy the full use of your phone screen through the protective screen cover on the armband with fully touch compatible, easily answer calls, manage your playlist, or activate your stopwatch without removing the phone.EXTRA FEATURES: Water resistant design protects against water and sweat. Built-in key pocket; secret compartment stores your house key while exercising. Comfort-grip keeps the band firmly on your arm during workouts and running. Headphone and charger cutouts allow direct access to the phone through the armband.