Wahoo Fitness Sportband for iPhone 4S/5/5S and Galaxy S3/S4 Thick neoprene band cinches snugly to your arm to minimize bouncing and chaffing issues Designed to hold any iPhone (including the new iPhone 5) as well as most other smartphones (including the Samsung Galaxy S3) Weather and Sweat-Proof Side headphone port keeps sweat/rain from getting in your iPhone (headphones not included) Fits up to 15 inch arm (381 mm)