Huawei Watch Stainless Steel with Stainless Steel Link Band (U.S. Warranty) 1.4" full circle AMOLED display with a scratch resistant sapphire crystal and stainless steel body Compatible with most devices with an iOS 8.2 or Android 4.3 or later operating system Get notifications and alerts for calls, texts, and apps with over 4000 Android Wear apps to choose from A variety of pre-installed watch faces and easily swappable bands for your own unique style Accurate fitness tracking with enhanced heart rate monitor and sensors to track running, walking, and more