Tech for real life. This 44mm Gen 5E touchscreen smartwatch features speaker functionality, 4GB storage capacity and three smart battery modes to extend battery life for multiple days. Wear OS by Google works with phones running the latest version of Android™ (excluding Go edition and phones without Google Play Store) or iOS. Supported features may vary between platforms and countries with compatibility subject to change. Battery life is based on usage and after updates install. To avoid damage to your watch, only use with included charger. Do not use a USB hub, USB splitter, USB y-cable, battery pack or other peripheral device to charge. Product should be kept more than 20cm away from implanted medical devices to minimize potential for RF interference. Soaps, cleaning products, and abrasive materials can cause damage to your smartwatch.