A fine example of the subtle art of fusion, this Fossil Gen 5E is as classic as it is smart and tells you everything from your heart rate to your next email, it is powered with Wear OS by Google making it compatible with both iPhone and Android devices. Equipped with Google assistant it will help you with everything under the sun and of course tell time! This two-tone Gen 5E features a 44mm touch screen dial, silver and gold-tone stainless steel bracelet, speaker functionality, 4GB storage capacity and three smart battery modes to extend battery life for multiple days. 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 devices to charge. Keep the product more than 20cm away from implanted medical devices to minimize the potential for RF interference.