Timeless Style. Modern Tech. This 45mm Q Explorist HR touchscreen smartwatch includes a black silicone strap, and lets you track your heart rate, get notifications, customize your dial and more. Smartwatches powered with Wear OS by Google work with iPhone(R) and Android(TM) phones. Wear OS by Google and other associated marks are trademarks of Google LLC. Touchscreen smartwatches powered with Wear OS by Google need a phone running Android OS 4.4+ (omitting Go edition) or iOS 9.3+. Supported features may vary between platforms. iPhone users can not react to messages or app notifications from the watch. iPhone users can not ask Google Assistant for directions. The watch will only get push notifications from navigation apps triggered on the iPhone. To prevent damage to your watch, only use with included battery charger. Do not use a USB center, USB splitter, USB y-cable, battery pack or other peripheral gadget to charge. Product must be kept more than 20cm far from implanted medical gadgets to decrease prospective for RF interference. See product insert for full details.