Timeless Design. Modern Tech. This 40mm Q Endeavor HR touchscreen smartwatch includes a blush leather strap, and lets you track your heart rate, receive alerts, customize your dial and more. Smartwatches powered with Use OS by Google work with iPhone(R) and Android(TM) phones. Use OS by Google and other related marks are trademarks of Google LLC. Touchscreen smartwatches powered with Use OS by Google need a phone running Android OS 4.4+ (leaving out Go edition) or iOS 9.3+. Supported functions might differ in between platforms. iPhone users can not react to messages or app alerts from the watch. iPhone users can not ask Google Assistant for directions. The watch will just receive push alerts from navigation apps activated on the iPhone. To prevent damage to your watch, just utilize with included battery charger. Do not utilize a USB hub, USB splitter, USB y-cable, battery pack or other peripheral gadget to charge. Product ought to be kept more than 20cm far from implanted medical devices to minimize prospective for RF disturbance. See item insert for full information.