Classic Design. Modern Tech. This 45mm Explorist HR touchscreen smartwatch features a tan leather strap, and lets you track your heart rate, receive notifications, customize your dial and more. Smartwatches powered with Wear OS by Google are compatible with iPhone® and Android™ phones. Wear OS by Google and other related marks are trademarks of Google LLC. Supported features may vary between platforms. 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. Features Activity Tracking: Built In Fitness Tracker, Notifications: Text / Email / Social Media / App Alerts / Multiple Time Zones / Alarm Clock / Calendar Alerts, Functions: Heart Rate Tracking / GPS / Google Pay™ / Swimproof / Notifications / Personalize Your Dial / Control Your Music / Interchangeable Watch Band, Connectivity: Bluetooth® Smart Enabled / 4.1 Low Energy, Wi-Fi 802.11 b/g/n, Compatibility: Android OS 6.0+ (EXCLUDING GO EDITION), iOS 10.0+.