Smartwatches powered with Wear OS by Google work with iPhone and Android Phones Extend your battery life for multiple days with new, smart battery modes; magnetic USB charger included; charge up to 80% in under an hour Heart Rate & Activity Tracking using, Google Fit; Built-in GPS for distance tracking; Swimproof design 3ATM; responses from Google Assistant - it's your own personal Google, always ready to help; Speed through checkout with your watch using Google Pay