Use the WearOS by Google app on your phone running the latest version of Android (excluding Go edition) or iOS . Supported features may vary between platforms and countries with compatibility subject to change.%ocs%Battery: 24 Hr + multi-day Extended Battery Mode Varies based on usage and after updates install. USB cable with magnetic charger snaps to rings on watch caseback and spins 360 degrees for ease of use. 50 minutes to reach 80%.%ocs%This is one smart watch with always-on display and thousands of watch faces to personalize. Hundreds of apps from assistant to fitness, payments, music, social, news, games, stopwatches and more. The swimproof design is perfect for all your activities.%ocs%Automatically tracks activity goals, steps, sleep, heart rate, cardio level and more. Activity modes with tethered GPS keep you on track with your distance and path. Advanced sensors provide the data to power all your health and fitness apps.%ocs%Stay connected with notifications for calls, texts, apps and automatic time, time zone and calendar syncing. Never miss a call – answer and make calls directly on your watch when your phone is out of reach.%ocs%Android users can get a little extra help with Alexa. Download the ‘Amazon Alexa for Smart Watches’ app from the Play Store to easily access quick news and information, check the weather, set timers and alarms, control smart home devices, and more.