COMPATIBILITY - Smartwatches with Wear OS by Google are compatible with phones running the latest version of Android or iOS. Qualcomm 4100+ chipset has 30% enhanced performance. Improved power, more reliable connection and up to 4x range with Bluetooth 5. ALEXA ENABLED - Get a little extra help with Alexa built-in. Easily access the Amazon Alexa app to get quick news and information, check the weather, set timers and alarms, control smart home devices, and more - all through the sound of your voice. HEALTH - Automatically tracks activity goals, steps, sleep, cardio and more. Activity modes with GPS keep you on track with your distance and path. Advanced sensors provide data to power your health and fitness tracker apps. Swimproof. PERSONALIZED STYLE - Always-on display now brighter with more colors and higher pixel count. Thousands of watch faces to personalize your look and always see the time. Hundreds of apps from fitness, music, social, news, stop watches and more. STAY CONNECTED - Notifications for calls, texts, apps. Automatic time zone and calendar syncing. Answer and make calls directly on your watch when your phone is out of reach. This smart watch features a speaker, microphone, and customizable buttons. BATTERY LIFE - Our new caseback and included magnetic charger cable allow for faster charging than other generations. Charge up to 80% in 30 minutes. Optimize your battery life with simplified Smart Battery Modes.