Notifications at a glance: calendar events, text and emails, incoming calls, and more.;Includes Pebble Health, a built-in activity and sleep tracker with daily reports and weekly insights.;Water resistant to 30 meters;Built-In microphone for voice notes and quick replies;Choose from thousands of watch faces and apps in the Pebble App Store with more added every day. (Please note that sending replies works with AT&T iPhone accounts, and most major Android apps including SMS, Hangouts, Gmail, Facebook Messenger, Whatapp and hundreds more. iOS voice features for other carriers will be available in a future software update.). WORKS WITH ANDRIOD 4.3 OR ABOVE