Samsung Galaxy Watch3 41mm Stainless Steel - Mystic Silver . Key Features . Stainless Steel CaseSleep TrackingHealth and; fitness tracking with GPSCompatible with iOS and; Android1.2 Super AMOLED Display with Gorilla Glass DXWater resistant to 5 ATM + MIL 810G . Bigger display lighter designOutlined in a subtle rotating bezel it\'s easier to see and focus on what matters with an even bigger screen. Galaxy Watch3 is thinner and lighter than its predecessor with a sophisticated look and slimmed down frame. Get a better night\'s sleepGalaxy Watch3 records your REM cycles deep sleep and total sleep time to score the quality of your rest. Samsung partnered with the National Sleep Foundation to include educational content and sleep tips right on your device to help you understand sleep better. Improve every strideGalaxy Watch3\'s running guide lets you keep pace as you get tips on the go. The advanced algorithm analyses how you move to help improve your form. You can even measure VO2 max values and keep up with your daily weekly and monthly performance right from your phon Add a little context with smart replyStay connected with others even on the go – and without fumbling to reply. Galaxy Watch3\'s smart reply analyses texts and photos you receive and gives you suggested replies supporting different categories that include food celebrations selfies and more Team up with other appsPut together a team of Galaxy Apps to join you and your phone in your day-to-day. Find your phone and see your phone\'s photos from your watch or switch between devices to control your music and check reminders. The perfect partners are all on your wrist.