Key Features and Benefits:Not just evolved, transformedSeries 4 represents a fundamental redesign and re-engineering of Apple Watch. From the curved corners of the larger display to the architecture of the S4 chip, every detail has been thoughtfully considered. Apple Watch has always been a uniquely personal product. And now its even more powerful.Part guardian, part guruApple Watch Series 4 inspires you to live a healthier life by helping you manage everything from everyday stress to calories burned. At the same time, it monitors your heart rate and lets you know if it detects something of concern. And that sense of security now goes a step further with fall detection and Emergency SOS.Ultimate workout partnerApple Watch Series 4 is more than just a sports watch. Its like a trainer that understands the ways you work out – from running to yoga to swimming – and puts every metric you need right on your wrist.Made to motivateUnderstanding all the ways you move throughout the day is an essential part of living a healthy life. Apple Watch shows your daily movement as three simple metrics: Move, Exercise, and Stand. Together they make up the Activity rings that track your progress all day long. The goal is to close your rings each day.The freedom of cellularTake a call from the trail. Check in with a buddy over Walkie-Talkie. Keep your workouts going by streaming Apple Music. Or raise your wrist and ask Siri to order your usual. Apple Watch Series 4 with cellular makes it easy to stay connected to the people and information you care about most. Even when you dont have your phone.