The Apple Watch is here to ensure that your important medical data is measured and recorded. Your blood oxygen level is measured via a sensor and an app. Your ECG can be taken wherever you are as long as the watch is on your wrist. With the Always-On Retina Display, the Apple Watch ensures that you get to read your fitness metrics with a glance. The Apple Watch is your fitness companion as it will motivate you to lead a healthier, fitter, and more active lifestyle. It also ensures that you lead a connected life.