Apple Watch: As smart watch's smart heart tracking features are turned on, Apple explains its turn to health and wellness

Since its launch in 2015, the Apple Watch has evolved with new features and capabilities. Now, thanks to a just-released software update, the latest model of Apple Watch, called Series 4, is capable of advanced heart measurements. These features have been available to Watch users in the United States for the last few months but have now been cleared by authorities in Europe as well. From today, in 19 European countries including the UK, Watch wearers can take an electrocardiogram right on their wrist. Apple has always had a strong interest in health and wellness, but the emphasis has grown in recent years and Apple Watch has been at the forefront.