The new feature which has been introduced especially in Apple Watch Series 8 is the skin temperature. Nothing can be better than this as you can check and track your temperature and ensure that you lie on the desired scale of the temperature. There are two areas of the suit in the watch: the sleep tracker and the cycle tracker. Sleep tracker records your daily sleeping habits and how you possess your sleep, what are the different factors which affect your sleep such as excessive stress, travelling, late hanging out with friends and so much more. Apple watch also tracks other body activities and cycles that you do regularly.