Now, the Apple Watch Series 9 does come with the ability to measure the skin temperature of the wearer while they sleep, so there are players in the market with this feature, but it looks like Garmin is going to give users a full fledged experience. Now, for those of you who are unaware, the skin temperature sensing feature is a useful metric. A rising body temperature could indicate the onset of a fever or an infection. Prevention is better than cure after all.