L'Oreal's UV Sense
L'Oreal unveiled a new wearable at CES called UV Sense – but it isn't a headset or bracelet. The UV Sense sticks onto consumers' nails with adhesive glue and tracks their UV exposure. UV Sense, which is battery-free, connects to apps on smartphones to deliver data about sun exposure based on the user's location. The product will get a limited launch in summer 2018, when it will be given to dermatologists.