La Roche-Posay has revealed its new UV Sense. The device is small and offers long wear and real-time data. The first battery-free wearable electronic sensor to measure individual UV exposure, UV Sense can store up to three months of data and show trends of exposure over time with instant updates. The new wearable is less than two millimeters thick, nine millimeters in diameter and designed to be worn on the thumbnail. By putting this technology on the thumbnail – which receives optimal sunlight - consumers can increase wear time from several days with My UV Patch to several weeks with UV Sense.

UV Sense will launch in the UK in 2019. Price TBC.