Gadget Watch : Sunshine sensor warns of red zone

La Roche Posay has recently added to its suite of skincare products with an innovative twist: the first battery-free wearable sun safety sensor. A small, inconspicuous device, this sensor tracks and measures the amount of UV you’ve been exposed to throughout the day.

It’s paired with your phone through an app offering information about UV exposure, but also data relating to the pollen count, air quality and weather.

Once you fork out the ...