While its not the first of it’s kind, the Smartsun band is still a cool and very useful product. The Smartsun wristband could be the “must have” accessory this summer for everybody in the family even winning ‘Baby Product of the Year’ for 2013.
Developed at Scotland’s University of Strathclyde scientists used a safe acid-release system that gradually changes the pH levels when UV levels elevate. The absorption of UV effectively creates a color change in the band starting with yellow slowly ending with pink when it’s time to get out of the sun or cover up.
They are disposable and have to be replaced every day. They can be worn in the water and in almost any climate. You can get seven bands for roughly $12.99. You can learn more about the bands here.