Netamo's June braceletNetamo's June is an elegant French-designed ladies bracelet that tracks how long you've been exposed to the suns' rays -- and whether the wearer needs to take action to stay safe. Syncing up to a smartphone app, the bracelet and monitors your exposure to UV rays, and if you've been exposed to too much lying in the sun or being outside, it will warn you so you can cover up or apply more sunscreen.