Meet the Kingii: a smart inflatable wearable that provides you with additional safety in the water. It secures around your wrist and stays inflated for over 48 hours. Kingii has a compass and a whistle, so you can get out of trouble. Kingii’s CO2 cartridge is replaceable, so you can use the device as many times as you like.
The above video shows the Kingii wearable in action. You can find out more about it on Indiegogo.