Kingii
This seems too good to be true.
Kingii is a wristband that helps you to stay afloat. All you have to do is pull the lever and an inflation bag keeps you afloat.
I am so sad that this wasn’t invented long ago. How many lives could have been saved? I would like to try this myself.
It’s $80 on Amazon. The Kingii can be used over and over just by replacing the CO2 cartridge inside.
The company warns, “The Kingii Wearable provides additional buoyancy, but cannot replace a life vest.”
Tom Agapiades, Founder and President, said he invented the Kingii Wearable because he had a very good friend who died from drowning. “Even the most experienced swimmer can experience a water emergency, and my friend paid the price for being unprepared. The Kingii is the smallest inflatable in the world but should not replace a life vest.”
I would love to see every child wearing one when swimming or playing near water. Anxious to hear from those that tested this product. We all really want this to work.
DigiDame 
I bought it when it was raising funds last year. I had known people who lost their lives drowning. I think for surfers especially or anyone who goes out in the ocean, it is truly a lifesaver!!
I worry that it works. If you don’t change the charge, or its faulty, oy vey. Otherwise, it’s a wonderful idea.
Lois, it looks wonderful. Yes, it is a worry if something goes wrong. I am a non-swimmer, and tried many floatation devices to help me in my efforts to learn to swim, but nothing worked for me. This sounds like a simple solution!