Does the Watch Lite SE device use the Blockchain to save the data?

Yes, Watch Lite SE secures data using Blockchain Technology: using your LifeWatch every day maximizes your wellness, fitness, and health while also rewarding you for the data-blocks your device produces during the time it’s on your wrist; your secured Blockchain data plays a role in the creation of the first worldwide blockchain health platform for data exchange in the healthcare and medical research sector.  

Is Watch Lite SE waterproof?