For people who like adventures and extreme sports, it is always necessary to have a good watch, which gives them many options, Powerwatch X seems perfect, is waterproof and almost indestructible, reaches a depth of 200 meters, but the best is that it does not need any form of charge, since it is charged with the heat energy of the body, that is why it will never stop working, you will not have to worry about the battery of your watch.