Is the Northern Star durable? Is it waterproof?

Absolutely. We are dropping it, kicking it, smashing it, cooking it, freezing it, and dunking it before putting it in your hands. However, just to be thorough, we will be working with an independent testing agency to put it through its paces. A water-tight gasket seals the unit making it waterproof and moisture proof, not to mention we coated all components with a thin waterproof protectant.