Smartphones have become so indispensable that we tend to take them everywhere. That exposes our valuable electronics to all manner of outdoor elements, especially moisture. There are plenty of waterproof cases on the market for every model of smartphone, but they are expensive. If you prefer your everyday designer case yet still need extra protection for the lake, river, or beach, the most affordable option is a universal waterproof pouch or dry bag. In addition to sheltering your phone, a small dry bag is also useful for storing a passport, wallet, cash, or credit cards. Here’s what to look for in a universal smartphone dry bag.