It’s confusing, but a gigabit (Gb) is different from a gigabyte (GB), which is what you use to measure phone storage. A gigabit is smaller than a gigabyte by far, but Wi-Fi speed is measured in gigabits per second, while phone data is measured in plain old gigabytes. That means that with a gigabit internet connection, you have an entire gig of data at your disposal every second. But with a gigabyte of phone data, that single GB is the sum of media available to you over your billing period. So in the long run, a gigabit internet connection provides way more data than a gigabyte phone plan. We think phone data limits are bogus, so we recommend an unlimited plan if you can swing it. But if that’s not in the (sim) cards, connecting your phone to your gig internet will help you save on data!