The enormous Fitbit Surge is a runner's best friend

When the Fitbit Surge was unveiled late last year, the popular fitness tracking company wanted everyone to know that it was not a smartwatch. In fact, Fitbit co-founder and CEO James Park said at the time that smartwatches in general "lack a purpose in life." Instead, Fitbit is labeling its newly-available Surge a "superwatch" because it blends smartwatch capabilities with the traditional (and advanced) ingredients that go into a fitness tracker. It's designed for serious runners, like if you’...