Last week, I sank into my living room couch and watched a bedraggled, nihilistic Matthew McConaughey take a drag of a cigarette in season 1 of True Detective. "You know, someone once told me time is a flat circle. Everything we've done, or will do, we're gonna do over and over and over again." I assume most people aren't thinking about fitness trackers or gadgets while watching that scene. But in that moment, I couldn't help but think about the Fitbit Edge on my wrist.
The $179.99 Edge is a modernized version of the 2014-to-2020 era of fitness bands - your Charges, your Altas, your Inspires. If you've ever owned one, you already know the va …