Fitbit rival Misfit Link costs $20, automatically tracks sleep

Looking for a quality activity tracker that doesn't cost as much as the latest Fitbit? You won't likely find anything less expensive than the $20 Misfit Link. It's an affordable option for dipping your toe in the wearable pool, so to speak. However, Link is somewhat disappointing, at least in my experience.Link isn't perfect, but for $20 ...
Did I mention Link only cost $20? That's impulse-item territory, the wearable equivalent of a candy bar at a grocery store checkout aisle. OK, bad analogy;