When it comes to the "connected self" activity tracker market, Fitbit has been around for what seems to be an eternity -- two years. In 2011, the company unveiled its first tracker, the Fitbit Ultra, and they've been innovating with new and more sophisticated activity trackers ever since. The latest design evolution is the Fitbit Force (US$129.95), a sleek wristband that captures activity and sleep information.
The Device
While the original Ultra was a tiny clip-on monitor with an OLED display, the Force is a wristband model. That wristband is made of a durable silicone material, and it is so light that the Force is really unobtrusive. Unlike a wristwatch, you can't really feel the Force on your wrist so you'll wan
