Getting and staying fit can be a chore. Fitbit wants to make it fun by adding two new health trackers: the Fitbit Zip Wireless Activity Tracker and the Fitbit One Activity + Sleep Tracker. These new trackers feature Bluetooth 4.0, allowing you to wirelessly sync your data with your computer and / or iOS and Android smartphones. The Zip has been designed to capture everyday activity stats in real time, including steps taken, distance traveled and calories burned. The Fitbit One also tracks steps, distance, calories burned and even stairs climbed. But it also monitors how long and how well you sleep. It will even replace your alarm clock by gently waking you with vibration. The Fitbit Zip will be available in retail stores and at Fitbit.com for $59.95 and the Fitbit One will replace the best-selling Ultra, will be available later this Fall at $99.95.