Woot has the Refurbished Fitbit Flex Fitness Band for $39.99 ($59 new on Amazon) or the FitBit Charge Fitness Bands for $59.99 ($119 new on Amazon) for a limited time. Shipping adds $5.

Keep an eye on your activity levels, sleep quality and calories burned with this Fitbit Flex FB401LE wristband, which features LED lights that let you easily track progress toward your daily fitness goals. The silent alarm makes it easy to wake on time.

Energize your day with Charge—an advanced activity wristband that tracks your steps taken, distance traveled, calories burned, floors climbed and active minutes. Stay connected throughout the day with real-time fitness stats and Caller ID on the OLED display. And when the day is done, automatically monitor your sleep and set a silent, vibrating alarm. Whether you’re at the office or on the go, Charge wirelessly syncs your stats to your smartphone and computer to help you find the motivation you need to achieve your goals.