Jawbone Up Bluetooth Fitness Tracker, Small - Blue (JBR06-SM) UP tracks your steps, distance, calories burned, pace, intensity level, active vs. inactive time, GPS walk/run routes and more. UP also lets you program your wristband to vibrate on your wrist and remind you to move when you've been inactive. UP tracks your hours slept, light vs. deep sleep, awake time and overall sleep quality. Also program your wristband to vibrate on your wrist and intelligently wake up at the ideal moment in your natural sleep cycle. Snap quick photos to create a journal of what you eat; then respond to prompts about how each meal makes you feel. Over time, you can use your responses to help discover which foods make you feel your best. From easy to extreme and competitive to collaborative, UP's diverse and ever-growing list of challenges will keep you motivated and constantly improving. Water resistant