Features always-on customizable color display and 1+ year battery life; no charging necessary. Tracks steps, distance and calories burned, monitors sleep and provides a personalized daily step goal. Safe for swimming and showering. Periodically syncs to Garmin Connect, where you can save, plan and share your activities, get involved in social challenges and more. Move IQ feature automatically detects activity and classifies activity type on Garmin Connect. Find more ways to beat yesterday with easy-to-use vivofit 4. It brings you fitness tracking and the freedom to keep moving without taking a break to recharge. With its 1+ year battery life, vivofit 4 is perfect to wear 24/7, so you're always tracking your activity, automatically classifying it with Move IQ and so much more.