Keep track of it all. Your heart rate, movements, sleep, even your moments of calm and excitement. The SmartBand 2 will measure your pulse and stress level, so you can decide if today is a day to take it easy or go for it. Check SmartBand 2 data from the past week, month, year and beyond on the Lifelog app. View on the timeline alongside other Lifelog entries, including events, photos and music.