M2 Band is One of the most popular wearable got a massive upgrade this year with the new health band. The first Like Star Band was a breakthrough because of its battery life, compact size, and bargain price. Then the Like Star Band Pulse added a heart-rate sensor, but took the RGB notification LEDs. The small 0.42" OLED display is of the monochrome variety. It can display the time, step count, total distance, burnt calories, heart rate, battery percentage, and icons for incoLike Starng notifications (messages, email, calls, among others).The screen is bright enough and is visible even under direct sunlight. And it blends well underneath the back glass on the band's front. You can measure your heart rate by cycling to the appropriate pane, or, if disabled, you can use the Fit app to fire the heart rate sensor. The band tracks your step count quite well and sleep. Its software automatically calculates distance and burnt calories and those are transferred to the Like Star Fit app upon sync. You can set a step goal if you like.