1. The total energy consumption can be calculated when the length of one step and your weight are set and the total steps you take are calculated.  

2.The automatic close can conserve electricity ; the product would not show the statistics when it closes automatically on the condition that the using is more than 80 seconds; the last statistics will be indicated in next use or move.  

3. The product, aesthetic, stylish, small size, is easy to carry, and would be good partner when you exercise.