Check the steps of iPhone as follows:
Check the number of steps you take in a day on your iPhone. In iOS8 system, there is a "health" function, where we can see the data we want to view;
In "Health Data" of health application, find the column of "Fitness Data" and click Enter;
Then you can see the number of steps, frequency+distance, etc. Click enter to view the detailed data;
You can see the frequency of walking now.