In the VitaBit app you will have a dashboard with one progress bar per activity which gives you quick / easy insights in your progress.
The progress bars will show you how your performance of today is compared to your performance of the last 7 days. 100% is the average of the last 7 days in this activity.
If you click on the progress bars, a detail view will appear. The detail view will allow you to analyse your pattern in detail. You can select 3h, 8h or 24h to zoom in on the current day. Week and Month will show you the totals of these periods.