After accessing your device's history, you can compare the data that's been collected over a period of time. In order to do so:

1. Click on "Compare" located on the upper right-hand corner of the screen.

2. Enter the start and end dates on the upper part of the screen.

4. Neuron will show you the evolution of your device's data during that period of time on a graph.

4. Click on "Close comparison" once you've finished to go back to the main screen of the device's History.