v14.13: Chart data field option for select data fields

It is the same colored chart that is displayed, after you finsish a runnig acitivity. For example pace, heartrate or power. Another way to see at a glance how much time you have spent in certain zones so far.

I still don't understand where we can find these new charts. Can you provide a bit more information? Thanks!

In the Settings for the running activitiy: Longpress the Up-Button and than press the Down-Button until you have reached Activity & Apps. Than Start-Button. Select the Run Activitiy, than Running Settings, than Data Screens. Add a new data Screen with „Custom data“ and a 1 field layout. Than you will see the menu with the field categories. Scroll down to the bottom. You will find there the new item „charts“. 

How about checking it out yourself? Go to editing fields, select a field of type chart and you will see a menu of possible options. Believe me, this is not scary, and your watch most likely will not explode ;)