BrevilleTemp Select Kettle BKE720BSS

How is this different than the higher priced breville bke820xl?

Is there any plastic where water or steam makes contact, even the window showing the volume or inside of the lid??? Thank you!

What is the difference between this and the 5 programmed setting?

Does this remember the previous temp setting or do you have to choose it each time? Trying to find a simple solution for someone who can't see well