Which Logitech Harmony remote should I buy?

I'm choosing between:

A: "Logitech Harmony Ultimate"
B: "Logitech Harmony Companion"

...both are around the same price.

According to the following PDF

Comparison

...it says that "Logitech Harmony Ultimate" does not have "Home Automation" or "Away from Home Access", but that the "Logitech Harmony Companion" does have those functions.
I'm confused by this.
And does this mean I should choose "Companion" even though it doesn't have a display?