"As you can see they have the same agenda: there is a label at the bottom right on both diaries that makes us think that is exactly the same!"source
via RPattzFanGR via Eugenia0675
I can't see the label that was mentioned, but from these pics they do look the same. I thought Rob's was a prop during Bel Ami filming...Oh well.
UPDATE: Apparently, Rob and Kristen are carrying their Kindles, lol. With the cover it does look like a planner. Thanks guys!