At some (most?) F1 races you can rent out a "Fanvision" unit which is basically a portable tablet that contains live timing and commentary. Unfortunately for us

At some (most?) F1 races you can rent out a "Fanvision" unit which is basically a portable tablet that contains live timing and commentary. Unfortunately for us at the Japanese Grand Prix this year it was only available in Japanese... so I made do with the live timing app on my iPhone instead. Definitely invaluable, otherwise I would have had no idea what was going on!