iPad - 2010 - Only just scraping in this decade there

But yes it has been pretty revolutionary. Although sales of tablets are now slowing.
Apple Watch- After a rocky start as a failed luxury fashion accessory. It finally found its place as a sports watch, not that revolutionary.
Airpods - Yeah they are pretty neat. But Not up there with iPhone and iPad. They are an evolution of headphones, not a revolution.
What about VR headsets? Honestly as for as gadgets going that is far more revolutionary than any of Apple offerings this decade (iPad excluded).