Samsung phones have had this feature for years. So if you had the top of the line androids, you would have been able to do the same thing you did with your Iphones. I see many people make the mistake of comparing $1000 Iphones to the cheapest $200 android phones and use that as evidence of Iphone superiority. I guess we have Apple's marketing and brand to thank for that.
Never heard of such features on Android or Samsung despite my Android friends use them whole life and AirDrop was one of the reasons some of them switched to iPhones. There were some things where you needed to put smartphones back to back and it worked probably in one of 100 times but nothing like AirDrop. That’s why Google failed with wifi direct and other childish approaches.