In Sydney, however, I always need to wait at least 1 second to let the card being read. Sometimes even fail, whether with a card case or not. Re-read takes longer, preventing other passengers catching up train/bus/ferry.The transaction is completed in 0.2 seconds. In Tokyo at the train stations, if you take more than a second to go through the gate you hold up the line. The cards are created so that you do not have to stop walking and you can even run through the ticket gate because of how quickly the card is read.
This is great news if true, and would be the only thing that compelled me to upgrade from my current 6 Plus to a 7 if introduced in the new models this year.
Well...I hope Apple can do the same on opal card so that I only need to carry my phone to take train.