But you should probably just get a suica in your apple or google wallet, you don’t actually need an IC card. I’m not sure if using a phone makes it less fast though, I couldn’t tell (we had to get a card for my kid since he doesn’t have a phone).
Definitely better than the QR codes used by China.
It doesn't make it less fast! The same model is implemented on the mobile side, which uses the same technology.
You can use a digital Suica in Google Wallet only if your Android phone has Japan-spec hardware . International Android phones bought outside Japan generally cannot support digital Suica cards in Google Wallet.