Arun Venkatesan, on his blog:
I took a close look at the cardholder name and I noticed that it’s set in a new rounded version of the normal San Francisco font. For a few years, Apple has been using San Francisco Compact Rounded, a rounded version of the font used on the Apple Watch. This is the first time I have seen a rounded version of San Francisco though. The telltale sign is the lack of the flat sides that are most prominent in SF Compact’s lowercase a, e and o.
I haven’t yet compared SF Compact Rounded with SF Rounded myself, so I’ll trust Arun that they are indeed different, but I’m very curious how much further will the San Francisco family of fonts expand and how Apple will use them in the future.