What font and size is used in the notification header on iOS?

Question

iOS

The essence of the task is to emulate the rendering of a notification on the server, so that the editor can watch it in real time before sending a push to it.

Now for testing I used "SFProDisplay-Semibold" with a size of 17pt, but it feels like the letter "i" has other parameters because The "width" of the received image on the server does not match what is visible in the notification.

Hope I explained the problem clearly :)

Answer 1