I had the iPhone 7 for nine years. It was starting to do things that made me think there was a chance it could crash so I made sure to get another.
I had one crash years ago and I lost most of my contacts. I think it was when I got the 7 that I was able to find out how many contacts I had. The AT&T employee commented on how long it was taking to download my contacts. She said at the time I had 5,000 plus contacts.
I was told you could look at the end of your contacts you could see the number of contacts but unless I was missing something I could never find it on the 7.
The 12 does show the amount contacts and now I’m up to 7821.