I cant make out the model number in your photo…

https://everymac.com/systems/apple/iphone/iphone-faq/differences-between-iphone-3g-iphone-3gs.html

Although external identification requires sharp eyes to spot it down at the bottom of the back of the phone, the iPhone 3G is model number A1241 and the iPhone 3GS is A1303. The China-only iPhone 3G and iPhone 3GS models that do not have Wi-Fi are model number A1324 and A1325, respectively.

FYI I owned both, the 3GS was just leaps faster than the 3… At this point however I would be surprised if there would run without a full battery swap due to age.

I think the EU is somewhat FORCING it… I don’t see this as a willing change.

How specific? Most companies can tell if you are connecting to the mail server from an IP in a different city without needing any app to do that.