When it comes time, such as now, to look for a 2nd hand Apple device, I always find it a tad frustrating at how difficult it can be to identify one iteration of a device from another.
Some of the “model” numbers can actually cross numerous variations of product… and the products themselves aren’t even labelled in a way that defines them. My iPhone 8 - just says “iPhone” on the back - along with every other iPhone. There’s in fact no model number that I can see on the back of the phone, and in the control panels, it similarly doesn’t identify by the name that the phone is known as.
Scouring eBay, iPads are sometimes simply listed as “iPad” with no model # noted, making the job harder of finding what you want. MacBookAirs are similarly difficult to identify.
Big Red “iPhone 8”, Apple. That’s what I’m saying.