What are you taking about?

Ok screen but not for the intent, no 3G (only edge), an impossibly shitty camera (fixed focus 2MP main camera, no auto focus, bad auto settings, didn't even support recording videos, no optical or digital zoom, neither xenon nor led flash ... and no front cam at all so no videocals either ofc), couldn't even send MMS (you could only email your pics, maybe?), OS was also clunky & limited, no free transfers from desktops without going through Apple software, and even then you couldn't do the simplest things (like custom ringtones where on eg Symbian you just pointed it to whatever mp3 or other audio files).

What it did have is better touch screen than any other phone & a snappy interface (imho the most notable achievement of that phone, prob the result of like 5 devs & 50 project managers screaming at then, gg to the devs).

The full on touchscreen phones of the era (I member Sony Ericsson P900, P910, and P990 from 2003, 2004, and 2005) were quite laggy when for example starring apps or scrolling though images or whatnot.

At the time two year old Nokias (obsolete basically, hehe), had better specs and everything listed above (prob forgot some things). But ultimately I just couldn't go back from having a phone with 5MP cam with autofocus & Carl Zeiss optics. The era of me taking pics of all the thighs for be began in like 2002 with first camera phones.

Same with 3G, that was basically having internet everywhere, a mobile modem (via USB). I remember I played Quake over it just for fun (I had 100+ ms ping so not great, especially bcs we got optical fiber net around that year).

iPhones took gens/years to even get front camera, video recording, MMS, and other basic functionality - til 2009 or whenever the sexy 4th gen came out.

If you didn't mean 'flagship with features' then those titanium Nokias were also fancy. And ofc BlackBerry for texting & emailing.

Also a flagship is the big ship that usually floats on water, but that is not important right now.

Edit:
oh, I forget Japan had some crazy good phones around that time, I member seeing DoCoMo phones with nice screens, games, etc.