Lol. Yeah I realise GSMArena sometimes has missing features not listed for the phones or they are not 100% accurate as you said their disclaimer stated.
Anyways I got the HTC One X+ version and the first thing that made my day with it was the quick boot feature which booted up the phone in less than 10 seconds
. The next thing I noticed(which should be the first but I noticed this after) was how comfortable it felt in my hands. The back is soft like and has a none slippery surface, so it won't fall out of my hands so easily. Right away I tested the sound quality and I must say it's superb and when the headphone is plugged in and 'beats audio' enabled it's one of the clearest audio I've ever heard from a multimedia device to date.
HTC Sense is such a convenient feature with the ability to have multiple homescreens with different settings is just plain awesome.
Youtube videos in HD play like a dream and those 3D games (eg. Dead Space) just surprised me how crisp it looks and plays on this phone. It's like a PSP HD in a phone.
The keyboard is very easy and responsive on the phone and the default browser on the phone is even faster than my desktop one even with flash enabled.
Only fault I find so far as with most people who review this phone is the battery life, but so far I have tested it with about 30 mins of hardcore gaming and video watching and browsing, etc and when I checked the time on battery when it had 20% life remaining it was almost 9hrs and that was before I saw the power saver feature.
Heck 6 hrs of continuous use before I really need to charge is more than enough for me so I'm happy with my HTC One X+, it gets the job done.