Received Sony WF-1000xm3 this Wednesday, so I was able to bring them for a business trip together with Nuarl NT01AX. For SQ, while both are neutral and balanced, xm3 have a slight but discernible Sony veil, and Nuarl is very natural. xm3 have a slightly more clarity, probably due to a lower noise floor. But Nuarl have a wider sound stage. I'd also like to add Mavin Air-x into comparison. To my ears, Air-X sound is more clinical, xm3 more veiled, and Nuarl more music and fluid. An Eq of a slight drop in high on xm3 pushes them more toward Nuarl, and after that I'll rate the SQ to be Nuarl > xm3~Air-X for my taste. Probably not a good analogy, Nuarl are like pure water, air-X like sparkling one, and xm3 with added flavor. I like the sound to be natural and faithful. Appearance xm3 win. They look premium and professional, a lower profile comparing Nuarl. The charging case look premium as well, though more than double the size as that of Nuarl and air-X. The magnet attachment works very well. I don't know why the case has to be designed to lie down, but not a big deal. The noise cancelling works well, but during the flight, the overall isolation does not make much difference between xm3 and Nuarl. Surprisingly I only got 3.5 hours when "low battery" warning kicked in. I guess probably because I used ambient mode couple of times at the airport terminal, and also re-connect the BT after turning on the airplane mode. But it's still quite below my expectation of 6hrs. The connection to my phone (LG V30) is slow but very stable after that, while Nuarl occasionally lose sound on one side with unknown reasons. With Nuarl and air-X already in hand, I'm not sure if I want to keep xm3. They are definitely not the must, and no IPx rating means that I may always have to bring another set with me. But they look more professional on the street. I'll give them more time.