Real owners rate these about evenly: 58% of 93 Sennheiser HD 620S owners recommend it, vs 60% of 359 for the Sony WH-1000XM5.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“Just got my 620s yesterday, I like it, which is saying a lot for a closed back. I think it’s easily one of the best closed back headphones not only in the price range, just in general.”— MoonWun_ on Reddit
“Crazy enough, the HD800s and the HD620s share the top spot in my endgame headphones. And the price difference is over €1,000. I just can’t believe what the HD620s deliver for €279.”— No-Desk-1808 on Reddit
“I think technically the 620s but the design of the ear cups means they have this bit that protrudes into the ear cups (I think the anchor for the headband) and it’s quite uncomfortable (at least for me).”— gussic on Reddit
“I actually love the fact that they won't fold. Folding make them weaker and they rattle a lot.”— @LLANTALOBOTOMIK on YouTube
“I think not being foldable will eventually be better for durability in the long term”— @RaedVS on YouTube
“Wow the sound quality sounds just like my phone speakers”— @Gpinky765 on YouTube
Real owners rate these about evenly: 58% of 93 Sennheiser HD 620S owners recommend it, vs 60% of 359 for the Sony WH-1000XM5.
Owners point the Sennheiser HD 620S at gamers wanting a closed-back with wide soundstage for competitive FPS, and office/WFH users needing strong passive isolation from surrounding noise.
Owners point the Sony WH-1000XM5 at frequent flyers and commuters wanting top-tier noise cancellation, and office workers on frequent calls and video meetings.
The most-cited downside of the Sennheiser HD 620S is treble can be harsh, bright, or metallic-sounding, especially in the upper registers and vocals. For the Sony WH-1000XM5, it's hinges crack or break, often within a year.