28% of 469 verified Momentum 4 Wirelessowners don't recommend it — based on real owner comments from Reddit, enthusiast forums, and YouTube.
For balance: 45% recommend it. This page collects the complaints so you know what you're signing up for — read the full owner report for both sides. How we score
“It's dead as a brick.”— Rainmaker231 on Reddit
“M4 suck. Hands down.”— Signal_Customer on Reddit
“they look so weird”— puzzleheadburn on Reddit
“右邊耳機充電就時常接觸不良，真的很氣”— Swimming-Plant-8042 on Reddit
“我都係寧願買Sony 算,廢事成日壞”— Straight-Beyond-728 on Reddit
“So bad quality”— sanwar56 on Reddit
“젠하이저 좀 잘해라.”— Jumpy_Mushroom1129 on Reddit
“I remember with the Momentum 4, the quality was really bad; when you used the microphone, it would lower the audio quality significantly due to bandwidth limitations”— TheGhostWarriorPt on Reddit
“I'd advice not to, the 5's will be releasing soon, and the 4's, while sounding great, are the most PIA headphones I've ever used thanks to their BS touch controlls.”— pagusas on Reddit
“I'd never get it again, though, and when these eventually go I'll be highly critical of future sennheiser options if they use the same app and have touch controls.”— Moratorii on Reddit
“i just couldn’t get used to the low end they produced. they were definitely more subby, but they lacked the punch i’ve gotten accustomed to from my xm4s lol.”— iwantdatboi on Reddit
“Verdict: Not very good”— thogor on Reddit
Not complaints — practical notes from owners that didn't affect the score.
“Maybe you have a more powerful audio source than mine. I don't believe I am blasting myself with 100db at the moment. I honestly don't know if there's an issue. Thanks for your input.”— One-Technician7829 on Reddit
“Infact EQ in general now seems to have a less effect .I updated firmware at somepoint so I'm not sure if the sound has gotten worse or just that sennheiser copied your settings.”— Monkeymagic1235 on Reddit
“Thank you for the settings mate 🙏🏻 I'm new to this so here comes a newb question. I have a Samsung phone and downloaded the welvet app. I've also implemented your settings to the app.”— Ozzy0114 on Reddit
“That looks very nice, do mine next! Hopefully they will have a fabric replacement for the headband as from what I’ve been reading, the glue becomes unhinged for some listeners.”— human-aftera11 on Reddit
“The same thing had happened to me. Got TMW4 as a replacement for TMW3. Right earbuds started the chrping sound, and now there is no sound at all coming from it. Still charging, though.”— Puzzleheaded-Sir4387 on Reddit
“Ah, I've been using the Q45's in the gym for ages but I did see one review for the M4's that mentioned an issue with sweat/moisture. Is there anything you know to recommend for the gym?”— spacebox83 on Reddit
“What does the HDB 630 has over the momentum 4 that could be added to the M5’s? The 630 is much more of an audiophile product, the sound profile should be quite different from one another.”— Doctor_What_ on Reddit
“The replaceable battery is a huge factor for me. I've been waiting for some wireless headphones that would finally do it, but $400 is just too expensive. That's more than my HD 600s.”— bored1492 on Reddit