Sennheiser Consumer Audio Momentum 4 Wireless Headphones - Bluetooth Headset for Crystal-Clear Calls with Adaptive Noise Cancellation, 60h Battery Life, Customizable Sound - White )

I bought these after craving some better sound quality from my personal pair of headphones. I upgraded from the Bose NC 700's. These were a big upgrade in the sound quality department. Comfort is fine, but Bose headphones are slightly lighter and much more comfortable over all. Bose headphones definitely have better ANC without a doubt.The build is sleek, attractive, and light weight. I got these on sale for $250. Amazing bargain and easy choice over its competitors such as Bose and Sony that cost more at the time. I have listened to all the new headphones such as the Ultra QC, and 1000XM5. Sound quality wise, the momentum 4's are better.The negatives: The only reason I didn't give these headphones a full 5 stars is because they are sooo buggy. I have had issues pairing with my mobile device, issues with the touch controls not working at all or only intermittently working, sound randomly cutting out at random intervals for about a second.They all have their pros and cons, if you are like me and you only care about sound quality, these are it.

Let me say upfront I am a long-time audiophile. I've been immersed in all things high-end audio for more than 40 years, and listened to a lot of stuff, including headphones. Until recently, I've avoided all BT/wireless headphones because they presented too much compromise for my tastes. Noise cancellation adversely effected audio quality and/or gave me a headache. Bluetooth simply didn't cut it for prolonged enjoyment because of the lower, compressed resolution and frequency.But, that all changed in late 2022. On a whim, I tried the newish Sony WH-1000XM5 and was surprised at how good they sounded. The noise cancellation was excellent with little of the rushing elevator sound--and boy, the sound was terrific. For the first time I felt like using a wireless headphone wasn't a big step-down from wired. The M5's soundstage was truly impressive, rivaling my Focal Clear MG wired 'phones. Plus, the M5s were much lighter, more portable, and a bit more fun. The new Sony's were a magnitude better than the older Sonys, as well as anything wireless I'd heard before.That got me wondering: If the Sony's are this good, maybe something by Bowers and Wilkins or Sennheiser would be even better. After all, Sony caters to the mass market, which is generally not that discerning when it comes to audio. Whereas, B&W and Sennheiser typically aim more for the smaller, high-end, audiophile market. So, I started comparing the MX5 to the new B&W Px7 S2 and new Sennheiser Momentum 4 Wireless.Here's what I found:In the past, like the Sonys, the B&Ws and Sennheiser wireless 'phones were disappointments, falling far short (for me) of their wired, non-NC counterparts. No longer, because the new models are dramatically better. Without going into lots of detail (something audiophiles love to do), both the Px7 S2 and the Momentum 4 are a leap forward in every way than their predecessors. Are they better than the MX5, yes, but not by much. As others have said, the MX5 has better software, better NC, is very portable, and pretty comfortable. For many, the slight compromise in audio quality may not be a big deal. I could easily live with the MX5. However, my priority is sound quality since I seldom use NC, and, even if the software of the B&Ws and Sennheisers is only acceptable.Therefore, it came down to the Px7 S2 vs. Momentum 4 for me. The Px7 S2 is much nicer to look at, exuding high quality. The Momentum 4, not so much. In fact, they look like an MX5 knock-off with a few upscale touches. The software of both the Px7 S2 and Momentum 4 is mediocre at best, albeit functional.Now about the sound. The Px7 S2 sound really, really good. Bass, Midrange, Treble are all top notch, if not perfect. They're fun to listen to, with a wide soundstage and energetic dynamics. That said, they're tuned to emphasize the lower frequencies a bit too much for my tastes. At first, this makes music and voices more vibrant and robust, but, over time, it gets tiring, and you're realize what you're hearing isn't all that accurate. If I hadn't listened to the Momentum 4s, I probably would have been quite happy with the Px7 S2.But, I did listen to the Momentum 4. It edges out thePx7 S2 and MX5 with its overall excellent balance and accuracy. Nothing is exaggerated: voices, instruments, timbre, tone are all just right to my ears. Maybe not as exciting as the Px7 S2 upon first listen, but the Momentum 4s seduce you the more you use them. There's no need for lots of equalization, or fiddling to get the sound right; its all been done at the factory. Besides the accurate representation of voices and instruments, the Momentum 4s are monsters when it comes to soundstage. The placement of everything is wide, yet accurate. You can feel the space and air between different instruments, and where the singer is in the studio or stage. Layering and detail are pretty amazing considering these are bluetooth, closed-back 'phones. Sennheiser (Actually: Sonova, because Sennheiser sold their headphone division to this maker of hearing aids in 2021.) did their homework when it came to the Momentum 4. Plus, that 60 hours of battery life is icing on the cake.Let me say this in conclusion. You won't go wrong with any of these three headphones. They're all great. I preferred the Momentum 4 because it represents the overall most satisfying package for the money, but you might prefer the Px7 S2, or the MX5, more. One last word, regarding the buggy software of the Momentum 4: I found none. With the latest updates, Sennheiser/Sonova seems have fixed the issues of poor connectivity and consistency. All system functions worked perfectly the entire time I've been using the Momentum 4s. Enjoy!

I upgraded from a Momentum 3 with a Creative BT-W3 dongle for atpX Low Latency. I upgraded to the Momentum 4 with an Avantree DG60P dongle for aptX Adaptive in low latency mode. This allows for PC gaming on Windows with great audio quality and no perceptible latency. I am extremely happy with the upgrade. (Note: though it supports aptX Adaptive, Sennheiser's own BTD600 dongle is not well suited for gaming, due to its high latency.)Comfort: Comfort was my main reason for upgrading from the Momentum 3. It's very satisfactory on the M4. It's better than the Sony XM5, and far better than the M3, but many say that the Bose QC Ultra is better. I've only briefly tested the Ultra, but this seems right to me. The headbands on the M3 and XM5 both get quite uncomfortable after a few hours.Design: The black and copper design has been my favorite of any headphones I've owned so far, even worth the extra $30 to me. The case is also sleek and feels premium. Sennheiser has taken a more "boring" modern design this generation but the result outclasses the XM5 and QC Ultra in my personal opinion.Sound: The sound quality is a noticeable step up from the M3, and the M4 is my favorite sound signature compared to the current generation's Sony XM5 and Bose QuietComfort Ultra. The EQ is highly customizable in the app. Sennheiser is famous for its audio for a reason.Companion App: Easy to use and convenient for managing your connected devices / checking codecs. You can even see the codec being used when playing audio from a different device. The Sony app has more features and is generally better. Both apps are simple and functional, which I like. The Bose app is a pain every time I have to use it: failing to identify devices, failing firmware updates and necessitating factory resets, forcing between ANC/transparency with no "off" setting, and having the least useful equalizer of the three apps.Touch Controls: A big upgrade over the tiny buttons on the M3. They feel on par with the touch controls on the XM5.Gestures: Unfortunately the controls are not customizable, but they are simple and do everything I need. The XM5 has more useful gestures/features, such as cupping your hand for temporary transparency, or activating transparency by speaking.Active Noise Cancellation: it's pretty good, definitely better than the M3. But today's XM5 and Bose QC Ultra do better. Its intensity is customizable via the app.Transparent Hearing: It's loud & clear, but doesn't sound very natural. It sounds more like a recording. Also customizable in the app. I think the XM5 does this better. I haven't tested the QC Ultra on this.The auto-on / auto-off feature is extremely convenient. By putting the M4s in the case, it will automatically turn off. Taking them out of the case will automatically turn them back on. This is equivalent to the M3s, which would turn on by unfolding them.Multipoint makes for a pleasingly simple experience. I don't have to spend time pressing buttons to turn the device on/off or pair. I just put the headphones on and start playing audio from either my PC or phone.I haven't tested the battery life, but it dominates the market right now at ~60hrs. Not so useful for my situation but great for travel.Conclusion: All-around fantastic headphones with many strengths and no major weaknesses. If you care about design, wireless PC gaming, battery life, or sound quality, the Momentum 4 is a clear winner coming in at a lower price. Depending on your situation, you may be better off with the Sony XM5 (for features/ANC) or the Bose QuietComfort Ultra (for comfort/ANC).