What We Loved
- Appmobile app support that gives you access to custom and preset EQsyou can always adjust the bass with the Sennheiser Smart Control app’s EQpreset Podcast setting which seems to greatly enhance the midrange while further reducing the bass shelf
- Bass performancelike the Momentum 3, the Momentum 4 has a bass shelf under 100hz that adds quite a bit of warmth and rumble to the mixI actually find the up-shelf on the Momentum 4 to be quite a bit more modest than on its predecessorthis is a welcome change as I could sometimes find the bass on the Momentum 3 to be too boomy
- Carry case qualitynew, redesigned hardshell case that takes advantage of the headphone’s foldable designquite a bit sturdier, and it’s also much more compact, making it easier to fit in something like a backpack while traveling
- Comfort during long useNew, More Comfortable and Lighter Designchanges to the shape of the ear cups and pads also make the Momentum 4 a noticeably more comfortable headphone to wearthe pads themselves now use a softer filling that more gently distributes the headphone’s clamp force
- Ear cup padding qualitypads themselves now use a softer filling that more gently distributes the headphone’s clamp force
- Hinge durabilityless metal elements than the Momentum 3, which despite making it feel less premium, does also mean that it’s a lighter headphone
- Instrument separationfor things like detail retrieval there really wasn’t anything for me that set it apart for me from the Momentum 3it is surprisingly resolving for an ANC bluetooth headphone
- Portability/foldabilityfeatures a foldable design that allows it to be more portable than the older collapsible designenhanced portability
- Preset EQ profile qualitypreset Podcast setting which seems to greatly enhance the midrange while further reducing the bass shelfenabling this podcast setting disables the EQ sliders, and doesn’t allow for further adjustment, but it’s still a neat option
- Sound qualitySound is easily where Sennheiser’s ANC headphone once again wins me overdespite the fact that it actually sounds tonally quite a bit different than the Momentum 3my favorite pick of the current ANC headphones availableeasily outperforms the Bose 700, QC45, WH-1000XM5, and Apple AirPods Max in terms of sound quality
- Soundstage widthslightly more spacious soundstage that is now similar to the presentation you get on something like the WH-1000XM5 or Bose 700
- Touch control responsivenessmobile app support that gives you access to custom and preset EQs, as well as playback, anc, and phone call gesture controls
- Treble claritytreble is somewhat elevated or more energetic when compared to the treble on the Momentum 3more even than those of its predecessor, just with a slight up-shelf of about 1-2dB upwards of 5Khz8Khz peak ... more prominent on the Momentum 4, and as a result you do get a bit of sizzle and some sibilance
- Weight comfortlighter headphone that weighs in at around 295g as opposed to 320g
Just Okay
- Active noise cancellation effectivenessactive noise canceling performance of the Momentum 4 which, to be completely honest, I found to be middlingI personally found it to perform a little worse, even, than its predecessorstruggle to suppress sudden noises as effectively as something like the WH-1000XM5 or Bose 700
- Design and AestheticsLost Unique Aesthetic Compared to Predecessorsaviator headset-like look is gone, and well to be blunt it now just kinda looks like pretty much every other ANC in the market
- Midrange clarityMidrange is not as Rich as Momentum 3while the Momentum 3 had really present and almost shouty upper mids, the Momentum 4 instead has a bit of a dipmight be a little bit disappointing as it just doesn’t really seem to possess the same level of richness
- Noise isolation (passive)new material used for the pads, which seem to create a softer seal than the pads from the Momentum 3; so, I suppose that headphone had superior passive noise-attenuating capabilities


