Real owners lean toward the Momentum 4 Wireless: 45% of 469 owners recommend it, vs 36% of 434 for the Bose QuietComfort Ultra Headphones (2nd Gen).
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“I’m loving both Bose models though.”— Zealousideal_Bid2690 on Reddit
“Its very good. quality is top notch”— Adorable_Toe79 on Reddit
“I had the Ultra headphones which caused severe skin irritation. I got rid of them as the only solution was buying third party ear pads which would have changed the sound.”— TheLawPlace on Reddit
Real owners lean toward the Momentum 4 Wireless: 45% of 469 owners recommend it, vs 36% of 434 for the Bose QuietComfort Ultra Headphones (2nd Gen).
Owners point the Bose QuietComfort Ultra Headphones (2nd Gen) at frequent flyers who want quiet on a plane and a case that fits a carry-on, and glasses wearers and anyone whose head hurts in tighter-clamping headphones.
Owners point the Momentum 4 Wireless at sound-quality-first listeners who'll trade top-tier ANC for richer, fuller audio, and frequent travelers who want multi-day battery life and decent (not best) noise cancellation.
The most-cited downside of the Bose QuietComfort Ultra Headphones (2nd Gen) is a background hiss or white noise floor with nothing playing, audible to many owners though not all. For the Momentum 4 Wireless, it's aNC is consistently rated weaker than Sony (WH-1000XM3/4/5/6) and Bose competitors, usable for daily commuting but inadequate on planes for some owners.