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QuietComfort 35 II vs Momentum 4

Reddit rates both Buy If. The split is what you want: the QuietComfort 35 II — buy it if you prioritize long-term comfort and durability and can stomach a real failure risk. The Momentum 4 — buy it if you prioritize sound quality and battery life above bulletproof hardware reliability.

Bose QuietComfort 35 II
Bose · Audio

QuietComfort 35 II

Buy If$350
57% of 1,256 owners recommend
~1 in 3 failure rate — ~1 in 3 long-term owner reports mention a failure, most commonly the power switch, Bluetooth, or battery, typically surfacing between 10 and 73 months of ownership. Warranty outcomes lean resolved — most who reported back got a replacement or repair covered — but a meaningful share landed outside warranty.

Buy it if you prioritize long-term comfort and durability and can stomach a real failure risk.

+ Repeatedly mentioned as the reason owners stick with them — comfort stands out across hundreds of reports.

− A vocal minority find the sound tuning too bass-heavy or otherwise colored compared to rivals.

Full verdict →
Sennheiser Momentum 4
Sennheiser · Audio

Momentum 4

Buy If$279.95
60% of 1,298 owners recommend
~1 in 3 failure rate — Roughly 1 in 3 long-term owner reports mention a failure — but note that failure_measurable is false here: there are too few confirmed long-term owners to compute a reliable rate, so treat that fraction cautiously. Reported components include power button, connectivity, and battery issues, with onset typically within the first year. Warranty resolution leans unresolved (47 cases unresolved vs. 38 resolved), so failures often land outside coverage. Serious failure reports sit at 27%, about typical for wireless headphones in our tracking pool.

Buy it if you prioritize sound quality and battery life above bulletproof hardware reliability.

+ Repeatedly mentioned as the reason owners recommend it — a reference-class sound signature across genres.

− A vocal minority flags hardware failures — power button, connectivity, and battery issues appear across reports.

Full verdict →

Questions people keep asking

Which is better, the QuietComfort 35 II or the Momentum 4?

Reddit rates both Buy If. The split is what you want: the QuietComfort 35 II — buy it if you prioritize long-term comfort and durability and can stomach a real failure risk. The Momentum 4 — buy it if you prioritize sound quality and battery life above bulletproof hardware reliability.

Is the Bose QuietComfort 35 II worth it?

Reddit's verdict is Buy If. Buy it if you prioritize long-term comfort and durability and can stomach a real failure risk. Comfort and durability keep a loyal following, but ~1 in 3 long-term reports mention a power-switch or Bluetooth failure — know that going in.

Is the Sennheiser Momentum 4 worth it?

Reddit's verdict is Buy If. Buy it if you prioritize sound quality and battery life above bulletproof hardware reliability. Great sound that holds up over time — but ~1 in 3 long-term reports mention a failure, so go in with eyes open.