Which has better noise cancellation?

Bose. The QuietComfort Ultra II uses Bose's best headphone ANC plus CustomTune, which adapts to your ears. The Sennheiser claims 3x stronger midrange cancellation than MOMENTUM 4, but Bose still leads on overall ANC.

Which lasts longer on a charge?

The Sennheiser MOMENTUM 5, at up to 57 hours with ANC on versus 30 hours for the Bose, or 23 with Immersive Audio.

Is the Bose worth saving $50?

Yes if ANC and weight matter most: $349.99 at ShopCGX as of November 6, 2026 versus $399.95 for the Sennheiser as of November 2, 2026. Pay the extra for the Sennheiser only if you need the longer battery or aptX Lossless.

Which is better for flights?

The Bose, for its stronger ANC and lighter 250 g fit on long trips. The Sennheiser wins on total battery life if you cannot recharge.

Do either support lossless audio?

The Sennheiser does over Bluetooth with aptX Lossless on a compatible phone. The Bose does not; its USB audio tops out at 16-bit/44.1 or 48 kHz.

Can I replace the battery?

Only on the Sennheiser, which has a user-replaceable battery. The Bose battery is sealed.

Sennheiser MOMENTUM 5 Wireless vs Bose QuietComfort Ultra II Headphones

Both are premium over-ear noise-canceling headphones, and the choice comes down to battery life and codecs versus the lightest, most comfortable fit. The Sennheiser MOMENTUM 5 lists at $399.95 as of November 2, 2026, while the Bose QuietComfort Ultra II is $349.99 at ShopCGX as of November 6, 2026. Buy the Sennheiser for marathon battery life, aptX Lossless and a replaceable battery. Buy the Bose for Bose's class-leading ANC and the 250 g fit.

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