Verdict: The Bose QuietComfort Ultra outperforms the Marshall Monitor III ANC in noise cancellation (RTINGS reports 38 dB vs 30 dB), sound clarity, and overall build quality, justifying its higher price. The Marshall Monitor III ANC offers a more fashion‑forward look and longer battery life at a lower cost, but its ANC and codec support lag behind premium rivals. For users who prioritize top‑tier ANC and comfort on long flights, the Bose is the clear winner; style‑focused listeners on a tighter budget may prefer the Marshall.
Bose QuietComfort Ultra lists at $399.99 while Marshall Monitor III ANC lists at $299 — Marshall Monitor III ANC undercuts Bose QuietComfort Ultra by $100.99 (34%).
Winner: Bose QuietComfort Ultra
Bose QuietComfort Ultra: 8.5/10
Marshall Monitor III ANC: 6.5/10
| Bose QuietComfort Ultra | Marshall Monitor III ANC | |
|---|---|---|
| Driver Size | 40mm | 32 millimeters |
| Battery Life | 30 hours | 100 hours |
| Weight | 1.061 pounds | 0.55 pounds |
| Connectivity | Bluetooth 5.3, USB‑C | Bluetooth 5.2, USB‑C |
Our pick: Bose QuietComfort Ultra.
Bose QuietComfort Ultra has superior noise cancellation with better low-frequency blocking than the Sony WF-1000XM4, plus longer 24-hour battery life versus 8 hours. Sony WF-1000XM4 offers richer sound detail, multipoint Bluetooth, and costs $80 less at $248 versus $329.
Bose QuietComfort Ultra offers superior noise cancellation with up to 2x better low-frequency blocking than Pixel Buds Pro 2, plus 24-hour battery with ANC on versus the Pixel's 8 hours. Pixel Buds Pro 2 cost $229 with better Android integration and spatial audio, while Bose at $429 deliver richer sound and more comfortable fit for long wear.
Bose QuietComfort Ultra offers superior noise cancellation with up to 24 hours of battery life and costs $429, while Jabra Elite 10 provides better call quality with spatial audio but only 6 hours of battery and costs $249. Bose wins for immersive listening; Jabra is preferable for calls and comfort during workouts.
Bose QuietComfort Ultra has superior noise cancellation with better low-frequency blocking than the Sennheiser Accentum Plus, plus spatial audio and up to 24 hours of battery. The Accentum Plus offers clearer mids and highs at $230 versus Bose's $429, but its ANC is noticeably weaker in real-world tests.
Bose QuietComfort Ultra offers superior noise cancellation with up to 24 hours of battery life and $429 price, while Jabra Evolve2 85 provides better microphone clarity for calls with 37 hours of battery and $480 price. The Bose wins for immersive audio and travel comfort; Jabra excels in professional hybrid-work scenarios.
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