Sennheiser HDB 630 vs Bose QuietComfort Ultra Headphones

Buy the Bose QuietComfort Ultra if noise cancellation and comfort on long flights matter most; buy the Sennheiser HDB 630 if you want accurate, reference-grade sound and wired listening. The Sennheiser is the more honest audiophile tool: neutral tuning, a five-band parametric EQ with crossfeed, a 3.5mm passive mode and USB-C playback up to 24-bit/96kHz. The Bose wins on ANC strength, spatial audio and lighter weight, but its battery is shorter and it has no wired hi-res path. Owners of both rate sound quality and build highly; the Sennheiser's 60-hour battery and 10-minute fast charge are the practical edge for travel.

• Choose the Sennheiser HDB 630 if you want neutral, detailed sound, a parametric EQ, and wired or USB-C listening without giving up wireless.
• Choose the Bose QuietComfort Ultra if blocking out plane and office noise matters more than accuracy, and you want spatial audio and a light, foldable fit.