Design, Build Quality and Everyday Comfort
Both the Bowers Wilkins Px8 S2 and Sennheiser MOMENTUM 5 are clearly positioned as premium ANC headphones, but they approach luxury differently. The Px8 S2 sits at the top of B&W’s over‑ear range above the Px7 series and uses a Nappa leather finish with metal accents, giving it a more opulent, heirloom feel that stands out among wireless noise cancelling rivals. Sennheiser’s MOMENTUM 5 Wireless is more practical than posh: it folds flat for travel, ships with a compact case, and feels solidly built, though reviewers note it does not seem quite as upscale in the hand as the Px8 S2. Comfort is strong on both, with generous padding and sensible clamping force; the MOMENTUM 5 keeps pressure light yet secure, while B&W aims for a snug, immersive seal. Style‑driven listeners may prefer the Bowers Wilkins Px8 S2, while frequent travellers might lean toward Sennheiser’s space‑saving design.
Sound Quality and Audio Codecs
For sound, these premium ANC headphones prioritise fidelity but with different flavours. The Px8 S2 continues Bowers & Wilkins’ house tuning, a refined V‑shaped profile that adds energy in the bass and treble while retaining good clarity. It now benefits from a more capable companion app, including a five‑band EQ so you can fine‑tune the signature rather than just nudging bass and treble. Sennheiser’s MOMENTUM 5 builds on the MOMENTUM 4 driver platform and borrows inspiration from the HD 600‑series, aiming for a full‑bodied presentation with dynamic bass that will appeal to audiophiles who want musicality without sacrificing detail. Crucially, Sennheiser pulls ahead on wireless codec support: Hi‑Res Audio certification, Snapdragon Sound, and aptX Lossless audio over Bluetooth make the MOMENTUM 5 better prepared for high‑resolution streaming on supported devices. If you care about top‑tier codec support as much as tuning, Sennheiser has the technical edge.
Noise Cancellation, Transparency, and Call Performance
Active noise cancellation is central to both models, but execution differs. The Px8 S2 improves on the isolation of the Px7 S3, blocking more external noise while keeping its sonic character intact. Its stronger ANC is one of the main reasons to choose it over B&W’s own lower‑tier options, and it compares favourably in the wider premium ANC field even if specialist competitors still lead in absolute noise‑blocking power. Sennheiser has aggressively upgraded ANC on the MOMENTUM 5, using four microphones per side for noise cancelling and transparency. This doubled mic array is claimed to be up to three times more effective at reducing voice chatter, with noticeable gains on planes, in crowded malls, and during commuting. Call quality also benefits from the expanded microphone system. If your priority is taming office chatter, aircraft hum and busy streets while taking frequent calls, the MOMENTUM 5’s advanced mic setup and revised ANC system are compelling advantages.
Battery Life, Replaceable Cells and Long-Term Value
Battery life and longevity may be where the Sennheiser MOMENTUM 5 delivers the strongest value proposition. Sennheiser rates the MOMENTUM 5 at up to 57 hours per charge with ANC on, and real‑world testing still reaches around 51–54 hours depending on volume, codec and source device. More importantly, its 700 mAh battery is user‑replaceable with a small screwdriver, turning what is usually a built‑in expiry date into a serviceable component. That dramatically extends usable lifespan compared to many wireless noise cancelling competitors. The Bowers Wilkins Px8 S2 offers nearly 30 hours of battery life, which is adequate for most commutes and trips but less impressive beside Sennheiser’s endurance and serviceability. For listeners who see premium ANC headphones as daily workhorses, the MOMENTUM 5’s combination of long playtime per charge and replaceable battery makes it a smarter long‑term investment, even before you factor in its extensive codec support and advanced ANC.
Which Premium ANC Headphones Offer Better Value?
Choosing between the Bowers Wilkins Px8 S2 and Sennheiser MOMENTUM 5 comes down to priorities. The Px8 S2 wins on materials, tactile luxury and that polished B&W aesthetic, while delivering strong ANC, a versatile EQ and a lively, upscale sound. It is ideal if you value craftsmanship and design as much as performance. The MOMENTUM 5, priced at USD 399.99 (approx. RM1,870), counters with practical strengths: class‑leading battery life, a user‑replaceable battery, extensive codec support up to aptX Lossless audio, and upgraded ANC and call performance using its eight‑mic array. Sonically it targets a balanced, full‑bodied signature with enough dynamism to stay engaging across genres. If your goal is maximum long‑term value and technical flexibility from premium ANC headphones, the Sennheiser MOMENTUM 5 is the more future‑proof choice. If you want a statement piece with rich sound and elevated build quality, the Px8 S2 still justifies its place at the top of B&W’s range.
