Bowers & Wilkins Px7 S3 VS Bowers & Wilkins Px8 S2

From a design standpoint, the Bowers & Wilkins Px7 S3 and Px8 S2 are remarkably alike. Both are over-ear, closed-back headphones that fold for portability, ship with a travel bag, and share an identical 1.2 m tangle-free, detachable cable. For users prioritizing versatility and convenience, neither model has an edge — the feature set is effectively the same.

The only measurable difference is weight: the Px7 S3 comes in at 300 g versus the Px8 S2's 310 g. A 10 g gap is marginal in absolute terms, but over extended listening sessions it can translate to very slightly less fatigue — a consideration worth noting for users who wear headphones for hours at a stretch.

In this group, the Px7 S3 holds a narrow edge purely on the basis of its lower weight. However, given how small that difference is, buyers should not treat it as a decisive factor — the two headphones are essentially equivalent in design and build philosophy.

Across every sound quality specification provided, the Px7 S3 and Px8 S2 are identical. Both feature a 40 mm driver, both implement active noise cancellation, and both rely on passive noise reduction as a complementary layer — a combination that, in practice, targets a broad range of ambient frequencies, from the low rumble of engines to mid-range office chatter.

The absence of a neodymium magnet in both models is worth acknowledging. Neodymium magnets are commonly used to improve driver efficiency and transient response, so their omission is a shared characteristic rather than a differentiator — neither model gains an advantage here, but it is a data point audiophile buyers may want to weigh against other factors outside this spec group.

Based strictly on the provided data, this category is a complete tie. There is no specification here that separates the two headphones, and any difference in actual sound output between them would have to be attributed to factors — such as driver tuning, acoustic chamber design, or signal processing — that are not reflected in these specs.

Power is another category where the Px7 S3 and Px8 S2 offer no daylight between them. Both are rated at 30 hours of battery life — a figure that comfortably covers long-haul flights, full workdays, and multi-day trips without needing a recharge, placing them firmly in the upper tier of endurance for premium wireless headphones.

Charging is handled via USB-C on both models, which is the current standard and means users are unlikely to need a proprietary or legacy cable. Neither headphone supports wireless charging, so there is no Qi pad convenience here — but that is a shared limitation, not a differentiator. The non-removable, rechargeable battery is also consistent across both, meaning long-term battery degradation will eventually affect both models equally.

The verdict here is a straightforward tie. Every power-related spec is mirrored exactly between the two headphones, and no advantage can be awarded to either based on the data provided.

Connectivity is where these two headphones finally diverge in a meaningful way. Sharing the same Bluetooth 5.3 foundation, both support aptX Adaptive and aptX Lossless — codecs that deliver high-resolution, low-latency audio over Bluetooth when paired with compatible sources. That common ground is strong. The differences, however, cater to distinctly different user ecosystems.

The Px7 S3 adds LDAC support, Sony's high-resolution codec widely adopted across Android devices. For users in the Android ecosystem who own LDAC-capable smartphones or DAPs, this unlocks a genuine high-fidelity wireless pipeline. The Px8 S2, by contrast, drops LDAC but gains AAC — the codec of choice for Apple devices — making it the more natural companion for iPhone and Mac users. Beyond codec compatibility, the Px8 S2 also includes Auracast support (enabling broadcast audio to multiple listeners simultaneously) and fast pairing, which meaningfully reduces the friction of connecting to a new device.

Neither headphone is universally superior here — the right choice depends on your device ecosystem. Android and high-res audio enthusiasts will find the Px7 S3 better suited to their needs via LDAC, while Apple users and those who value seamless pairing and Auracast flexibility will get more practical value from the Px8 S2. On aggregate, the Px8 S2 edges ahead slightly by covering a broader range of real-world use cases.

When it comes to features, the Px7 S3 and Px8 S2 are built to the same specification sheet. Both deploy an 8-microphone array — a count associated with more accurate voice pickup and stronger ANC performance — alongside noise-canceling microphone technology and an ambient sound mode for situational awareness. The result is a call and transparency experience that is, on paper, identical between the two models.

A few shared omissions are worth flagging for specific user groups. Neither headphone includes in/on-ear detection, meaning audio will not automatically pause when the headphones are removed — a small but noticeable convenience gap compared to competitors that do offer it. Similarly, the absence of a mute function and an in-line control panel may matter to heavy call users who prefer quick, tactile call management without reaching for a device.

With no differentiating spec in this entire group, the conclusion is an unambiguous tie. Any feature-based decision between these two headphones will need to rest on the distinctions uncovered in other spec categories.