If you want premium sound with a classic, luxurious aesthetic and responsive smart sensors, choose Bowers & Wilkins FP39691; if you need ultra-lightweight comfort for long sessions, superior battery life, and spatial audio features, choose beyerdynamic AVENTHO 300.
• Bowers & Wilkins FP39691: Best-in-class acoustic tuning from P9 Signature drivers and intelligent "smart power" that wakes on touch; trade-off is a heavier build (0.5 kg) that may feel less ideal for very small ears or extended all-day wear.
• beyerdynamic AVENTHO 300: Legendary STELLAR.45 drivers with Dolby Atmos head tracking and an incredible 50-hour battery life in a featherlight chassis (319 g); trade-off is the absence of the specific soft-touch gold finish found on the B&W model.
• Who it's for: The Bowers & Wilkins pick suits audiophiles who prioritize driver quality and seamless sensor interaction, while the beyerdynamic option is the clear winner for anyone seeking best bluetooth earbuds for small ears (in over-ear form factor), gamers needing zero fatigue, and travelers demanding multi-day power.
The Bowers & Wilkins FP39691, known as the PX, is engineered for the listener who demands a specific sonic signature and a headphone that feels almost like an extension of their own thoughts. At its core lies the drive unit technology borrowed directly from the high-end P9 Signature headphones. This isn't just marketing fluff; it means the audio reproduction is optimized for a natural stereo perspective, with drivers subtly angled to create a wider, more immersive soundstage. If you are someone who listens to complex classical arrangements or intricate jazz tracks where instrument separation is paramount, these headphones deliver a level of detail that feels immediate and organic.
Design-wise, this model leans heavily into a premium, tactile experience. The Soft Gold finish is not merely cosmetic; it signals a build quality that uses robust materials to ensure longevity. The physical design includes rounded earpieces that sit comfortably over the ear, though the total weight comes in at 0.5 kg. This heft is part of the package that provides stability but does mean it might feel slightly substantial if you have a smaller frame or particularly small ears. However, the engineering here focuses on how the headphones interact with your environment rather than just sitting passively on your head.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-24 · 6 min read · Independent comparison
The standout feature for daily users is the "PX Responds to You" system. It utilizes built-in sensors to detect when you lift an ear cup to pause music or when you set the headphones down to enter sleep mode instantly. Pick them up, and they resume playing. This "smart power" logic eliminates the need to fumble with buttons. With up to 22 hours of battery life using active noise cancellation and Bluetooth, or extending to 50 hours in wired mode without ANC, it offers enough endurance for most commutes. It is the perfect companion for the professional who wants their music to work seamlessly alongside their workflow without constant interruption.
The beyerdynamic AVENTHO 300 takes a different approach, prioritizing physical freedom and technological immersion above all else. If you are searching for gaming headphones for small ears, this is likely the device you need. Weighing only 319 grams, it is significantly lighter than many competitors in its class. The ergonomic design features a padded headband with a fontanelle recess and soft memory foam ear pads that conform to the shape of your head. This ensures that even during marathon gaming sessions or long-haul flights, there is no pressure point fatigue. The earcups are slightly angled to match human anatomy, providing a secure fit that stays put without clamping too hard—a critical detail for those with smaller head circumferences.
Sonically, the AVENTHO 300 brings the legendary STELLAR.45 drivers, which are also found in beyerdynamic's studio reference models. These 45-millimeter dynamic drivers deliver rich, detailed audio across all genres. But what truly sets this model apart is the integration of Dolby Atmos and Head Tracking Technology. This creates a three-dimensional soundscape that adapts as you move your head, placing you right in the center of the action. Whether you are watching a movie or playing a game, the audio remains anchored to your position, offering a cinematic experience that standard stereo headphones simply cannot replicate.
Battery life is another area where this product dominates the conversation. With an average life of up to 50 hours, you can go days without charging, making it ideal for travelers or remote workers who cannot afford downtime. It supports multipoint Bluetooth 5.4, allowing you to switch effortlessly between your laptop and smartphone without losing connection. The inclusion of aptX Lossless and aptX Adaptive codecs ensures that high-resolution audio streams are delivered with minimal latency and maximum fidelity. For the user who values connectivity, durability, and a lightweight profile that disappears on the head, the AVENTHO 300 is the definitive choice.
• Best for battery life → beyerdynamic AVENTHO 300: With 50 hours of playback compared to the Bowers & Wilkins' 22 hours with ANC, the beyerdynamic wins for long trips.
• Best for immersive spatial audio → beyerdynamic AVENTHO 300: Only the AVENTHO 300 offers Dolby Atmos and Head Tracking for a true 3D experience.
• Best for classic, warm tonality → Bowers & Wilkins FP39691: The P9 Signature-derived drivers offer a specific, natural stereo perspective favored by traditional audiophiles.
• Best for small ears and comfort → beyerdynamic AVENTHO 300: At 319g with memory foam and a fontanelle recess, it is significantly lighter and more comfortable for smaller frames than the 0.5kg B&W model.
• Best for smart automation → Bowers & Wilkins FP39691: Its unique "lift-to-pause" and "set-down-to-sleep" sensors offer a more intuitive, hands-free interface than touch controls alone.
• Best for wireless connectivity → beyerdynamic AVENTHO 300: Bluetooth 5.4 with multipoint support allows simultaneous connection to two devices, whereas the B&W uses the older 4.1 standard.
• Best for premium aesthetics → Bowers & Wilkins FP39691: The Soft Gold finish and robust aluminum construction appeal to those who want a statement piece.
• Best value for tech features → beyerdynamic AVENTHO 300: You get newer codecs (aptX Lossless/Adaptive), modern Bluetooth, and spatial audio in a much lighter chassis.
After analyzing the specifications and design philosophies of both units, I would buy the beyerdynamic AVENTHO 300. While the Bowers & Wilkins FP39691 is a magnificent piece of engineering with a fantastic driver setup, the physical reality of its 0.5 kg weight makes it less suitable for extended wear, especially for users with small ears. The beyerdynamic model solves this with its featherlight 319g frame and memory foam padding, ensuring you forget you are wearing them entirely. Furthermore, the leap in battery life to 50 hours and the addition of Dolby Atmos head tracking provide a modern, future-proofed experience that the older Bowers model simply cannot match. For the vast majority of listeners today, comfort and advanced spatial features outweigh the subtle tonal differences of the legacy drivers.
Yes, the beyerdynamic AVENTHO 300 is specifically designed for comfort with a lighter weight (319g) and adjustable memory foam that fits smaller frames better than the heavier Bowers & Wilkins FP39691.
Not really, but the beyerdynamic AVENTHO 300 offers up to 50 hours of playtime, which is more than double the 22 hours provided by the Bowers & Wilkins FP39691 with active noise cancellation enabled.
Both feature Active Noise Cancellation, but the beyerdynamic AVENTHO 300 includes transparency mode and adapts to your environment, while the Bowers & Wilkins relies on adaptive settings that customize to your exact preference via the app.
The beyerdynamic AVENTHO 300 supports aptX Adaptive and aptX Lossless, which generally offer lower latency and higher fidelity for gaming compared to the Bluetooth 4.1 connection found on the Bowers & Wilkins FP39691.
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