Bowers & Wilkins PX5 vs Sennheiser IE 300 – Full Comparison & Verdict (2026)

These sleek, on-ear headphones keep out the world so you can live fully in yours. Experience world-class sound with the latest adaptive noise cancellation technology. The PX5 is light and compact while delivering sound quality built on Bowers & Wilkinsâ€™ exacting standards. One battery charge for just over a full day of music. If you need more power, a 15-minute quick charge provides five hours of audio playback. The PX5 obeys your every move. Lift an earcup to hear whatâ€™s happening around you and the music automatically stops. Put it back and the music plays on. From the bustle of the city to the drone of an aeroplane, adaptive noise cancellation automatically shields you from the outside world so you can hear more of the music that matters. The woven carbon fibre composite arms of PX5 share design principles with the world's most advanced sports cars. Light, stiff and ultra-durable, take True Sound anywhere with these compact noise-cancelling headphones.

Air Traffic Control. Professionally inspired. Itâ€™s All About Connection. Detailed Sound Everywhere. Total Harmonic Distortion < 0.08 % ( 1 kHz, 94 dB ). Resonator chamber to remove masking resonances. German-made 7mm XWB transducer â€“ for natural balanced sound. Newly developed membrane foil for minimized natural resonances. Adjustable flexible ear hooks and a choice of ear adapters incl. memory foam. Para-aramid reinforced cables with gold-plated MMCX connectors and a 3.5 mm plug.

Key Differences

The frequency response differs (10 Hz - 30000 kHz vs 6 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Bowers & Wilkins PX5 and Sennheiser IE 300 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. The driver size differs between the two (35 mm vs 7mm), which can influence sound depth, bass response, and overall audio clarity. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. From a usability standpoint, both models provide a reliable and premium headphone experience. There is a noticeable difference in weight (241 gm vs 4 gm), which may affect comfort during extended use. Bowers & Wilkins PX5 and Sennheiser IE 300 offer different noise cancellation capabilities (Adaptive vs Ambient), which can impact how effectively they block external noise. Impedance levels vary (20 ohm vs 16 ohm), which can affect compatibility and audio output when used with different devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.

Top Differences

Noise Cancelling: Adaptive vs Ambient
Driver Size: 35 mm vs 7mm
Weight: 241 gm vs 4 gm
Impedance: 20 ohm vs 16 ohm

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Key Differences

Top Differences