Bowers & Wilkins PI4 vs Sennheiser IE 300 – Which Headphones Are Better? (2026)

A measured feel. Fits like no other. Donâ€™t miss a thing. Adaptive Noise Cancelling. World-first fully active 2-way wireless earbuds. This is Bowers & Wilkins Dual Driver technology. No matter what youâ€™re listening to, or watching, or playing, hear what you were meant to hear. If you stay out longer than expected and need a little more from your PI4 a 15 minute quick charge will carry your adventure for another two hours. Soft silicone and rubber together make the PI4 feel specifically designed for how and where you listen. 12-hour battery life allows you to go from night to day without missing a beat. If thatâ€™s not enough, a 15-minute quick charge gets three hours of immediate playback. Customised 14mm drivers pack full sound in a small space. Designed by the same team behind our 800 Diamond Series speakers used in Abbey Road Studios, the drivers ensure you stay immersed in music wherever you go.

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

Impedance levels vary (32 ohm vs 16 ohm), which can affect compatibility and audio output when used with different devices. From a usability standpoint, both models provide a reliable and premium headphone experience. The driver size differs between the two (14.2 mm vs 7mm), which can influence sound depth, bass response, and overall audio clarity. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. There is a noticeable difference in weight (40 gm vs 4 gm), which may affect comfort during extended use. 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 PI4 and Sennheiser IE 300 offer different noise cancellation capabilities (Adaptive vs Ambient), which can impact how effectively they block external noise. Bowers & Wilkins PI4 and Sennheiser IE 300 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices.

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: 14.2 mm vs 7mm
Weight: 40 gm vs 4 gm
Impedance: 32 ohm vs 16 ohm

Compare Bowers & Wilkins PI4 with:

Compare Sennheiser IE 300 with:

Key Differences

Top Differences