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

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. Impedance levels vary (32 ohm vs 16 ohm), which can affect compatibility and audio output when used with different devices. If you're comparing Bowers & Wilkins PI4 and Sennheiser IE 300, both models offer a strong combination of sound performance, comfort, and modern wireless features. 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. The driver size differs between the two (14.2 mm vs 7mm), which can influence sound depth, bass response, and overall audio clarity. 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.

Verdict: Choosing between Bowers & Wilkins PI4 and Sennheiser IE 300 depends on whether you value better sound, longer battery life, or enhanced features.

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

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Key Differences

Top Differences