Bowers & Wilkins PI4 vs Sony SRS-NS7 – Specs, Price & Comparison (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.

Hands-free calling. IPX4 splash-proof design. Silicone neckband and soft-feel rear. Enjoy wireless personalized home theater audio. Flexible and ergonomic form-fitting design for all-day wearing. Up to 12 hours of battery life, 10-minute Quick Charging for 1 hour of play time. Create your own personal home theater atmosphere using Sonyâ€™s 360 Spatial Sound Personalizer. Upward-facing X-balanced speaker unit provides an immersive listening experience without disturbing others. USB Type-CÂ® Charging Cable360 Spatial Sound Personalizer creates Dolby AtmosÂ® Cinematic surround sound.

Key Differences

Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. The frequency response differs (10 Hz - 30000 kHz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. If you're comparing Bowers & Wilkins PI4 and Sony SRS-NS7, both models offer a strong combination of sound performance, comfort, and modern wireless features. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Impedance levels vary (32 ohm vs NA), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (40 gm vs 318 Gm), which may affect comfort during extended use. Bowers & Wilkins PI4 and Sony SRS-NS7 offer different noise cancellation capabilities (Adaptive vs Passive), which can impact how effectively they block external noise. The driver size differs between the two (14.2 mm vs 32 X 33 mm), which can influence sound depth, bass response, and overall audio clarity. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices.

Verdict: Choosing between Bowers & Wilkins PI4 and Sony SRS-NS7 depends on whether you value better sound, longer battery life, or enhanced features.

Top Differences

Noise Cancelling: Adaptive vs Passive
Driver Size: 14.2 mm vs 32 X 33 mm
Weight: 40 gm vs 318 Gm
Impedance: 32 ohm vs NA

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Key Differences

Top Differences