Sony SRS-NS7 vs Bowers & Wilkins PI4 – Specs, Price & Comparison (2026)

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.

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.

Key Differences

Impedance levels vary (32 ohm vs NA), which can affect compatibility and audio output when used with different devices. 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. 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 318 Gm), which may affect comfort during extended use. 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. 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. Bowers & Wilkins PI4 and Sony SRS-NS7 offer different noise cancellation capabilities (Adaptive vs Passive), which can impact how effectively they block external noise.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred 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