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Bowers & Wilkins Px8 S2 vs Sennheiser HDB 630: which should you buy?

On aggregated review scores the Sennheiser HDB 630 comes out ahead with a HearWiki score of 86. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Sennheiser HDB 630 - Outstanding overall at around $450.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Sennheiser HDB 630 leads on 6 of 7 measures.

  • Bowers & Wilkins Px8 S2
  • Sennheiser HDB 630
HearWiki score
85
86
Sound
9.5
9.4
Noise cancelling
8.0
8.2
Battery
8.5
9.7
Calls
7.0
8.5
Value
5.5
8.4
Price (USD)
$800
$450

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Mixed generations

Bowers & Wilkins Px8 S2 (2026) against Sennheiser HDB 630 (2025). Neither is straightforwardly newer: the Bowers & Wilkins Px8 S2 brings Bluetooth 5.3 against 5.2 and Top codec aptX Lossless against aptX Adaptive, while the Sennheiser HDB 630 answers with ANC type Adaptive against Hybrid.

  • Px8 S220261 yr newer
  • HDB 6302025
What differsPx8 S2HDB 630

Platform

Bluetooth
5.3
5.2
Top codec
aptX Lossless
aptX Adaptive
ANC type
Hybrid
Adaptive

Level on: Multipoint pairing, USB-C, Wear detection, Transparency mode, Custom EQ, Companion app.

Specifications

Px8 S2HDB 630
Type
Over-Ear
Over-Ear
Price (USD)
$800
$450
HearWiki score
85
86
Released
2026
2025
Availability
Sold new
Sold new
Driver
2× 40 mm dynamic
42 mm dynamic
Driver type
dynamic
dynamic
Driver size
40 mm
42 mm
Drivers per side
2
1
Frequency response
-
6 Hz - 40 kHz
Sound signature
-
neutral
Impedance
-
480 Ω
Sensitivity
-
105 dB/mW
Bluetooth
5.3
5.2
Codecs
SBC, AAC, aptX HD, aptX Adaptive, aptX Lossless
SBC, AAC, aptX, aptX HD, aptX Adaptive
Multipoint pairing
Yes
Yes
Battery life
30 h
60 h
Battery life (ANC on)
30 h
60 h
Full charge time
-
120 min
Quick charge
15 min → 7 h
10 min → 7 h
Wireless charging
No
No
Active noise cancelling
Yes
Yes
ANC type
hybrid
adaptive
Transparency mode
Yes
Yes
Companion app
Yes
Yes
Custom EQ
Yes
Yes
Wear detection
Yes
Yes
Controls
buttons
touch
Voice assistant
Yes
Yes
Weight
310 g
311 g
Water resistance
-
none
Foldable
Yes
-
Detachable cable
Yes
Yes
USB-C
Yes
Yes
Connector
USB-C
3.5 mm
Microphones
8
4

What reviewers said

Bowers & Wilkins Px8 S2

No summary yet - we haven't aggregated enough reviews.

Sennheiser HDB 630

The Sennheiser HDB 630 is a premium wireless over-ear headphone that prioritizes audio fidelity above all else, pairing a detailed 42 mm driver with adaptive noise cancellation and extensive aptX codec support. Its standout feature is the bundled BTD 700 dongle, which unlocks high-resolution wireless performance, while a long 60-hour battery life and comfortable fit make it suitable for extended listening sessions. Though it lacks water resistance and wireless charging, its balanced tuning and engaging sound make it a top choice for audiophiles on the go.

  • Pro:Excellent, balanced sound quality
  • Pro:Adaptive ANC with strong performance
  • Pro:Support for aptX Adaptive and aptX HD
  • Con:No water resistance
  • Con:No wireless charging
  • Con:Some noticeable sonic quirks in certain settings

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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