
Sennheiser HDB 630
Score: 87/100
Bowers & Wilkins Px7 S3 Blue
Score: 87/100Rankings

The Sennheiser HDB 630 is a premium wireless over-ear headphone offering hybrid adaptive ANC and up to 60 hours of battery life with high-resolution audio support. Its substantial weight of 950 g and firm headband pressure can cause fatigue during long sessions. It is best suited for audiophiles and frequent travelers who prioritize sound quality and long endurance.

The Px7 S3 offers high-resolution audio with 40 mm bio-cellulose drivers, eight-mic ANC and 30 hours of battery backed by 15-minute quick charge, plus Bluetooth 5.3 with aptX Lossless support. Its 300 g weight, tight clamping and non-foldable design can be uncomfortable for extended wear. Best suited for travelers and audiophiles who value sound fidelity and robust features.
| Attribute | ![]() | ![]() |
|---|---|---|
60 hoursbest | 30 hours | |
42 mmbest | 40 mm | |
| ↓ lower better | 950 g | 300 gbest |
480 Ωbest | 33 Ω | |
105 dB SPLbest | — | |
730 mAhbest | — | |
| ↓ lower better | 120 minutes | 15 minutesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(2) | ||
Bluetooth Version | 5.2 | 5.3 |
Supported Audio Codecs | SBC, AAC, aptX, aptX HD, aptX Adaptive | aptX Lossless, aptX Adaptive, aptX HD, AAC, SBC |
Battery & Power(2) | ||
Battery Life (hours) | 60 hours | 30 hours |
Charging Time (minutes) | 120 minutes | 15 minutes |
Audio(3) | ||
Frequency Response | 6-40000 Hz | 10-30000 Hz |
Driver Size (mm) | 42 mm | 40 mm |
Impedance (Ω) | 480 Ω | 33 Ω |
Build & Design(3) | ||
Weight (g) | 950 g | 300 g |
Dimensions (H×W×D) (mm) | 49 x 36 x 5 mm mm | 206x156x48 mm mm |
Ear Cushion Material | Synthetic leatherette | Memory Foam |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the HDB 630 for its neutral, detailed sound signature, robust hybrid ANC, and exceptional battery life, while noting the weight and headband pressure as comfort concerns for larger heads.
Everyday users appear satisfied with the long battery endurance and high-resolution audio performance, though the limited consumer review data prevents a full picture of long-term user experience.




Professional reviewers commend the Px7 S3 for its refined, high-resolution audio, powerful 40 mm bio-cellulose drivers, and robust ANC implementation. They also praise the extensive codec support, long battery life with rapid charging, and the high-grade 24-bit DAC/amplifier. Criticisms focus on the relatively tight clamping force, a slightly pressurized ANC feel, and the headphone's heavier weight compared with leading competitors.
Everyday users echo the professional praise for sound quality and battery longevity, noting the headphones feel secure and comfortable for commuting. Recurring complaints center on the clamping pressure during extended wear, a sense of pressurization from ANC, and the product's heft relative to lighter alternatives.