In depth comparison and review of Sennheiser HD 4.50 BTNC Wireless and Bowers & Wilkins PX. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - USB, 3.5 mm jack | |
|---|---|---|---|
| Weight | 238 g | 335 g | Sennheiser HD 4.50 BTNC Wireless are lighter than Sennheiser HD 4.50 BTNC Wireless headphones. |
| Colour | - | Space grey | Soft gold | |
| Earpad Material | - | Soft leather, memory foam | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.1 | Bowers & Wilkins PX have a more advanced version of Bluetooth than Sennheiser HD 4.50 BTNC Wireless. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Generic Access Profile (GAP), Service Discovery Application Profile (SDAP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX HD | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | Adaptive Noise Cancelling | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 10 - 20000 Hz | Sennheiser HD 4.50 BTNC Wireless offer a larger frequency range than Bowers & Wilkins PX. |
| Total Harmonic Distortion (THD) | <0.5% | <0.3% | Bowers & Wilkins PX have lower total harmonic distortion than Sennheiser HD 4.50 BTNC Wireless. |
| Sensitivity | 113 dB | 111 dB | Sennheiser HD 4.50 BTNC Wireless have higher sensitivity than Bowers & Wilkins PX. |
| Impedance | 18 Ohm | 22 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | Neodymium | - | |
| Features | Bluetooth aptX technology | Bluetooth aptX technology |
| MICROPHONE | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | 6 | Bowers & Wilkins PX have a built-in microphone. |
| REMOTE CONTROL | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Controls | Power on/off, volume control, answer/end, hold, play/pause, next/previous track, reject call, redial | Volume control, on/off, answer/end, play/pause, next/previous track |
|---|
| CABLE | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Cable Type | Headphones cable - detachable - L shaped - 1.4 m Micro-USB charge cable - detachable |
Headphones cable - detachable - 1.2 m | |
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | Yes | Yes | |
| Plated Connector | Gold | - |
| BATTERY AND CHARGING | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 600 mAh | 850 mAh | Bowers & Wilkins PX have a higher battery capacity than Sennheiser HD 4.50 BTNC Wireless. |
| Battery Life | 25 hour(s) | 50 hour(s) | Bowers & Wilkins PX lasts longer on a single charge than the Sennheiser HD 4.50 BTNC Wireless. |
| Battery Life Details | - | Continuous playback (noise cancelling OFF / cable connection): up to 50 hours Continuous playback (noise cancelling ON / cable connection): up to 33 hours Continuous playback (noise cancelling OFF): up to 29 hours Continuous playback (noise cancelling ON / Bluetooth): up to 22 hours |
|
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm 4-pole) USB (USB Type-C) |
|---|
| OTHERS | Sennheiser HD 4.50 BTNC Wireless | Bowers & Wilkins PX |
|---|
| Included Accessories | Carrying case, micro-USB charging cable | Protective pouch, USB charging cable (120cm) |
|---|
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