Main trade-off
Bose QuietComfort Ultra Headphones (2nd Gen)
Volume uses a touch strip. USB input is limited to 16-bit 44.1 or 48 kHz, and analog playback is not passive.
Head-to-head
Bose QuietComfort Ultra 2 vs Bowers & Wilkins Px7 S3: Bose can charge during analog, Px7 uses one port
The short answer
Choose Bose Ultra 2 for a folding travel frame, analog listening while USB power is connected, or independent TV volume with a compatible Bose Smart Soundbar. Choose Px7 S3 for physical volume buttons and up to 24-bit 96 kHz USB playback on a compatible source. Both need power for analog listening. Px7 S3’s analog cable occupies its USB-C port, so charge before that session.
Before you choose
The reasoning and the trade-offs
The analog cable can occupy the port you need to keep listening
On a long trip, Px7 S3’s supplied USB-C-to-3.5 mm cable uses the same headphone socket as its charger. Its manual also requires enough battery and power-on for analog listening. You cannot simply add the ordinary charging cable alongside that analog cable. Bose provides a separate analog socket and explicitly allows USB power during analog use. If your seat has analog audio and you carry a compatible power source, Bose documents the more forgiving setup. Pack both cables. A USB audio source is a different route that lets Px7 play and charge together.
What this is based on
Physical port occupancy combined with powered analog requirements. No unapproved splitter, third-party adapter or battery-runtime extension is assumed.
Main trade-off
Bowers & Wilkins Px7 S3
The supplied analog cable occupies USB-C, disabling the ordinary charging path during that session. Analog playback also disables the volume and play/pause buttons.
Bose QuietComfort Ultra Headphones (2nd Gen)
- Choose it for
- You need analog audio while connected to USB power. Bose documents using the separate connections together.
- You have a compatible Bose Smart Soundbar and want separate headphone and room volume through SimpleSync.
- Main trade-off
- Volume uses a touch strip. USB input is limited to 16-bit 44.1 or 48 kHz, and analog playback is not passive.
Bowers & Wilkins Px7 S3
- Choose it for
- You prefer physical volume buttons and want up to 24-bit 96 kHz USB playback from a compatible source.
- You accept that its analog cable uses the charging port and requires a charged, powered-on headphone.
- Main trade-off
- The supplied analog cable occupies USB-C, disabling the ordinary charging path during that session. Analog playback also disables the volume and play/pause buttons.
About this comparison
Bose Ultra 2 vs Bowers Px7 S3 for travel, a shared TV and wired listening. Compare charging while using AUX, USB limits and controls you can find by touch.
These premium over-ear ANC headphones are plausible alternatives for the same commuter or home listener. The decision turns on connection details and daily handling, rather than a claim that one driver specification guarantees better sound.
Winner by situation
Start with what you need it to do
Use an analog seat connection while supplying USB power
Bose documents simultaneous use. Px7’s supplied analog cable occupies its USB-C charging socket.
- Bose QuietComfort Ultra Headphones (2nd Gen)
- Better fit
- Bowers & Wilkins Px7 S3
- Caution
Use physical volume buttons with Bluetooth
Px7 provides buttons. Bose uses a touch strip. Px7’s advantage does not apply in analog mode.
- Bose QuietComfort Ultra Headphones (2nd Gen)
- Caution
- Bowers & Wilkins Px7 S3
- Better fit
Send supported 24-bit 96 kHz audio over USB
Px7 accepts that input. Bose accepts 16-bit 44.1/48 kHz. This is not an audible-quality guarantee.
- Bose QuietComfort Ultra Headphones (2nd Gen)
- Caution
- Bowers & Wilkins Px7 S3
- Better fit
Share TV audio at separate volumes with a compatible Bose Smart Soundbar
Bose documents this through SimpleSync. Other source arrangements need their own compatibility check.
- Bose QuietComfort Ultra Headphones (2nd Gen)
- Better fit
- Bowers & Wilkins Px7 S3
- Depends
What matters in practice
The differences that matter
The analog cable can occupy the port you need to keep listening
On a long trip, Px7 S3’s supplied USB-C-to-3.5 mm cable uses the same headphone socket as its charger. Its manual also requires enough battery and power-on for analog listening. You cannot simply add the ordinary charging cable alongside that analog cable. Bose provides a separate analog socket and explicitly allows USB power during analog use. If your seat has analog audio and you carry a compatible power source, Bose documents the more forgiving setup. Pack both cables. A USB audio source is a different route that lets Px7 play and charge together.
How we reached this conclusion
Physical port occupancy combined with powered analog requirements. No unapproved splitter, third-party adapter or battery-runtime extension is assumed.
Tactile controls help on a commute, then disappear in Px7’s analog mode
If you dislike swiping an earcup to change volume, Px7 S3’s physical buttons are a useful everyday reason to choose it. Keep the connection mode in view. Bowers says volume and play/pause buttons do not work through the analog interface, leaving those controls to the source. Its Quick Action button can cycle noise control or act as the voice-assistant shortcut depending on your app setting. For someone frequently switching between a phone and an aircraft socket, choose on the whole routine rather than assuming the button layout behaves the same everywhere.
How we reached this conclusion
Control mapping and analog-mode restrictions applied to source switching. No claim about gloves, impairment, error rate or accessibility certification is made.
A shared living room and a high-resolution desk have different connection priorities
For a compatible Bose Smart Soundbar, Ultra 2 can keep the room and headphone volume independent. That can settle a disagreement over TV volume without changing the soundbar. At a USB desk, Px7 S3 instead accepts up to 24-bit 96 kHz input, above Bose’s 16-bit 44.1/48 kHz limit. Choose that for an actual source requirement, not a promised audible improvement. Px7 disconnects Bluetooth in USB mode, so its two-device wireless support does not establish simultaneous wired music and phone calls.
How we reached this conclusion
Two concrete source requirements compared with documented compatibility and mode limits. No higher-resolution sound-quality or TV-latency winner is inferred.
Check your own setup
Which headphones work with the way you listen?
Start with the way you listen. USB charging is not the same as USB audio, and some headphones need power even with a cable. These choices are examples until you apply yours.
Bose QuietComfort Ultra Headphones (2nd Gen)
Meets these checksBluetooth listening.
Bowers & Wilkins Px7 S3
Meets these checksBluetooth listening.
Battery figures are manufacturer claims for the stated mode, not measured travel time. Volume, codec, calls and battery age change runtime. Closed earcups can still leak sound. Weight alone does not predict comfort. USB audio needs a compatible source and cable. This check does not assess sound quality, microphone quality or amplifier power.
Choice A
Bose, QuietComfort Ultra Headphones (2nd Gen)
QuietComfort Ultra Headphones (2nd Gen)
You need analog audio while connected to USB power. Bose documents using the separate connections together.
- Best matched use
- You need analog audio while connected to USB power. Bose documents using the separate connections together.
Checked facts
- Analog input and charging: Separate 2.5 mm audio input and USB-C power. Concurrent use documented
- Analog without battery power: Not supported
- Digital USB input: 16-bit, 44.1 or 48 kHz
- Volume controls: Capacitive volume strip
Choice B
Bowers & Wilkins, Px7 S3
Px7 S3
You prefer physical volume buttons and want up to 24-bit 96 kHz USB playback from a compatible source.
- Best matched use
- You prefer physical volume buttons and want up to 24-bit 96 kHz USB playback from a compatible source.
Checked facts
- Analog input and charging: Supplied analog cable connects to the headphone USB-C port
- Analog without battery power: Not supported
- Digital USB input: Up to 24-bit, 96 kHz
- Volume controls: Physical volume buttons, inactive with the analog interface
Meaningful differences
What changes the fit
| What changes | Bose QuietComfort Ultra Headphones (2nd Gen) | Bowers & Wilkins Px7 S3 | Why it matters |
|---|---|---|---|
| Analog input and charging | Separate 2.5 mm audio input and USB-C power. Concurrent use documented | Supplied analog cable connects to the headphone USB-C port | Bose can keep the analog session powered. Px7’s normal charging socket is occupied by that audio cable. |
| Analog without battery power | Not supported | Not supported | Neither is a passive backup just because an analog cable is included. |
| Digital USB input | 16-bit, 44.1 or 48 kHz | Up to 24-bit, 96 kHz | Px7 accepts a higher-resolution input. That is not a listening-test verdict. |
| Volume controls | Capacitive volume strip | Physical volume buttons, inactive with the analog interface | A preference for buttons only helps in the modes where those buttons work. |
| Bluetooth during USB | Documented switching between USB and Bluetooth | USB connection automatically disconnects Bluetooth devices | Do not read two-device Bluetooth support as automatic phone-call mixing during USB playback. |
| Private TV volume | Independent volume with a compatible Bose Smart Soundbar via SimpleSync | Source-dependent Bluetooth or wired connection | Check the existing TV equipment before treating either as a complete shared-room solution. |
What you give up
Every choice has a cost
If you choose Bose QuietComfort Ultra Headphones (2nd Gen)
- The separate-TV-volume benefit requires compatible Bose equipment. It is not a universal feature of every television connection.
If you choose Bowers & Wilkins Px7 S3
- The physical controls are an advantage in supported modes, not every mode. Assigning the Quick Action button to voice assistant also changes its noise-control shortcut.
Recommendation switch
The decision flips if...
Analog travel audio must continue while USB power is available
Choose Bose QuietComfort Ultra Headphones (2nd Gen). Bose keeps separate sockets and documents the concurrent-power route.
Physical Bluetooth controls and high-resolution USB input are the priorities
Choose Bowers & Wilkins Px7 S3. Px7 meets those specific requirements. Its analog mode still requires power and disables those volume controls.
What matters in practice
Before you choose
You want a wired backup for travel without giving up easy charging. Bose keeps separate analog and charging sockets. Px7 S3 uses its USB-C socket for the supplied analog cable, so that route occupies the charging connection.
What this comparison cannot tell you
- No comparative ANC, tonal preference, call isolation or comfort result is claimed. Neither has verified battery-free analog playback.
What the facts say
What the comparison shows
Useful conclusions from the current headphones comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Bose QuietComfort Ultra Headphones (2nd Gen) |
|
| |
| Bowers & Wilkins Px7 S3 |
|
|
Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Bose QuietComfort Ultra Headphones (2nd Gen)
You need analog audio while connected to USB power. Bose documents using the separate connections together.
You have a compatible Bose Smart Soundbar and want separate headphone and room volume through SimpleSync.
See price & reviews on AmazonBowers & Wilkins Px7 S3
You prefer physical volume buttons and want up to 24-bit 96 kHz USB playback from a compatible source.
You accept that its analog cable uses the charging port and requires a charged, powered-on headphone.
See price & reviews on AmazonLinks open in a new tab.