Bose QuietComfort Ultra vs Sony WH-1000XM5: Which Headphones Should You Buy in 2026?

Two Great Headphones — One Changed Market

The Bose QuietComfort Ultra (1st Gen) and Sony WH-1000XM5 were two of the most popular premium noise-cancelling headphones of their generation. Both offer excellent active noise cancellation, comfortable over-ear designs, strong sound quality, transparency modes, Bluetooth multipoint, and useful smartphone apps.

But there is an important difference in 2026: neither model is the current flagship anymore. Bose has released the QuietComfort Ultra 2nd Gen, while Sony has moved on to the WH-1000XM6. That changes the buying decision considerably.

The first-generation Bose QC Ultra can still make sense when heavily discounted because it remains excellent at noise cancellation, comfort, portability, and everyday travel. The Sony WH-1000XM5 can also be a strong value option when its price drops significantly.

So which one should you actually buy?

Bose QuietComfort Ultra 1st Gen: What Are You Getting?

The Bose QuietComfort Ultra was introduced as Bose's flagship over-ear noise-cancelling headphone in late 2023. Its biggest selling points were never simply the number of features. Bose focused heavily on:

• Active noise cancellation
• Comfort
• Customizable listening modes
• Bose Immersive Audio
• CustomTune
• Travel portability
• Premium wireless audio features

The headphones also support Bluetooth multipoint, allowing two source devices to remain connected at the same time. Bose added multipoint support through a software update in 2024.

The QC Ultra uses a folding design, which gives it an advantage for people who travel frequently. That advantage becomes even more important when compared with headphones that take up more space inside a bag.

Sony WH-1000XM5: What Are You Getting?

The Sony WH-1000XM5 was Sony's premium flagship noise-cancelling headphone before the arrival of the XM6. Sony built the XM5 around:

• Strong ANC
• 30-hour battery life with ANC
• LDAC
• Multipoint
• Adaptive sound features
• Speak-to-Chat
• Quick Attention
• Wearing detection
• DSEE Extreme
• Strong microphone performance

Sony officially states that the XM5 uses four microphones on each earcup for noise cancelling and includes automatic noise-cancelling optimization based on wearing conditions and the environment. Sony

The XM5 also supports LDAC, Sony's higher-bitrate Bluetooth codec, and can connect to two Bluetooth devices simultaneously.

Price: The Most Important Part in 2026

Originally, these headphones were positioned as expensive flagship products. The Bose QC Ultra launched at approximately $429 in the US, while the Sony WH-1000XM5 launched around $399. What Hi-Fi? notes that the Bose originally sat above the XM5 in price. What Hi-Fi?

But those launch prices are no longer the most important numbers. Both headphones are now previous-generation products. That means their value depends heavily on discounts.

Our rule for 2026

Don't buy the QC Ultra 1st Gen simply because it was once a $400+ flagship. And don't buy the XM5 simply because it was once Sony's flagship. Instead, compare their current prices against the newer models.

Design and Build Quality

Bose QC Ultra

The Bose QC Ultra uses a lightweight over-ear design with a folding mechanism. Its major advantage is portability.

What Hi-Fi? praised the folding design and found the QC Ultra comfortable for long listening sessions, while noting that the construction does not feel quite as luxurious as some more expensive metal-heavy competitors. SoundGuys measured the headphones at around 253g and highlighted the lightweight construction as an advantage for daily use. What Hi-Fi? SoundGuys

The design combines plastic exterior components with metal reinforcement in important areas. That means calling it simply a "plastic headphone" would be misleading. At the same time, it does not have the same all-metal feel as some premium competitors.

Sony XM5 Design

The XM5 weighs approximately 250g according to Sony's specifications. It is lightweight and comfortable, but its design is different from the Bose.

One important difference is portability. The Bose QC Ultra folds in a more traditional compact way, while the XM5's newer hinge design does not provide the same type of folding arrangement. Sony focuses more on a minimalist appearance. The XM5 also uses touch controls instead of relying primarily on physical buttons.

Comfort

Comfort is one of the strongest reasons to buy the Bose. The QC Ultra has relatively low weight, generous ear cushions, and a well-balanced clamping force. What Hi-Fi? rated its comfort highly and found it suitable for long listening sessions. SoundGuys also emphasized the lightweight 253g design and soft padding. What Hi-Fi? SoundGuys

The Sony XM5 is also very comfortable. But if comfort is your number-one priority, the Bose gets the slight advantage.

• Best for long flights? Bose.
• Best for long work sessions? Bose or Sony.

This category is close enough that head shape, glasses, ear size, and personal preference can change the result.

Active Noise Cancellation

This is probably the strongest reason to choose the Bose. Bose has a long history with ANC, and the QC Ultra continues that reputation.

What Hi-Fi? found the Bose slightly better than the XM5 in noise cancellation during its direct comparison, particularly with low-frequency environmental noise. SoundGuys also found the QC Ultra highly effective at reducing environmental noise and reported approximately 87% reduction for certain real-world noises such as bus engines, train noise, and airplane noise under its testing methodology. What Hi-Fi? SoundGuys

However, these numbers should not be interpreted as a universal guarantee. ANC performance depends on:

• Ear shape
• Ear-pad seal
• Glasses
• Head movement
• Environment
• Frequency of the noise
• Test methodology

So we would not say: "Bose destroys Sony in ANC." That is too strong. A more accurate conclusion is:

The Bose QC Ultra has a slight overall ANC advantage, while the Sony XM5 remains one of the strongest ANC headphones in its class.

ANC winner: Bose QC Ultra

Transparency / Aware Mode

Both headphones have transparency modes. Bose calls its main transparency experience Aware Mode. SoundGuys found the Bose Aware mode quite natural and useful in environments such as streets and cafes. Bose also provides ActiveSense, which can automatically adjust the experience when environmental sounds become louder. SoundGuys

Sony's Ambient Sound mode is also very good. The difference here is relatively small.

Sound Quality

This is where the comparison becomes much more complicated. There is no single objective answer to: "Which sounds better?" Different independent reviewers have reached somewhat different conclusions. And that's exactly why you should be careful with absolute statements.

Bose Sound

What Hi-Fi? praised the Bose for its rich presentation, full-bodied sound, punchy bass, dynamic delivery, and detailed presentation. At the same time, What Hi-Fi? described the Sony as leaner and more transparent.

RecordingNOW went even further, finding the QC Ultra significantly improved after EQ and describing its sound as highly detailed and enjoyable after adjustment. That is a useful observation, but it is still an expert listening opinion rather than a universal measurement. What Hi-Fi? RecordingNOW

What Does SoundGuys Say?

SoundGuys takes a more measurement-oriented approach. Its testing found the QC Ultra generally good for an ANC headphone but also identified issues involving distortion and channel matching. It also found that the Immersive Audio effect did not necessarily improve the listening experience. SoundGuys

This doesn't necessarily contradict subjective reviews. A headphone can have imperfect measurements and still sound extremely enjoyable. Likewise, a headphone can measure very well while a listener personally dislikes its tuning.

EQ Changes the Bose Experience

The QC Ultra includes a three-band EQ in the Bose app. This allows you to adjust bass, midrange, and treble. This matters because some listeners find the stock Bose tuning too bass-heavy. Reducing the bass and adjusting the midrange and treble can produce a more balanced presentation. So the Bose QC Ultra should not be judged solely on its factory tuning.

Sony Sound

The Sony XM5 has a different character. What Hi-Fi? praised its clarity, detail, precise bass and natural presentation. In the direct comparison, What Hi-Fi? preferred the Sony for overall sound quality while describing the Bose as richer and fuller.

Sony also includes DSEE Extreme, which is designed to process compressed audio. And the XM5 supports LDAC, which can provide higher-bitrate Bluetooth audio with compatible devices. Sony says LDAC can transmit roughly three times the data of conventional Bluetooth audio. What Hi-Fi? Sony

Sound Quality Verdict

Bose CustomTune vs Sony Sound Processing

Bose uses CustomTune technology to personalize the headphone's audio and noise-control experience based on the user's ear characteristics. That means two people can potentially perceive the same headphone somewhat differently.

Sony takes a different approach through technologies such as DSEE Extreme and its sound-processing ecosystem. This is another reason why a specification sheet alone cannot tell you which headphone will sound better to you.

Immersive Audio vs Sony Spatial Features

Bose introduced Immersive Audio with the QC Ultra. It provides two main modes:

• Still — The virtual sound stays positioned in front of you even as you move your head.
• Motion — The virtual presentation changes with your head movement.

The concept is interesting. But whether it actually improves music is another question.

What Hi-Fi? found Bose Immersive Audio somewhat unconvincing and noted that it reduces battery life. SoundGuys similarly found that Immersive Audio changed the experience more than it improved it and noted some audio-quality compromises. What Hi-Fi? SoundGuys

Battery Life

This is one of the easiest categories to decide.

Sony officially rates the XM5 at:

• 30 hours with ANC ON
• 40 hours with ANC OFF

Bose rates the original QC Ultra at:

• 24 hours with Immersive Audio OFF
• 18 hours with Immersive Audio ON

Interestingly, SoundGuys measured the Bose at 27 hours and 37 minutes in its standardized test. That demonstrates why manufacturer ratings and independent measurements should be kept separate. The official Bose rating is still the correct figure to use when describing what Bose promises. Sony Bose SoundGuys

Battery winner: Sony WH-1000XM5 — If you travel frequently or simply hate charging your headphones, Sony is the safer choice.

Charging

Both headphones use USB-C for charging. The Bose QC Ultra supports quick charging, with Bose stating that a 15-minute charge can provide around 2.5 hours of playback under the relevant conditions. Sony's XM5 can also provide several hours of playback from a short charge when used with a suitable USB-PD setup. Sony states that three minutes of charging can provide up to three hours of playback.

USB-C Audio

This is an important weakness of both first-generation models. The Bose QC Ultra 1st Gen has a USB-C charging port, but it cannot be used as a USB digital audio connection. What Hi-Fi? specifically lists the lack of USB-C audio as a drawback. The Sony XM5 also does not provide USB-C audio playback. What Hi-Fi?

This becomes important in 2026 because newer flagship headphones increasingly offer USB-C digital audio.

Bluetooth and Codecs

Bose

The first-generation QC Ultra supports:

• SBC
• AAC
• aptX Adaptive
• Snapdragon Sound-related features on compatible devices

Bose's own launch materials state that Snapdragon Sound enables aptX Adaptive, including lossless and low-latency capabilities with compatible devices. Bose

However, codec support does not mean every phone will automatically use the highest-quality option. Your phone, Bluetooth hardware, operating system, and codec compatibility all matter.

Sony

The XM5 supports:

• SBC
• AAC
• LDAC

Sony officially lists LDAC support and describes it as capable of transmitting substantially more data than conventional Bluetooth audio. Sony

For Android users with compatible devices, LDAC is a major reason to choose Sony. For iPhone users, codec differences become much less significant because iPhones do not use LDAC or aptX Adaptive as their standard Bluetooth audio codec.

Calls and Microphone Quality

Bose improved the QC Ultra's microphone system compared with earlier Bose flagship headphones. The QC Ultra has multiple microphones designed to improve voice pickup and background-noise handling. It performs well for calls.

But What Hi-Fi? directly compared the Bose with the XM5 and preferred the Sony for call clarity and background-noise reduction. What Hi-Fi?

That makes Sony the safer choice if you spend a lot of time on work calls, on Zoom, on Google Meet, on phone calls, or in noisy environments.

App Experience

Bose Music App

The Bose app gives you access to EQ, listening modes, Immersive Audio, firmware updates, shortcuts, and ANC customization. The interface is relatively simple. That's good if you want something easy. The downside is that Bose's EQ is relatively basic.

Sony Sound Connect App

Sony's app provides a larger feature ecosystem. Depending on the features available for the model and software version, you can access things such as:

• Equalizer
• Adaptive Sound Control
• Ambient Sound settings
• Speak-to-Chat
• Connection management
• Firmware updates
• DSEE-related features
• Multipoint controls

Sony has a more feature-heavy ecosystem.

Multipoint

Both support Bluetooth multipoint. That means you can connect to two devices at the same time. For example: Laptop + smartphone — you can listen to music on your laptop and answer a phone call without manually disconnecting and reconnecting. This is an important feature for people who work from a laptop.

Portability

This is one of Bose's underrated strengths. The QC Ultra folds into a compact shape and comes with a travel case. What Hi-Fi? specifically praised the folding design for travel and commuting. What Hi-Fi? If you travel regularly: Bose makes more sense.

Durability and Reliability

This category requires careful wording. There have been recurring online reports concerning the Sony XM5 hinge and structural durability. However, individual user reports should not be treated as proof that every XM5 will fail.

There are documented owner reports of hinge-related failures, so buyers concerned about long-term physical durability should consider the design carefully. But saying "XM5 hinges always break" is an unsupported absolute.

The Bose QC Ultra also is not indestructible. Neither headphone has an official IP water-resistance rating that makes them suitable for heavy rain or sweaty workouts. SoundGuys specifically notes the lack of an ingress-protection rating on the QC Ultra. SoundGuys

Water Resistance

Neither headphone should be treated like a sports headphone with a strong IP rating. The Bose QC Ultra has no official IP rating. That means: avoid rain, sweat-heavy workouts, and water exposure. If you need headphones specifically for exercise or outdoor conditions, look for a model with an explicit water-resistance rating.

What About the Bose QC Ultra 2nd Gen?

This is the biggest reason the first-generation QC Ultra needs to be discounted in 2026. Bose's second-generation model adds several meaningful improvements. According to Bose, the QC Ultra 2nd Gen provides:

• Up to 30 hours of battery life
• Lossless USB-C audio
• Improved adaptive noise cancellation
• Cinema Mode
• Improved on-head detection
• Automatic Bluetooth standby
• USB-C charging while listening

What Hi-Fi? also found the second generation to be an improvement over the original, particularly in features and noise cancellation. Bose What Hi-Fi?

But does that make the original bad? No. It simply changes the price you should be willing to pay. The QC Ultra 1st Gen can still be an excellent purchase when its discount is large enough.

What About the Sony WH-1000XM6?

Sony has also moved forward. The XM6 is the successor to the XM5 and is therefore the more relevant current-generation Sony option.

That doesn't make the XM5 obsolete. In fact, previous-generation flagship headphones can become extremely attractive when their prices fall. That's why the XM5 should be judged based on: XM5 price vs XM6 price — rather than simply XM5 vs QC Ultra 1st Gen.

Our Final Verdict

There isn't one universal winner. The Bose QuietComfort Ultra 1st Gen is the better choice if your priorities are: ANC + comfort + portability. The Sony WH-1000XM5 is the better choice if your priorities are: battery + calls + Sony's features + LDAC.

What makes the decision more interesting in 2026 is that both headphones are now previous-generation models. That means the discount is part of the product.

If the Bose QC Ultra 1st Gen is significantly cheaper than the QC Ultra 2nd Gen, it can still be an excellent purchase. If the Sony XM5 is heavily discounted compared with the XM6, it can also be an excellent purchase. But if either previous-generation headphone is priced too close to its successor, the newer model usually makes more sense.

Bottom Line

The Bose QuietComfort Ultra 1st Gen and Sony WH-1000XM5 are still good headphones. They simply aren't the newest headphones anymore. That distinction matters.

The Bose remains especially attractive for people who value comfort, ANC and travel. The Sony remains attractive for people who value battery life, calls, LDAC and a feature-rich software experience.

But in 2026, don't buy either one based solely on its original reputation. Check the current price, compare it with the successor, and then choose according to your priorities.

That's the real difference between buying a previous-generation flagship and buying an outdated headphone.