These are the two headphones most people should consider when spending $350-400 on ANC. Sony's XM6 refines what was already the benchmark; Bose's QC Ultra adds spatial audio and competitive noise cancellation. The gap between them is genuinely small, which makes the choice harder and more interesting.
Sony WH-1000XM6
The Sony XM6 wins on ANC performance and battery life; the Bose QC Ultra edges ahead on comfort and spatial audio.
Specs Comparison
| Spec | Sony WH-1000XM6 | Bose QuietComfort Ultra |
|---|---|---|
| Driver Size | 40mm | 35mm |
| ANC Performance | Class-leading | Excellent |
| Battery Life (ANC on) | 30 hours | 24 hours |
| Weight | 254g | 254g |
| Hi-Res Codec | LDAC | aptX Adaptive |
| Multipoint BT | Yes (2 devices) | Yes (2 devices) |
| Spatial Audio | 360 Reality Audio | Immersive Audio |
| Price | ~$349 | ~$329 |
Noise Cancellation
Sony's XM6 uses a new HD Noise Canceling Processor QN3, which processes environmental noise at significantly higher speeds than the XM5's QN1. RTINGS and What Hi-Fi both note improved mid-frequency attenuation — airplane hum and office HVAC disappear more completely.
Bose's QC Ultra is no slouch — it remains one of the top performers in its class. But in head-to-head tests by multiple reviewers, the XM6 edges ahead, particularly in the 200-500Hz range where human voices and low mechanical hum live.
For pure noise cancellation, the XM6 is the current benchmark. It's not a massive gap over the QC Ultra, but it's real.
Sound Quality
Sony tunes its headphones for a V-shaped response — elevated bass and treble, slight recession in the mids. It sounds exciting and energetic, which most people enjoy. The XM6 improves on the XM5 with slightly better midrange presence.
Bose tunes the QC Ultra warmer — more controlled bass, smoother highs, more neutral overall. It's a different philosophy rather than a worse one. Bose's CustomTune feature adjusts EQ based on your ear geometry with an initial sound check.
If you listen to a lot of podcasts or acoustic music, we'd lean toward the QC Ultra's more natural tuning. For bass-heavy genres and EDM, the Sony's default tune is more satisfying.
Comfort and Build
The Bose QC Ultra wins on comfort — it's one of the lightest full-size ANC headphones at 254g, with earpads that are wider and more oval-shaped than Sony's round cups. Four-hour sessions are comfortable on the QC Ultra; the XM6 starts to feel clamped for some users around the three-hour mark.
Sony's XM6 folds flat and comes with a better travel case. Build quality is comparable — both feel like premium plastic, neither like a $400 luxury product.
For all-day office use, the QC Ultra's comfort advantage is meaningful. For commuting and shorter sessions, it's less important.
Battery and Features
Sony claims 30 hours with ANC on, Bose claims 24 hours. Real-world testing at moderate volume tends to confirm a meaningful Sony advantage — XM6 users typically see 26-28 hours; QC Ultra users see 22-25.
Both support multipoint Bluetooth for two simultaneous device connections. Sony's Speak-to-Chat feature automatically pauses music when you start talking — it's genuinely useful and still more responsive than Bose's equivalent.
Bose's Immersive Audio (spatial audio) is more convincing than Sony's 360 Reality Audio on supported content. If spatial audio matters to you, Bose's implementation is worth experiencing.
Sony WH-1000XM6 Strengths
- Best-in-class ANC, particularly in the mid-frequency range
- 30-hour battery life with ANC enabled
- Speak-to-Chat is the best auto-pause feature in the category
- LDAC hi-res audio codec support
Bose QuietComfort Ultra Strengths
- More comfortable for long sessions — lighter at 254g, wider oval earpads
- Immersive Audio (spatial audio) is more convincing than Sony's equivalent
- Bose CustomTune EQ adjustment for your ear shape
- Warmer, more natural default sound signature
Sony WH-1000XM6 Weaknesses
- Round earpads less comfortable than QC Ultra's oval design for extended sessions
- Sony's spatial audio implementation trails Bose
- App can feel cluttered with features most people never use
Bose QuietComfort Ultra Weaknesses
- ANC performance trails XM6, particularly in mid frequencies
- 24-hour battery life is 6 hours behind Sony
- No LDAC support — Bluetooth codec ceiling is lower
Best For
- a: Frequent flyers and commuters who need the best noise cancellation and battery life
- b: Office workers who wear headphones all day and prioritize comfort and natural sound
FAQ
Can you use both headphones wired if the battery dies?
Yes — both include a 3.5mm cable and a USB-C charging cable. The Sony also supports USB-C digital audio. Wired mode on the QC Ultra is passive (no ANC), while the Sony supports ANC in wired mode via USB-C.
Which is better for phone calls?
The Sony XM6 edges ahead for call quality — the four-mic array handles voice pickup more naturally in windy outdoor conditions. Both are well above average for over-ear headphones.
Is LDAC support worth caring about on the Sony?
Only if you have a compatible Android device and hi-res audio files. LDAC transmits at up to 990kbps versus standard SBC's 320kbps — the difference is audible on good recordings with attentive listening. On Spotify or Apple Music it makes no difference.