Intro
As of September 2026, the over-ear ANC decision most people still type into Google is Sony WH-1000XM5 versus Bose QuietComfort Ultra. Sony has moved the flagship baton to the WH-1000XM6, and Bose has refreshed the Ultra line as QuietComfort Ultra Headphones (2nd Gen) — so this comparison pits the still-widely-sold XM5 (now a value flagship) against Bose’s current Ultra over-ears.
Specs below come from Sony support pages, Bose product/spec pages, and major reviews (Tom’s Guide, Trusted Reviews, SoundGuys). Battery numbers are manufacturer claims; real-world ANC-on runtime varies with volume, codec, and Immersive / spatial modes.
Spec table
| Spec | Sony WH-1000XM5 | Bose QuietComfort Ultra (2nd Gen) |
|---|---|---|
| Type | Over-ear wireless | Over-ear wireless |
| MSRP / late-2026 street (US) | Launched ~$399; commonly ~$250–$300 street | $449 list; often ~$399–$449 |
| Weight | ~250 g (8.82 oz) | ~264 g headphone (Bose lists ~0.583 lb) |
| ANC | Dual-processor Adaptive ANC; Auto NC Optimizer; 8 mics (Sony marketing) | Adjustable / adaptive ANC; CustomTune-class fit calibration (Bose) |
| Bluetooth | 5.2 | 5.4 |
| Codecs | SBC, AAC, LDAC | SBC, AAC, aptX Adaptive (per Bose/review coverage); USB-C wired lossless path |
| Multipoint | Yes | Yes |
| Battery (ANC on, claim) | Up to 30 hrs (40 hrs ANC off) | Up to 30 hrs Quiet/Aware; ~23 hrs with Immersive Audio |
| Quick charge | Yes (Sony: minutes of charge → hours of play; full ~3.5 hrs) | Full charge ~3 hrs; listen while charging via USB-C |
| Folding | Fold-flat earcups into case (no classic hinge fold like XM4) | Case-friendly folding design |
| Spatial / immersive | 360 Reality Audio (content-dependent) | Bose Immersive Audio / Cinema Mode |
| App | Sony Sound Connect / Headphones Connect | Bose App |
| Wired | 3.5 mm cable; passive mode supported | 3.5 mm cable; USB-C wired audio on 2nd Gen |
Noise cancelling
Bose still sets the expectation for continuous low-frequency drone — airplane cabin, bus rumble, HVAC. Independent reviews of the Ultra line (and early 2nd Gen coverage) consistently put Bose at or near the top for raw isolation.
Sony XM5 is excellent for daily commute and office chatter, with more granular ANC / ambient controls in the app and Auto NC Optimizer. In most quiet-office and transit tests the gap is small; on long flights the Bose edge is the one frequent flyers notice.
Neither erases sharp speech or sudden alarms completely. Fit (seal) matters as much as the chipset — try both if your ears are between sizes.
Sound & codecs
- Sony: more flexible EQ in-app; LDAC for Android high-res wireless when the phone supports it; DSEE Extreme upscaling. Tuning is engaging and bass-capable without being a one-note “bass can.”
- Bose: tuned for an immediate “wow” clarity and vocal presence. Immersive Audio is polarizing — great for some movies/playlists, unnecessary for podcasts. 2nd Gen’s USB-C wired lossless path is the clear win for desk listening from a compatible source.
iPhone users: both run AAC. Codec differences matter more on Android (LDAC vs aptX Adaptive).
Comfort, calls, build
Clamp force and pad shape are personal. Bose traditionally wins all-day comfort polls; XM5 is light (~250 g) and fine for most heads, with some pressure hot-spots after multi-hour sessions.
Calls: vary by firmware and environment. Recent comparisons often give Sony a mic-isolation edge outdoors; verify with a real call in wind before you decide for work-from-coffee-shop use.
Build note: XM5 hinge durability has been a long-running community complaint versus metal-reinforced successors. XM6 addresses that if you want the newest Sony; the XM5’s counterweight is the much lower street price.
Who should buy which
| Buy the Sony WH-1000XM5 if… | Buy the Bose QC Ultra (2nd Gen) if… |
|---|---|
| You want flagship-class ANC/features for ~$280 | ANC comfort on planes is the #1 priority |
| You use Android + LDAC and deep EQ | You want USB-C wired lossless + Immersive Audio |
| Multipoint + app tinkering matter | You prefer Bose’s default tuning and plush clamp |
| You’re fine owning last-gen hardware on purpose | You’re buying new and want Bose’s current Ultra stack |
Verdict: If the street price gap stays ~$100+, most value-minded buyers should take the WH-1000XM5. Choose QuietComfort Ultra (2nd Gen) when maximum ANC comfort and Bose’s current feature set matter more than saving money — or when USB-C wired listening is part of your desk setup.
If you want the newest Sony hinge/mic package, step to WH-1000XM6 (typically nearer Bose’s price). First-gen QuietComfort Ultra units may still appear on clearance; confirm generation before you compare list prices.
FAQ
Are either good for working out?
Not ideal. Sweat and a gym fit favor sport headphones or buds. These are commute / travel / desk cans.
Can I listen wired on a plane?
Yes — both include analog cables (check tip size). ANC behavior while wired depends on power state; Bose 2nd Gen also supports USB-C wired audio when the source allows it.
Which is better for iPhone?
Both work well over AAC. Feature gaps show up more on Android (LDAC) and in Bose Immersive / Sony 360 content ecosystems.
Should I buy XM5 or wait/buy XM6?
Buy XM5 when discounted and you accept last-gen hinges. Buy XM6 when you want the current Sony flagship and are paying near Bose money anyway.