Sony WH-1000XM6 vs Bose QC Ultra: which flagship ANC headphones actually win

Two of the best noise-cancelling headphones money can buy in 2026, but they're built for slightly different ears and different days. Here's the honest breakdown.

The short version

Both of these are flagship noise-cancelling headphones and both cost roughly the same once you factor in the sales that show up every few months at Noel Leeming and PB Tech. The Sony WH-1000XM6 sits around $589-$650 NZD depending on where you catch it, and the Bose QuietComfort Ultra Headphones (2nd Gen) land in a similar $549-$649 NZD range. Neither is a budget buy, and neither is a bad one — this comparison comes down to how you actually use headphones, not spec sheets.

Noise cancelling: closer than the marketing suggests

Sony has held the ANC crown for years and the XM6 keeps that reputation, just barely. In independent loudness testing the XM6 knocks out around 87% of average ambient noise versus roughly 85% for the Bose. That is a real but small gap — in a noisy Wellington cafe or on an Auckland-Wellington flight, both will make the world go quiet enough that you forget you are wearing them. Where Sony pulls ahead is adaptability: its auto-scene detection reacts faster to changing environments, like walking from a quiet office into a windy street.

Bose is not behind by much, and some people genuinely find its ANC feels smoother rather than stronger, with less of that pressurised ear-sensation some Sony wearers report on long flights.

Sound signature

Sony tunes for punch — more weight in the bass and a lifted top end that makes pop, hip-hop and most streaming-quality audio sound immediately impressive. It also gives you a proper 10-band EQ in the Sony Headphones Connect app, so if you do not like the default signature you can reshape it substantially. Bose goes for a flatter, more neutral profile that is closer to how the recording engineer intended it to sound. If you listen to a lot of acoustic music, podcasts, or just want headphones that do not colour everything, Bose is the more honest set of ears. If you want headphones that make Spotify sound exciting, Sony wins.

Battery life and everyday practicality

• Sony WH-1000XM6: around 30 hours with ANC on — genuinely class-leading, and it means most people charge once a week rather than daily.
• Bose QuietComfort Ultra: around 24 hours with ANC on — still solid, but noticeably behind Sony on paper. In practice this is the difference between charging on Sunday night for the week versus needing a mid-week top-up if you are a heavy daily commuter.

Both fold flat, both come with a hard case, and both support multipoint Bluetooth pairing so you can jump between your laptop and phone without manually reconnecting.

The verdict

If you are buying for long-haul flights, marathon work-from-home sessions, or you just have a smaller head and get sore easily — get the Bose QuietComfort Ultra. The comfort advantage is the kind of thing you feel every single day, and the neutral sound signature ages well if your taste in music changes.

If you want the longest battery life, the strongest outright noise cancelling, and a sound signature that makes casual listening feel more fun out of the box — get the Sony WH-1000XM6. It is also the better pick if you are already in the Sony ecosystem (a Sony TV, a Sony soundbar) since the app and multipoint handling tend to play nicer together.

Either way, do not pay full RRP. Both models get discounted regularly enough in NZ that patience saves you fifty to a hundred dollars — check current prices before you commit.