Sony WH-1000XM5 headphones are listed at £192 on Amazon UK during Amazon Big Deal Days 2026 — down from £380. That’s a £188 cut, the largest discount yet seen on the former flagship model. The WH-1000XM6, launched as its successor, is also discounted: £319, down from £399. Both are available now, exclusively via Amazon UK, for the duration of Big Deal Days, which runs through Thursday, 10 October 2026. No other regional pricing or availability is confirmed in the reporting.  The XM5 retains all core features: 30-hour battery life with ANC active, DSEE upscaling, 360 Reality Audio support, and LDAC for high-res Bluetooth streaming. It holds a five-star What Hi-Fi? Rating and multiple awards. The XM6 adds incremental upgrades. Improved noise cancellation, a more compact folding design, and refined sound with greater detail and openness, but shares the same headline specs. Neither model is new to this sale cycle. Both were already discounted ahead of Big Deal Days, but the XM5’s current price is unprecedented. For context: the XM4 dropped to £179 in late 2025, and the XM5 launched at £380 in mid-2025. This isn’t a launch. It’s a price inflection point. One that makes the XM5 the most affordable five-star Sony flagship ever sold in the UK. Amazon Big Deal Days ends Thursday. After that, these prices vanish.