Sony has been making noise-canceling headphones for years, and it's gotten pretty good at it. We had very few complaints about Sony's WH-1000XM3 headphones, so there wasn't much to fix in the latest iteration. Still, Sony listened to customer feedback and made several notable improvements in the new WH-1000XM4. They still sound phenomenal, but Sony added wear detection, some new Bluetooth tricks, and made the noise cancelation even more effective. At the same time, the XM4s look almost identical to the last-gen headphones. They don't look ugly or cheap, but the design isn't as striking as I'd expect from the best noise-canceling headphones on the market.