https://techcrunch.com/2020/08/20/sony-wh-1000xm4-headphone-review/

There was a mixed reaction among the TechCrunch staff when Sony’s WH-1000XM4 were announced the other week. There was excitement among those looking for new headphones and disappointment for those who’d recently purchased a different pair. The product’s predecessor are pretty universally regarded as some of the best over-ear headphones you can get for the price point, so the biggest question, really, was what the new ones bring to the table.

So let me just say this off the bat. If you own the WH-1000XM3, congrats. You purchased a very good pair of headphones — ones that rightfully helped unmoor Bose from its long-standing position as the default frequent traveler purchase. And no, you don’t need to rush out and upgrade if yours are still hanging in there.