Best high-end headphones with noice cancellation ...

Hello! For me, BOSE and SONY headphones are the best in sound quality and design.

Build quality on the Sony WH-1000XM4 is poor.  My pair’s headband broke after a year of moderate daily usage.

Hello. And how about Shure SRH840? What do you think about this model?

I went to can jam in New York pre pandemic just to listen to all the anc headphones that were at the show. Listened to every offering in the hall and ended up buying the sennheiser pxc -550.  Bose did not exhibit at that show and I have their first generation anc cans, not very good sound but good anc. I was surprised I ended up with the sennheisers but they sounded best to me over the Sony’s and all the other brands. I think headphone sound is very person dependent because of head shape and personal preference. The pxc 550 have great battery life and good Bluetooth connection. I use mine with a iPod touch so I would assume they would work well with a apple phone.  Nothing better than putting them on your head and getting to listen, I was surprised at the difference in sound from all the different brands.