WH-1000XM5SAB for 180€ or the WH-XM6B for 370€?

I've recently come across a deal for the XM5SAB for only 180€, and tought it mught be a better value then the xm6 for 370€.

I've heard incerdible things from both headphones, and since most people dont think the diference is massive, I'm inclined towards the XM5.

What should I buy?