Hello! Thanks for reading and for the question!
You said comfort is really important to you…that’s very wise for movie-watching, since those are usually around two hours long!
Let’s skip right to what I personally think the most comfy headphones are. First, we have to cut the M50X. While I think it’s pretty comfy for a studio pair, there are many out there who disagree with me. And that makes sense, because everyone’s head is different. The HRM-5’s main advantage is that it’s more comfortable for most people in its stock form.
So then(With review links):
Bose QC35 (I think the 25 is a tiny bit more comfy due to its lighter weight! so that’s why I’ve included both here).
These headphones above are, in no particular order, the most comfy headphones I’ve ever worn. They’re the top tier I think about when evaluating comfort of other models. A few others might be in this same league, but these are my current personal favorites.
And I think they all have a good sound signature for movie-watching, so it just depends on what you need features-wise, and which one appeals to you as far as style goes.
Each of these has a sound that’s going to push the right frequencies to make movies fun and engaging, and still sound good for music too.
The QC35’s best assets are their comfort, and their ease-of-use. It’s very easy to connect them to two devices, and their app makes it easy to change settings in a non-cluttered way. If you’re doing a lot of mobile/phone listening, and wireless is important, then I think they’re the comfiest wireless headphones for most folks. I know I went back and forth about this in my Sony 1000X review, but I think that’s more due to how those fit me personally, and not what will be good for most users.
If you don’t mind having a cord, it’s kind of a toss up between the others. The QC25 offers a slightly more balanced sound than the 35, and a cheaper price. The MDR-1A has a really luxurious bass tone to it, and a light, easy fit. The Custom One Pro has a lot of fun customization features, and you can really crank up the bass if you’re in that sort of mood, or turn it down if you’re not.
All of these have replaceable pads that are easy to get ahold of. The Custom One Pro has the advantage of being compatible with pads made for the DT770/990 as well, so if you wanted to get some of Beyerdynamic’s famously comfy velour pads, you could easily experiment.
The only other advice I’d give is to buy from somewhere with a good return policy, if you can. Just because I think something is super comfy and sounds great, there’s no guarantee you’ll love it too.
I hope this helped you out! Thanks again for the thorough question!