I have recently just bought a the solo pros and the studios so here’s my opinion on them
I feel like the sound quality is the same really no noticeable diffrence
I think noise cancelling is a tiny bit better on the solos then the studios
The studios definitely have more bass and more depth by a lot then the solos do
So In conclusion I think the studios are just the better headphone in general and if you get the solos you won’t get the same experience as you would with the studios but if you just want headphones to watch YouTube or for plane rides I think the solos are the way to go!