Current market price Oakley x-metal Juliet.

[Diamond Joe]

Here's a size comparison pic from O Review:
L-R: Romeo, Mars, Juliet, XX, Penny, and the last 3 what you're asking about; Romeo 2, Half X, X Squared

So I'd say Half X look closer to X Squared

 

[Pistofernandez]

Amazing, thanks a lot this is what I was looking for

Here's a size comparison pic from O Review:
L-R: Romeo, Mars, Juliet, XX, Penny, and the last 3 what you're asking about; Romeo 2, Half X, X Squared
View attachment 1155812
So I'd say Half X look closer to X Squared