Are the lenses really polarized?

The listing specifies polarized gradient lenses. One buyer disputed the UV protection, so check the lens marking on arrival if UV rating matters to you.

Will these suit a round face?

Yes. The square full-rim shape is the classic pick for round faces, and the adjustable bridge helps with fit.

Do they come with a case?

A case or microfiber pouch is included, per the listing. Which one you get can vary.

How do they compare with the classic Ray-Ban square frames?

The RB4420 is a slimmer metal take on the square shape rather than the thicker acetate styles. It is lighter and more formal-looking, but some owners say it feels less sturdy.

The sunglasses plus a case or microfiber pouch. No extra lenses or cleaning kit are listed.

Are the RB4420 worth it against other Ray-Ban squares?

They are a slimmer, lighter metal take on the square shape than Ray-Ban's thicker acetate frames. You get polarized gradient lenses and an adjustable bridge, but some owners say the build feels less sturdy than the classics.