Am looking to get a Wifi 6 range extender to reach an external wifi camera, some distance from the router, which is behind a thick stone wall.

I'm looking at the RE505X and RE500X, and also the RE605X and RE600X.

Can someone please explain the difference between the 05 and 00 versions, they appear identical, except for the external aerials.

And also is the 600 series better than the 500 series?

Many thanks.