Is an XDJ similar to a CDJ?

I want to make the step up from a FLX4, but CDJs are extremely expensive. I have my eye on a few XDJ’s, and i’m wondering if they’re similar in terms of features, so that if i was ever asked to play on CDJ’s i wouldn’t be out of my depth having never used them as I had an XDJ setup at home, if that makes sense.

Thanks in advance.