Well for me PS4 pro numbers are far more impressive than Xbox one x, considering the time it was announced and launched. I mean PRO announcement was outside of E3 no hype conference, just a press meet. Also competing against newly announced PS4 slim, PSVR, xbox one S and before the launch Nintendo Switch was unveiled.
the other point is people were perfectly satisfied with their regular PS4 unlike xbox one which had inferior resolution, so xbox crowd desperately needed something better and sony had like 2 months marketing and that too they were afraid not to piss off existing PS4 buyers who had just bought a regular PS4, And MS went all out with X for like 18 months in terms of building the hype.
So I feel the numbers for xbox one X should have been better or that PRO numbers are better. Remember Even Kinect at $150 sold well initially