A few more hours with the BeatsX and here's my opinion (Compared to the Powerbeats3):
Once you get the cord to lay the way you want (it is a tad long), using the smaller piece to keep it snug in your ear and the medium tips, I find the BeatsX more comfortable.
I was disappointed with the highs and mids at first (bass is great), the BeatsX seem to "open up" the more I listen to them. Battery life is pretty good and I LOVE the convenience of charging with a lightening cable (I don't carry a micro USB in my car for example).
I used compy tips with my powerbeats3 but I don't like them with the BeatsX, the OEM tips are fine. Both pairs sound very similar, the powerbeats3 might sound a TAD better (iPhone 7 with no EQ). Both get plenty loud for me.
In the end, I think I like the BeatsX better, I don't get too sweaty working out and these are more comfortable (not as big and bulky on your ears). I really wish I would have put an order in for Airpods, I want to try them but I hate waiting