It slipped out of my hands and fell 2 or 3 feet to a hardwood floor when I was about to charge it. :( Anything to be concerned about or that I need to check to make sure I didn't break it?
There shouldn't be a problem as long as the screen is intact. Fenix 5X case is plastic so that it can absorb such shocks but display is inside a metal frame and if it's survived I don't think there'll be a problem. But you can check general state. For example, get a GPS fix, start stop an activity and also you can check alti/baro readings as a shock can move or vibrate membrans of barometer.