Treadmill vs. Watch

First treadmill run, two very different numbers recorded by the apartment gym treadmill and my watch. I am not sure which to trust more; the apartment gym treadmill is pretty beat up and if it loses accuracy over time I would bet, based on the trend of other amenities, that it's not particularly well maintained.

Just trusting the minimum — I walked as I got my music set up and then turned the treadmill to about a flat 11-minute pace. Went for 3.6 to cover the small bit of walking.

Treadmill felt harder than outdoors, and I know I won't make a habit of it but wanted to start sprinkling them in so it's not a shock to the system when I need to do an indoor long run on an icy Cleveland winter day.