I generally don't, but I do slip up on occasion. It's also useful and safer when checking directions, even more so than a GPS suction-cupped to the windshield.

I generally don't, but I do slip up on occasion. It's also useful and safer when checking directions, even more so than a GPS suction-cupped to the windshield. Glancing at my wrist is much less of a context switch than looking at a screen. I don't think any of the Fitbits have any kind of integration like this.