My original Pebble purchase decision was made thinking "This will be great, I can use it while commuting to see who's calling or messaging my phone, so I can decide whether to pull over to respond or not!" I had a 35-40 minute each commute where I rode a motorcycle every day back then.

Turns out, the number of times I pulled over to return a call or message was precisely never. There was nothing so important that I could do anything about it by the side of the road, or that couldn't wait half an hour till I got to work/home.