Ice Cream Jonsey wrote:

(In seriousness though, I have no idea how I'd ever notice vibrations on a watch while riding, nor is there anything they can do to make me think, "Oh, a left turn" versus a right. Couple that with the fact that the GPS I do use - my phone's - loves to give me the instruction on when to turn five feet before the intersection... and, well, I just don't see how this highly-touted feature of watches works. So Stew is right after all.)