Pre ordered the Sport. My plan is to use it for exactly that... sport. Right now I use a iPod Nano with a bluetooth dongle and wireless headphones when I'm running. The Nano is getting long in the tooth and a new one is pretty $ so that's why I ordered the Apple Watch. From what I gather I can load music (hopefully podcasts) to the watch and that's great. I also would like to have something like Nike Fitness that has basic distance, duration etc. I know if I have my phone it'll use the GPS to provide all that but will there be anything that is close like Nike Fitness on the iPod? My whole fitness use for the watch is coming down to not having the iPhone with me. If I have to have my phone to even use it while running then there's very little use (for me)I can see. I just don't like having my phone with me while running.