Apple Watch
Using the watch app
The watch's home screen shows today's workout, your week's miles and your race countdown. Tap the workout for its steps, then START.
On a rest day or a strength day it offers FREE RUN. After a run its summary shows your distance, time and pace, and the run goes to your phone.
Swipe across for the watch's settings: Haptics and Mile callouts. Units, voice cues and pace alerts come from the phone.