With the Cateye Stealth 50 bike computer I can set a screen to show heart rate, cadence, speed, and local time, I can then change to a screen that shows the trip mileage, then to another with trip 2, then total miles, then a stop watch that displays time moving (so if you stop to rest that time doesn't count toward moving time).
I can also put the bike computer in my pocket and use it to track distance, speed, route, heart rate on a walk.