The Strollometer comes with rave reviews and retails for $39.95 from Baby Earth. It tracks your current and average speeds, how far you've done, how long it's taken you and how many miles you've clocked that day. It will also give you the real time and temperature.
The device has you covered on every aspect of your own physical fitness when you're out taking your little one for a stroll and you can even tell is how many miles you'd like to walk/run and it will let you know when you've reached your goal! Even if it's a mini-computer, it's still nice to hear you're doing something right. Pick up yours at Baby Earth.
(image: Baby Earth)