The Garmin Edge 20 is designed to update and replace the older Edge 200, as the new baby of the bunch.
It’s smaller, lighter and has greater functionality. Accuracy is also improved, as the unit can access the GLONASS satellites.
If you need a really simple bike GPS, this could be the one for you.
Want to be able to record heart rate and/or cadence too? Try the next one up – the Edge 25.
You can track and record your time, your distance and your speed, and even download and follow courses using a “breadcrumb” style navigation.
It’s also waterproof, and IPX7 rated, with an 8 hour battery life, so this could be the ideal unit if you’re looking to upgrade from using your smartphone.