Garmin - Handheld cover

Advantages Small, Brightly Coloured, Splash-proof
Disadvantages Limited functionality, memory

...to about 20 feet on a good day, with the degree of accuracy depnding on how many satellites the receiver can pick up a signal from. It's worth pointing out that the satellite signals are not particularly strong so receivers only work when they have a clear view of the sky so around the city, along narrow streets or even under dense foliage, you may struggle. It is capable of measuring not only your lattitude and longitude but your altitude as well. Combine this with the ability to take snapshots of your location while you are travelling and you have a device that is capable of tracking your route in 3 dimensions as you travel. The basics of GPS covered, what good is a hand-held receiver like the Garmin eTrex? Now is probably as good a time as any to give a brief description of the unit. It's about the size of an older mobile phone, measuring... Read review