Recent bought a rino 700, to replace a android phone with Ozexplorer and a 5 watt 80 channel UHF. The android phone with Oziexplorer, is well in the lead there, but the polling feature and GPS combination on the UHF radio makes it all a very useful tool for the safety when fossicking with others. You can poll other radios you have linked to by either transmitting to or by a simple press of the poll button and presto their location shows up on the screen and yours on their screen. A nice feature is the transflective screen on those sunny days. If it was a android, GPS and polling UHF radio device it would be the bees knees, but garmins proprietary software is its only letdown to me.