Summary: It is definitely protective and with it in place I do not fear to drop my GPS. I find, however, that I don't actually use it for a number of reasons. It is bulky and makes it hard to just shove into a pocket. It obscures the buttons so I can't effectively and easily utilize the GPS unit. It doesn't protect the face of the unit at all. So - if I were to have it to do over, I might buy, instead, a belt-mounted holster for the unit.
Summary: Locks on very quickly, even indoors. Display is adequate for most applications. The operating system seems to hang-up from time to time, particularly when entering new waypoints. I find the function of the keys un-intuitive and it's easy to get onto the wrong page. The database is extremely limited....just a few of the bigger cities are included. It is a good, "bottom end" hikers GPS, but not a great one. I don't think I would have bought it had I tried it first.
Summary: For a simple, hand-held GPS this moderately priced little one works well. It replaces earlier models of the eTrex and the older mounts (for bicycle, car) no longer work. But the menus are easy to navigate and an earlier problem of the screen not having enough contrast to be read in bright sunlight has been corrected.
Summary: I chose this GPS based on price and accuracy. It's quite accurate, but it has only around 7MB (Yes, megabytes, not gigabytes) of user available space. I can find 4GB USB flash drives for 99¢ all over the internet, I wonder what their reason for putting only 10MB of memory in the GPS could be. I bought the GPS for Geocaching, It's too short on memory to get much use out of it for that. It can hold around 900 caches before complaining about low memory.
Summary: I needed a GPS to survey the shoreline around a lake. The project was to record "many" waypoints, with each one marked as gravel, sand, rock, or muck. The resulting data needed to be transferred to a spreadsheet, along with total feet of shoreline with each type of lake bottom. The Etrex 10 did exactly that. The Etrex 10 records waypoints using the button on the top right front of the device.
Summary: Upon opening the package and reviewing the contents, I decided to return it and spend more money for a better unit. This is very basic and does not include much in the way of topography mapping or map points.