‘ve trusted the Garmin Oregon 400t and 450t on every backcountry hiking trip that I’ve done in the last four years. It has a rugged case, it’s completely waterproof and submersible, and it has tolerated temperatures from -10 to 110 degrees Fahrenheit, which means that even after trips in Chilean Patagonia, Morocco, Nepal, Vietnam, Alaska, Iceland, and, the Democratic Republic of the Congo, mine has never stopped working. You can also use the touch screen with gloves on.
It has its problems. The touchscreen can be finicky and hard to see in daylight. I wish it came preloaded with topo maps for every country on Earth. It won’t estimate hiking distance taking elevation into account. There’s no way to make it beep after every mile traveled.
But, I haven’t found anything better. WB