I started using the Oregon 450 that I bought and compared to my smartphone. For me, the electronic compass is exactly what I need. It ate through my smartphones battery pretty quickly.
The cache's I went to retrieve were in a wooded park. There is A LOT of poison ivy, Virginia creeper, fire ant piles, etc....that I had to walk around. With the smartphone I was 0/3 but with the 450 I was 3/3. I took the advice of when you hear it "beep", turn on the compass and follow the arrow. That made it MUCH easier and my 2 boys and more fun this time finding the caches