I've owned an Oregan 450 for a couple of years and it has served me well. It has a nice size screen with the entire unit being only slightly larger than the screen. I consired a 62s which is not a touch screen. It has an overall larger size even though the screen is no bigger than the Oregan. While I usually carry the Oregan in a soft case on my backpack belt, it also fits well in your front pants pocket. You can download topo maps to your microchip of most areas of the country for free from various websites. As others have said, the landowner chips are great.