Near Intersection of I-35 & I-90 Southern Mn.
|I tried an Elf brand (model unknown) with my Apple iPad a few years ago. I was very disappointed, the built in GPS was more accurate. I tried to use it to mark some rocks. I came back with the loader to pick them up but the GPS had them in a neighbors field. Good thing I could follow my tracks that I had made with my S x S earlier that day when I marked them. Maybe it was the software I used but anyway I returned it to Amazon.|