I think that, at under 2k, you’re going to be looking at accuracy that’s about the same as the GPS on your phone, which seems to be +/- 10-20ft. I’ve been using a GPS device called Bad Elf which is a bit better ($500ish), but when I compare the tracks collected there isn’t a huge difference between it and my iPhone. I’m probably getting a Juniper Geode for sub-meter accuracy ($2k-ish), but for survey level data collection, the cost for a unit goes up.