The eTrex Legend. I've used them and they're as accurate as any other, with limitations:
It is a discontinued model, for what that's worth.
The eTrex series has very small screens.
There were several different Legend models. Check out the "Discontinued" product page at the Garmin website to learn the difference between the variations, so you can make sure you're getting what you expect.
https://buy.garmin.com/en-US/US/on-...d/cOnTheTrail-cDiscontinuedOnTheTrail-p1.html
The eTrex series does
not have a plug for an external antenna.
The buttons are hidden on the unit sides, like on many so-called smartphones, and they aren't as well labeled as they could be.
Some Legend models have color screens, indicated by a "c" in the model name. The color makes it much easier to read the tiny screens in daylight.
The basic Legend model does
not have an SD card slot, which may or may not be important to you.
The older Garmin models communicate to computers via a proprietary serial cable. Some new computers and most laptops don't even have serial ports any more, but you can buy a serial-USB adapter.
A big one for me, the eTrex Legend (basic model) does not have a built-in electronic compass. Without it, the GPS can only calculate NSEW directions via satellite based on your movement; it
won't work if you're standing still or turning around in place.
Not trying to discourage you, just putting up the information to help you decide.
I'm certain they're worth $50, but if it were me I'd spend the extra money for a higher end older unit (GPSMAP 76 series or GPSMAP 60 series) or one of the more modern but inexpensive current models.
You can save a bunch of money and get a really nice unit sometimes by shopping for a
recently discontinued model.