I have two of those old Kellyco ones that came with a detector. Do not like them, long and awkward and have to set the threshold (PITA). So I never used them but a couple times.
Then I saw an ad for the Tek-Point (same thing as F-Pulse) and you can probably find a couple posts I made about how I like it. But it's like $120. Now I use it always, even before digging to get the exact spot.
My two cents cryptocurrency (not worth much), if you are thinking you don't need a good one, you probably don't need one at all. Probably just a waste of time to pull the thing out to use because the cheap ones don't do much.