Handheld GPS, suitable for boating or bushwalking. Most other shops sell them for $200-$300.
It seems to be an old model (released in 2012 as far as I can tell). I'm sure most people use their phones for this stuff, but someone might need a dedicated device.
I don't know much about them, I don't own one and have never used one.
I'd probably want one that includes What3Words:
https://en.wikipedia.org/wiki/What3words
Not that I am planning on getting lost in the bush or anything but it is much easier for search-and-rescue to find ppl with that, e.g.
https://www.smh.com.au/national/three-random-words-saved-cor…