Some Chinese USB adapters have a hidden SIM that will send a text message with GPS coordinates to track an unknowing victim…https://twitter.com/wk_tyn/status/894789440584929281 …
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I never got a working gps fix with cheap Chinese Android phones even. Only high end ones.
This is unrelated to the chips and has more to do with bad design (the biggest factor in GPS). Computing power needed is trivial as well.
Now I'm curious how cheap GPS receivers work, since I'm only (somewhat) familiar with the workings of high-precision stuff.
Especially simple for devices that won't be moving about a lot (like a plug charger) that compensate immediate inaccuracy over hours.
A tracking device that only works when someone leaves it plugged in several hours seems like it would have limited usefulness...
You're talking about it as if we were not seeing twenty variants of it for sale. As if it was hypothetical :) It's right there.
I'm skeptical that they work as advertised, especially the cheap ones.
Businesses that market to stalkers are not known for ethical advertising.
It's advertising what the basic functionality for any GPS plugged into a wall indoors at least 1 hr while would've (*any*, as it's basic)
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