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.
It can tell you where your target spends the night, which is surely one usage case the intended market would be interested in.
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But it probably can't tell you where they plugged in at a coffee shop for a quick charge or where they're sitting in the airport.
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I guess that's what the ones with a camera are for. In case that's a requirement.
End of conversation
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