What is geolocation?

In the EU it is permissible but conditional. You need a defined purpose such as fleet safety or dispatch efficiency, a lawful basis that is normally legitimate interest rather than consent for employees, a written policy the staff have seen, a data protection impact assessment, retention limits, and no monitoring outside working hours. Tracking the person rather than the vehicle is where employers reliably get into trouble.

Outdoors with a clear sky, satellite positioning lands within about five metres; in dense city streets it can drift by tens of metres; indoors it effectively stops working and wireless positioning takes over at a similar accuracy. Address-based location for desktop visitors is city-level at best. Design processes to tolerate error — confirm arrival with a scan or a tap rather than a coordinate alone.

Continuous high-precision tracking will consume a noticeable share of a battery over a shift, which is why field workers disable apps that do it carelessly. Well-built applications sample adaptively — often while moving, rarely while stationary — and use lower-power sources when precision is not needed. Ask any supplier for measured battery consumption over an eight-hour shift before signing.