GPS is a satellite navigation system primarily used to provide geographic
location information and navigation services. It determines the precise position
of the equipment by receiving signals from multiple satellites in Earth
orbit.
Cellular network is a communication network primarily used to provide voice
calls, text messages, and data services. It relies on ground level cellular
towers to transmit and receive signals, covering cities, rural areas, and other
areas.
Dependency and Coverage:
GPS services can be used almost anywhere in the world with clear sky views,
without relying on ground communication infrastructure.
The availability of cellular services is limited by the location and
density of cellular towers, and coverage is usually poor in remote or
mountainous areas.
Power consumption and connectivity:
GPS typically consumes more power when in use because it requires
continuous reception of signals from multiple satellites.
The power consumption of cellular networks is relatively low, but it may
increase in areas with weak signals as mobile phones increase power to try to
connect to remote cellular towers.
On smartphones and other mobile devices, GPS and cellular networks are
usually complementary in use. For example, when the GPS signal is poor, many
devices will use cellular and Wi Fi networks to assist in positioning, which is
called A-GPS (Assisted GPS). This can improve the speed and accuracy of
positioning.
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