Why GPS shows incorrect result. How to correct it?

Why GPS shows incorrect result. How to correct it?

Our location finding technique is so far better, have below three different way to get locate its work even device always keep GPS and internet off. – We are supporting below three ways to find location of device.

a. using GPS (very accurate about 50 meter, but may not work in device inside building)
b. using device internet (accurate about 100 Meter, need internet availability)
c. using device cellular tower information. ( work without internet, GPS, but low accuracy about 1-5KM)
To get accurate result we would suggest to enable “Settings >> Location and security >> Use wireless networks”.