How to choose a suitable GPS Tracker
There are many different types of GPS trackers on the market, each with its own features and capabilities. Some trackers are small and portable, while others are larger and more rugged.
More accurate than GPS: New navigation system accurate to 10 centimeters
Researchers have developed an alternative positioning system that is more powerful and accurate than GPS, especially in urban environments., this new mobile network infrastructure achieved an accuracy of 10 centimeters, nearly 100 times more accurate than existing satellite navigation.