Question: is beidou better than gps?
Answer: The idea to develop Beidou, or the Big Dipper in Chinese, took shape in the 1990s as the military sought to reduce reliance on the Global Positioning System (GPS) run by the U.S. Air Force. ... When complete, Beidou's location services are accurate down to 10 cm in the Asia-Pacific, compared with GPS's 30-cm range.