The GNSS Speedometer app uses the Global Navigation Satellite Systems (GPS, GLONASS, etc) to determine the speed and distance traveled. This is the most accurate speedometer app for Android devices. The accuracy depends on the accuracy of the device's navigation module, as well as weather conditions, terrain, natural and man-made obstacles, and other factors. In any case, your device should "see" some part of the sky for maximum accuracy.

In the upper left corner, the icon of the presence / absence of a satisfactory signal from satellites is displayed. The number of used / visible satellites is displayed in the lower left corner.