GPS vs GNSS: What Is the Difference?

GPS is the US satellite navigation system; GNSS (Global Navigation Satellite System) is the general term for all global satellite navigation systems, including GPS (USA), GLONASS (Russia), Galileo (EU) and BeiDou (China). A "GPS tracker" usually means any satellite tracker, while a "GNSS tracker" specifically uses multiple constellations at once for better accuracy and reliability.

What Is GPS?

GPS (Global Positioning System) is the original US military system of about 30 satellites. It is the most recognized name, which is why most trackers are still marketed as "GPS trackers" even when they use more than GPS.

What Is GNSS?

GNSS includes GPS plus GLONASS, Galileo and BeiDou. A multi-constellation GNSS tracker can see 30–60+ satellites instead of ~10, giving faster first fix, stronger signals in cities and under trees, and higher accuracy.

Which Should You Choose?

For commercial tracking, choose a GNSS tracker that supports GPS + BeiDou + Galileo at minimum. FOFN trackers use multi-constellation GNSS for stable fixes in tough environments like urban canyons and remote areas.