The Samsung Galaxy Watch 5 and Pro have the same GPS specs as the Galaxy Watch 4: GPS, GLONASS, Galileo, and BDS (BeiDou). The Apple Watch Ultra features L1 and L5 GPS, GLONASS, Galileo, QZSS, and BeiDou. To understand the difference, let’s look at what these systems are.
GPS, which is Global Positioning System, is the U.S. government’s satellite-based navigation system with 31 satellites in its roster. GLONASS is Russia’s satellite navigation system with 22 satellites, Galileo’s the EU’s navigation system with 24 satellites, QZSS is Japan’s satellite system with 5 satellites, and BeiDou or BDS is China’s with 35 satellites.
Signals from so many satellites ensure you receive accurate location tracking across the globe, but these satellites transmit signals at varying frequencies or bands. L1 is the oldest band, and most devices use this. Although pretty accurate, it’s not great at receiving signals through obstacles like buildings, mountains, bridges, and trees.
The L5, however, is a newer signal that’s more accurate than L1, especially in denser environments like cities. Combining the L1 and L5 bands results in superior GPS tracking — ideal if you require consistent GPS accuracy or live in a place with poor GPS coverage.
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