Google engineered an improved GPS route tracking system for the Pixel Watch 5 using 3D building models, AI, global reference stations, and cloud data compression.

Key Details

• Combined 3D building data from Google Maps with AI to minimize urban signal reflections.
• Utilized Google's global network of GPS reference stations to correct satellite and atmospheric errors.
• Compressed raw GPS data on-device and offloaded processing to Google Health server infrastructure to preserve battery life.
• Pixel Watch 5 route tracking accuracy matched ground truth control data, outperforming Apple Watch Ultra 3 and Garmin Fenix 8 Pro in testing.

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