The accuracy depends on many factors, including whether a VPN or Proxy Server is being used, and what kind of location data permissions end users have permitted in their browsers when accessing signed documents.

Users have reported location accuracy discrepancies of:

• less than 250 feet (75 meters)
• less than 250 miles (400 kilometers)
• more than 250 miles (400 kilometers)
  
• more than 2,500 miles (4,025 kilometers)

Some implementations have chosen to hide this information after finding high percentages of locations are of questionable accuracy and Users are alarmed rather than reassured when they review the map(s).

Statistics for different countries around the world can be see at https://www.maxmind.com/en/geoip2-city-accuracy-comparison (Odoo uses the GeoLite2 API) where they report that for the United States 36% of locations are "incorrect" on average.

Odoo can be customized to use a different API for geolocation detection - contact your Odoo Business Advisor or an Odoo Partner for more information.