High-accuracy data collection is often a requirement when adding and inspecting assets on a map. While your phone can provide a location accuracy of a few meters, high-accuracy GNSS receivers can ensure submeter, or even centimeter level accuracy when collecting data. On this Field Snack, we break down the basics of high-accuracy data collection—covering basic definitions and terminology, the ArcGIS data model for GPS metadata, and how GNSS receivers can be paired with Esri field apps. Additional resources To the Sea, Safely (ArcWatch article) Prepare for high-accuracy data collection (Field Maps) Prepare for high-accuracy data collection (Survey123) Use a high-accuracy receiver (QuickCapture) Prepare for high-accuracy data collection (AppStudio)