ArcGIS Pro 2.6 API Reference Guide
WGS84 Property
Example 

ArcGIS.Core.Geometry Namespace > SpatialReferences Class : WGS84 Property
Gets a WGS 84 (wkid = 4326) spatial reference object.
Syntax
public static SpatialReference WGS84 {get;}
Public Shared ReadOnly Property WGS84 As SpatialReference
Example
SpatialReference wgs84 = SpatialReferences.WGS84;
bool isProjected = wgs84.IsProjected;     // false
bool isGeographic = wgs84.IsGeographic;   // true
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

SpatialReferences Class
SpatialReferences Members