[Bug]: Distance Mismatch Between Actual Distance and SDK Distance

Required Reading

• Confirmed

Plugin Version

5.1.1

Mobile operating-system(s)

• iOS
• Android

Device Manufacturer(s) and Model(s)

Samsung A36

Device operating-systems(s)

Android 16

React Native / Expo version

0.85.3

What happened?

The distance is not being calculated accurately while the user is moving. There is a noticeable difference between the actual walking distance and the distance returned by the SDK.

Plugin Code and/or Config

const DISTANCE_FILTER_METERS = 3;
const DESIRED_ODOMETER_ACCURACY_METERS = 20;

geolocation: {
      desiredAccuracy: BackgroundGeolocation.DESIRED_ACCURACY_HIGH,
      distanceFilter: DISTANCE_FILTER_METERS,
      disableElasticity: true,
      desiredOdometerAccuracy: DESIRED_ODOMETER_ACCURACY_METERS,
      locationUpdateInterval: 3000,
      fastestLocationUpdateInterval: 1000,
      activityType: BackgroundGeolocation.ACTIVITY_TYPE_FITNESS,
      pausesLocationUpdatesAutomatically: false,
      locationAuthorizationRequest: 'WhenInUse',
      showsBackgroundLocationIndicator: true,
    },

Relevant log output

Start by reproducing the distance mismatch with the reported React Native configuration on the listed devices and operating systems, then collect relevant SDK logs; the issue currently provides no log output or named source files. Done means the discrepancy is reproduced and its cause or an agreed expected-distance behavior is documented.