GPS Marker and Accuracy
The GPS marker shows where OMN4 thinks you are and how confident the device is about that position. The marker is a mobile GPS feature; on desktop, you are usually reviewing saved data rather than following a live position.
What The Marker States Mean
- Searching means GPS is on but the app is still waiting for a usable fix.
- Live position means OMN4 has a fix and is drawing your current location.
- Recentre state means you have moved the map away from your live position and can tap GPS to recentre.
- Tracklog state means recording is active or paused.
The Marker Ring
The ring around the GPS marker has a fixed size, thickness, and colour that you set under Settings > GPS Marker. It does not grow or shrink with GPS accuracy. OMN4 shows how confident the current fix is through the GPS button colour instead, described in the next section.
How OMN4 Shows Fix Confidence
OMN4 distinguishes between stronger and weaker fixes. In plain terms:
- A stronger fix is more confident.
- A weaker fix may still be usable, but you should allow for more position spread.
This is shown by the colour of the GPS button, not the on-map marker. The button is green when the fix is good, with accuracy within about 10 m, and orange when the fix is weaker or still settling.
Why The Marker Disappears
If GPS is off or the device is not supplying a usable fix, OMN4 cannot draw a reliable live marker.
Customising The GPS Marker
On mobile, open Settings and then GPS Marker to adjust the marker appearance.
The settings are:
- Outer ring size
- Outer ring thickness
- Outer ring colour
- Internal shading colour
- Direction line thickness
- Direction line colour
These settings change how the GPS marker is drawn. They do not change the device's actual GPS accuracy.
The six marker appearance settings sync through your OMN account. After another mobile device signs in and syncs, it uses the same marker appearance. If you changed a marker setting on more than one device while they were offline, the most recent edit wins.