App displaying positive GPS speed values while not moving

I have an App that shows continuously the current GPS speed and it's updated using a timer (every one second)

The problem is that I have noticed that it continue to show speed values greater than zero for a while despite that the device is not moving (I stand absolutely still)

Any suggestion on how to prevent this?

jim_m_58 over 1 year ago

GPS isn't always exact, and even if you are standing still, there's a bit of a "flutter". You can see this if you view your data in Garmin Connect. The wobble may only be a few feet at a time, but tiy'll get a speed and distance. How much you see can vary based on which Garmin you are using and what settings - like just GPS, GPS+GLONASS, All Systems, etc.

BenChaab over 1 year ago in reply to jim_m_58

thank you, I totally agree with you but I am trying to find a workaround, like displaying 0 if the GPS position hasn't changed for few seconds or something
is it doable? What do you think about it?

jim_m_58 over 1 year ago in reply to BenChaab

The thing is you are seeing speed because the gps location is changing. the wobble may only be a few feet, but it adds up.

If you are recording an activity, pause it when you are stopped.

BenChaab over 1 year ago in reply to jim_m_58

ah ok
thank you

FlowState over 1 year ago

I have a speed threshold for "moving", when running. Anything slower than that, and I display "--:--", "--", or blank for pace/speed.

IIRC I copied Strava and used 30:00/km. (Although it's possible their cutoff was actually 30:00/mile.)

You will see that Garmin's native pace field also has a cutoff, by comparing it to the behavior of your own field at low speeds. Not sure about the native speed field though.

BenChaab over 1 year ago in reply to FlowState

It could be used as a workaround in some scenarios