on-device settings datafield examples

I'm late to the party and just recently learned about on-device settings.

Does anyone have any suggestions to the Garmin Store on data fields which implements the On-Device settings? I wish to take a look at how this works.

Thanks

note : Have read thru the 

https://developer.garmin.com/connect-iq/core-topics/app-settings/

The example watch face

https://forums.garmin.com/developer/connect-iq/f/discussion/238950/an-app-for-sdk-3-2-and-3-1/1138054#1138054