Edge 1030 (IQ v3.0.5) small data field width is 140, not 141 as in documentation

I spent a good while debugging why an app doesn't display correctly in Edge 1030. I was checking device type by the data field width.
In emulator width is 141. In documentation https://developer.garmin.com/connect...de/appendices/ it is 141. Device prints it as 140.