I know, but it would certainly be significant if it was.
As a side note, I noticed that the SM6W01 will be replacing the SM100V-AC, which is a talking smoke alarm (demo here). The manual for the SM6W01 doesn’t say anything about it talking, so that might be a lost feature.
The SM6W01 is also replacing the SM300-AC, which is a dual ionization and photoelectric sensor, and the SM6W10 is replacing the SM105-AC, which is an ionization smoke alarm. All of the new smoke alarms are photoelectric, so First Alert might be finally discontinuing their ionization technology.