Spark 4730s props vs 4730f

[dudleyjohn]

I've seen these 2 types of propellers in various places. Is there any difference between them?

 

[msinger]

DJI only made one version of the props for the Spark The model number is 4730F.

I noticed Advexure (an authorized DJI dealer) has them listed as 4730S here on Amazon. Perhaps it's a typo. Their photos show "4730F" on the blades.