FCC filings for the S Pen Pro, a bigger version of the S Pen with Bluetooth, have been made public, and reveal that the upcoming stylus will support the unannounced Galaxy Z Fold 3.
Samsung Galaxy Z Fold 3 announced with S Pen support and water resistance - The Verge
S Pen on Galaxy Z Fold 3 5G: how does it work, what is it used for? - PhoneArena
Samsung Galaxy Z Fold 3 will support the S Pen Pro, FCC document reveals - Gizmochina
Galaxy Z Fold 3 hands-on: Built stronger for durability and S Pen support
Samsung Galaxy Z Fold 3 announced with S Pen support and water resistance - The Verge
Samsung S Pen Pro vs S Pen Fold Edition: What's the difference?
FCC filing reveals Samsung's Galaxy Z Fold 3 will support the S Pen Pro - Talk Android
Samsung S Pen Pro vs S Pen Fold Edition: What's the difference?
Galaxy Z Fold 3 Gets Major Approval, Feature Confirmation
Samsung S Pen Pro vs S Pen Fold Edition: What's the difference?
Does the Samsung Galaxy Z Fold 3 support the S Pen?