Amazon.com: Silicone Pen Case for Tab S4 S Pen,Biuboom Touch Screen Tablet Stylus Case Work with Galaxy Tab A 10.5 (sm-t590 T595) Galaxy Tab S4 10.5 ( sm-t830 T835 T837) Nibs+Pen Holder Clip
Amazon.com: Tab S4 Touch Stylus S Pen Pointer Pen Replacement for Samsung Galaxy TabS4 S4 EJ-PT830 T835 T837 /S21 Ultra Stylus Pen + Tips/Nibs Black : Cell Phones & Accessories
Galaxy Tab S4 press renders leaks, has redesigned S Pen - Gizmochina