I’m currently using Samsung Galaxy Tab S3 Model: SM-T825
I have lost my S Pen and want to buy new S Pen
My question is instead of buying the Old S Pen Shall I buy Galaxy Tab S4 S Pen – Black (EJ-PT830BBEGUJ)
Is it compatible with Model: SM-T825?
Yes, it is compatible. Even the smaller spen of a note 8 or 9 is compatible because they use the same nibs. If you want to be sure then you can visit any Samsung or Best Buy store.