About four months before the alleged release date of the Samsung Galaxy Note 9, a refreshed set of details reveals the following: 3,850 mAh battery with 18 W fast charging, under-the-display fingerprint scanner, new S-Pen, Bixby 2.0, upgraded camera, and a new "Teddy Brown" color option.
https://www.notebookcheck.net/The-Samsung-Galaxy-Note-9-could-feature-a-new-S-Pen-virtual-fingerprint-recognition-and-more.302276.0.html