Samsung posted three new teaser videos for the Galaxy S10 family, these are short and sweet. The first makes it clear that the S10 phones are firmly in the no-notch camp as well as highlighting their in-display fingerprint readers. The video description specifically mentions ultrasonic technology.
The next video is focused on the selfie camera and the 4K in the title cant escape us rumors say this will be a 10MP camera with Optical Image Stabilization (not to mention having a Dual Pixel sensor and autofocus).
The last one is about the battery, specifically the wireless charging the Galaxy S10 phones will support fast 15W wireless charging and 9W reverse wireless charging.
Expect Samsung to keep ramping up the promo campaign for the Galaxy S10 phones all the way up to the February 20 unveiling.