These are official images from Samsung that will likely be plastered all over the official product pages for the devices once they launch. We see both the Galaxy S9 and Galaxy S9+ in Titanium Gray, Midnight Black, and Lilac Purple thanks to notorious leaker Evan Blass posted below:
In case you need large, unmarked versions... pic.twitter.com/d233KC1cI8— Evan Blass (@evleaks) February 19, 2018
You're, ahem, missing Titanium Gray ;) pic.twitter.com/fFVdZ5hUoZ— Evan Blass (@evleaks) February 19, 2018
Piling on to the leaks, WinFuture has posted nearly the full specifications list for the Galaxy S9, and the more impressive Galaxy S9+. The latter features dual 12MP cameras on the rear, including one camera (which is shared with the lesser Galaxy S9) that has a variable aperture ranging from f/1.5 to f/2.5. This variable aperture system will allow the Galaxy S9 family to [theoretically] deliver superior-quality photos in a wider range of lighting scenarios (especially in low-light situations).
Both cameras on the Galaxy S9+ are said to be optically-stabilized, and include both laser and dual-pixel auto focusing. Both smartphones will incorporate a single 8MP selfie camera with an f/1.7 aperture.
Other features shared between the two smartphones include stereo speakers tuned by AKG along with an iris scanner and facial recognition. It's also said that Samsung will use its front-facing sensors to enable its own version of Animojis found on the iPhone X.
The Galaxy S9 and Galaxy S9+ will have 4GB or 6GB of RAM respectively and will come standard with 64GB of onboard storage (UFS 2.1). MicroSD cards are supported in up to 400GB capacities. The smaller of the two phones -- like last year's models -- will come with a 5.8-inch Infinity Display, while the larger model's display measure 6.2 inches. Both feature a resolution of 2960x1440.
Most markets will see their Galaxy S9 and Galaxy S9+ smartphones powered by Samsung Exynos 9810 processors. However, customers in China and the United States will instead receive the [allegedly slower] Qualcomm Snapdragon 845.