The company today announced the Galaxy S10, S10 Plus, S10E and S10 5G. All are powered by a Qualcomm Snapdragon 855 that handles 4G radio duties. The 5G model uses a Qualcomm X50 5G modem that handles both both millimeter wave (28GHz and 39GHz) and sub-6GHz 5G bands.
For Wi-Fi 6, however, Samsung decided to use Broadcom's BCM4375 instead of the draft 11ax radio built into the Snapdragon 855.
The S10, S10 Plus, and S10E will be available for preorders tomorrow at 12AM ET (midnight), starting at $900, $1,000, and $750, respectively.
This is much more aggressive push to the U.S. market for Wi-Fi 6 than for Wi-Fi 5 (80211ac). It took about two years between the shipment of draft 11ac routers and 11ac phones in the U.S.
Qualcomm press release
Broadcom press release