Update 2/11: The post has been updated with the B&H links for the LG Watch Style.
End of Update
Both watches are available for purchase from the Google Store with the Watch Style being sold at Best Buy and the Watch Sport being sold at Verizon and AT&T. Below are both models with their links to buy them:
LG Watch Style - Titanium: Best Buy, Google Store, B&H - Silver: Best Buy, Google Store, B&H - Rose Gold: Best Buy, Google Store, B&H LG Watch Sport - Dark Blue: Google Store - Titanium: Verizon, AT&T, Google Store