You'll see the same two … But which of LaCroix's closest competitor's flavors is best? Rating: 6. In the past, Polar's lineup has featured ambiguously named flavors like Unicorn Kisses, Mermaid Songs, and Yeti Mischief. There are 19 different flavors of Polar seltzer water. Another popular brand of flavored sparkling water is La Croix. Ultimately, you'll find that many seltzers and sparkling waters have the exact same ingredients. La Croix Sparkling Water. We drank them all to find out. Look at a label for Polar Seltzer and LaCroix Sparkling Water. Polar offers Ruby Red Grapefruit seltzer, like the other Polar … ... a lemon, and an original just like everyone else, but Polar also offers some blends that are tasty enough to curb your desire for cola or root beer. LaCroix’s grapefruit seltzer is called pamplemousse, which is the French word for “grapefruit.” For me, LaCroix came up short and became their own interpretation of grapefruit. And, …