The pink grapefruit of this brand was delicious, so I bought it on sale as well. Watermelon taste? Feels like American watermelon. I prefer grapefruit, but I think it's better after hydration and drinking in hot weather! Some are individually wrapped and have notches that are easy to open, while others do not. It is high in salt because it is intended for hydration and electrolytes.
Watermelons ... consciously feel far away, so don't expect them. I drink it to rehydrate when I wake up in the morning. One glass (about 250cc?) Is just right. I wanted a watermelon, but I don't think I'll repeat this flavor because it's not enough. But I really like how easy it is to open the package. It can be cut sideways, and the opening is half, so it doesn't come out suddenly, but everything comes out cleanly. Other packages I bought tend to spill because the cut end is lumpy and the powder clings to them. It's a small thing, but the package is important.