Sparkling water in fact is water with "bubbles"
As I was on vaccation in the states i realized you don't have many of them in the stores.
In Germany (and many other european countrys) we have many different sparkling waters.
- from hard carbonated to very low carbonated waters
- even naturaly carbonated water
- with and without minerals
- even real light salted water I've seen
Very liked is also a machine to carbonate your own water (SodaClub and SodaStream) because you don't have to carry heavy bottles. For that you have to know, we often have a very high quality water out of our tap (?). We can drink it as it comes out...
I think the way to describe it as coke without any taste is quite good. It just taste like natural water. But don't think they all taste like the same. There are many different natural tastes... I even saw a documentation on TV about a german restaurant they have about 50 different waters. And they present you the water as they present wine.
And really coming up are so called wellness waters. They are non carbonated or very low carbonated and have a slight taste of fruits and herbs. Wellness-, Fitness- or Healthwater seems to be a good selling item. Why else they should bring out new tastes week for week. Some really taste good... but the don't help for anything.