Bottled carbonated water is also known as sparkling water and it has no artificial sweeteners, or calories and no synthetic colors. Carbonated Seltzer water is just tasty carbonated water that is flavored using fruit aromas.
Carbonated Seltzer water is available without flavor too and can be enjoyed with any meal. Usually one or more fruity flavors are used in flavored sparkling water and by alternating between different flavors one can always enjoy drinking sparkling water.
If you too are interested in drinking flavored sparkling water then you can easily make your own tasty drink in a soda machine made by machine manufacturers such as Wassermaxx or Sodastream, also known as Soda Club. You can blend in your own flavors and many people have even started building hi-tech machines in their kitchens to whip up exciting carbonated beverages. Such machines are truly expensive, and cost around 1600 Euros minimum, but the carbonic acid used in preparing carbonated water itself is quite cheap. Carbonic acid is available in 3-4 kilogram bottles and each liter requires only 6-8 grams of this acid, and hence, a liter of sparkling water costs only a few cents to make.
You can also make carbonated water with cheaper machines that do not have a cooling system and provide water from a tap, but such machines do not allow for a perfect mixture and you will also be able to only attach smaller carbonic acid canisters.
Check for consistency in taste of the resultant sparkling water as well as the level of carbonic acid dissolved in the water before you buy such machines. If the level of carbonic acid is not suitable for all your family members then many might simply not use the machine and so stay away from any machine where the salesperson says “lightly carbonated water”. Be sure to thoroughly test any machine before making a choice.