To put it as unscientifically as possible, hard seltzers are basically water mixed with vodka, while wine is more or less grape juice mixed with alcohol. Either way, both tend to come out with an impressively low calorie count.
So if watching your waistline is your thing, you can’t go wrong with either. After all, either option is far more calorie-kind than what you’ll find inside the average bottle of beer. But Hard Seltzer does have 12 calories less. Drinjk = 1 Seltzer = 1.