MONSTER ENERGY, Ultra Watermelon, 473mL, Can FULL FLAVOUR, ZERO SUGAR| Monster Energy Ultra Watermelon has 10 calories and zero sugar, but with all the flavour you’re accustomed to and packed with our sugar-free Monster Energy blend. REFRESHING TASTE| Zero sugar, easy-drinking refreshing flavor with the explosive Monster energy blend to light-up those hot summer nights. UNLEASH THE BEAST | Under the firework lit night sky, you’ve got your crush by your side. With good music and better friends, it’s the best summer ever. Ultra Watermelon is summertime in a can so you can enjoy it anytime.