PHOTO: The new Venezia Unica card is a rebranded version of the imob.venezia card shown here. (If you have a valid imob.venezia card, you can have it "enabled" as a Venezia Unica card free of charge.)
If you're a regular visitor to Venice, you probably know that the imob.venezia stored-value transit card has offered huge discounts on public transportation for the last several years. "Cartavenezia" fares, which have been available only to imob.venezia cardholders, are a fraction of the single-fare and Tourist Travel Card rates that most visitors pay.
The discounted fares are still available, but the stored-value card is now called the "Venezia Unica city pass," and it offers a few more features than the old imob.venezia version did. (Probably the most important feature for non-residents is the ability to recharge the card with fares online.)
For more information, see our Venezia Unica city pass article at Veniceforvisitors.com.