A Japanese vending machine uses facial recognition to suggest choices to consumers. The machine will suggest products from its selection based on the persons gender and age. For example is a 50 year old man approached the machine it may recommend a green tea, if a younger man approached the machine it may offer them a canned beverage, and a younger woman a tea or sweet drink. Other factors like the time of day can play a role in suggestions as well.
Since the addition of these vending machines, sales have tripled over the traditional vending machines offered in Japan. Around 500 machines are expected to be added in Japan before 2012.