The test for Tim Cook last September was to prove that Apple could still come up with innovative products, so he revealed a smartwatch. His next test comes tomorrow - convincing you to buy it.
Apple's chief executive returns to the spotlight to answer questions on many of the device's key selling points, including price range, battery life and when in April the watch will reach stores, and in which countries.
But perhaps the biggest question about Apple's first new gadget since the iPad is whether the internet makes sense on your wrist.
"I would expect Tim to spend most of his time walking consumers through very unique use-case scenarios and exploring the implications for the internet on the wrist and why it matters," said Shawn DuBravac, chief economist for the Consumer Electronics Association.
When the watch with a rectangular touchscreen was first shown in September, Apple said it would come in two sizes, three styles and tell time to within 50 milliseconds of accuracy. Applications allow for maps, photos, music and messages along with the ability to track health and fitness.
