CUPERTINO, Calif. — Apple has broken the $1,000 barrier with its latest, and most expensive, phone, the iPhone X.

With a price starting at $999 and a host of new features, the phone will be a big test for both Apple and consumers. Will people be willing to shell out really big bucks for a relatively fragile device that's become an essential part of daily life?

On Tuesday, CEO Tim Cook called the iPhone X “the biggest leap forward” since the first iPhone. (“X” is pronounced like the number 10, not the letter X.) It loses the home button, which revolutionized smartphones when it launched; offers an edge-to-edge screen; and will use facial recognition to unlock the phone.

Apple also unveiled a new iPhone 8 and a larger 8 Plus with upgrades to cameras, displays and speakers.

Those phones, Apple said, will shoot pictures with better colors and less distortion, particularly in low-light settings. The display will adapt to ambient lighting, similar to a feature in some iPad Pro models. Speakers will be louder and offer deeper bass.