iPhone 6 and iPhone 6 Plus

Apple ( NASDAQ: AAPL) has introduced the iPhone 6 and the iPhone 6 Plus, which Tim Cook called the 'best iPhones' the company has ever produced.

Apple's senior vice president of marketing Phil Schiller explained at its much anticipated event today that the glass front curves around the side of the phones, meeting the anodized aluminum backing.

The iPhone 6 Plus is 5.5 inches diagonally and the iPhone 6 is 4.7 inches, compared to the iPhone 5S size of 4 inches. The phones are thinner than ever: 6.9 mm for the iPhone 6 and 7.1 mm for the larger iPhone 6 Plus.

Apple CEO Tim Cook said on-stage that the company is 'launching the biggest advancement in the history of iPhone.'

Apple fans have been waiting for weeks for the company to make its major announcement in Cupertino, California. Much of the speculation has centered on the possible release of the next iPhone and a wearable device, however Apple has kept the big news under wraps.

The media event was held at a venue typically reserved for significant product unveilings. On the same stage, founder Steve Jobs introduced the Macintosh computer 30 years ago. The iMac computer was also introduced on the same stage, which 'signaled the rebirth of Apple,' Cook said.

EXCLUSIVE: Apple will make a groundbreaking announcement on Tuesday - and ABC News' David Muir will be the only anchor there with an exclusive on World News Tonight

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