Apple has posted its first two iPhone 6 and iPhone 6 Plus commercials online, featuring entertainers Jimmy Fallon and Justin Timberlake, whose voices were also featured in the teasers unveiled during the Keynote launch announcement of the new phones in early September.

The first ads feature the pair and the bigger iPhone 6, which take advantage of the upgraded iOS8 Health App that allows users to keep track of life-saving data and health stats.

The online ads highlight the new phones' extra large screen, with Timberlake exclaiming how "huge" the sizes of the phones are. The iPhone 6 measures 4.7 inches and the iPhone 6 Plus ventures into phablet territory at a whopping 5.5 inches.

In the second commercial, Fallon and Timberlake comment on the enhancements on the camera, such as image stabilization, slow motion video recording, and time-lapse photography.

The commercials are definitely aimed at expanding Apple's current iPhone market beyond the typical fans by using famous voices to talk about the new, exciting features of the latest phones.

Two more ads that put the spotlight on real-life friends are scheduled to be released in the coming weeks. The move aims to boost Apple's image and entice consumers to purchase the new iPhones despite criticism that Apple has entered the big-screen market too late.

In a series of online videos, rival Samsung poked fun at Apple's Keynote event, from technical difficulties to their exciting news of bigger screens, saying that Samsung has been offering phones with bigger screens and better resolution for years.

Despite the parody videos and criticism, Apple has announced that 10 million iPhone 6 and iPhone 6 Plus units were sold over the launch weekend.

Apple CEO Tim Cook expressed his happiness and gratitude over the sales of the new phones.

"We would like to thank all of our customers for making this our best launch ever, shattering all previous sell-through records by a large margin," he said.