Acer has unveiled the world's thinnest Ultrabook with the Aspire S5, an ultra-slim device that measures only 15 mm at the maximal point.

It weighs less than 1.35 kg (less than 3 lbs.) and is built with a 13.3-inch (34 cm) LCD. In addition, it features the Acer Green Instant On technology for fast boot and resume, and Acer Always Connect, which lets users manage their multimedia and data on all their devices at anytime, anywhere -- even from sleep.

"The Ultrabook is much more than just a product segment," said Jim Wong, president of Acer Inc. "It's a new trend that will become the mainstream for mobile PCs, and customers will see the unique features gradually extended across Acer's notebook family."

Acer Green Instant On and Acer Always Connect technologies enable data upload and retrieval anytime, anywhere, and deliver power-saving features as well. Acer Green Instant On provides instant-resume functionality (in 1.5 seconds) and ensures battery life that lasts several weeks.

Acer Always Connect gets users online faster than conventional connections for better productivity and infotainment enjoyment. With their Facebook, Twitter and Outlook email accounts open, users can see updates instantly upon resuming. Furthermore, Acer Always Connect can wake up the Aspire S5 from a remote device like a smartphone. Access to all documents, music, pictures and video files is fast and always available.

The Aspire S5 is Acer's first Ultrabook to feature a smartly designed MagicFlip I/O port panel concealed just below the hinge. This design feature enhances the overall slenderness and streamlined form of the S5. When needed, a press of the MagicFlip key opens the panel to reveal a selection of I/O ports: HDMI, USB 3.0 and 20 Gbps Thunderbolt.

The Aspire S5 features an Intel Core processor, SSD storage for speed and increased shock resistance, professionally-tuned Dolby Home Theater v4, long battery life via the PowerSmart battery pack (with a 3X longer life cycle1 than traditional batteries), and is equipped with a chiclet keyboard.

The Aspire S5 will start shipping in Q2 2012.