13.3'' Lenovo LaVie Z notebooks are ''world's lightest''

— 6:45 PM on January 5, 2015

Thin is in—and has been for quite some time in the laptop industry. Now, Lenovo is trying to break records in the weight category. The company says its new LaVie Z lineup includes the world's lightest 13.3" notebook, the 1.72-lb HZ550, and the world's lightest 13.3" convertible, the 2.04-lb HZ750.

The two systems apparently look very much alike, because Lenovo says the picture above depicts both of them. Both are 0.67" thick, and both use exotic alloys and manufacturing techniques to achieve their featherweight status:

Both machines use a specialized magnesium-lithium (Mg-Li)3 body construction along with specialized technologies including a Magnesium Lithium forged back cover. The materials are 50 percent lighter than aluminum and as strong as any heavier typical Magnesium alloy laptop materials resulting in unsurpassed quality engineering. The HZ750 also has a direct bonded touchscreen that uses a film instead of cover glass.

Intel's Broadwell-U CPUs provide processing power. The HZ550 can be configured with up to a Core i5 with 4GB of RAM, while the HZ750 is offered with up to a Core i7 and 8GB of RAM. On the display front, the HZ550's 13.3" 2560x1440 panel is mounted to a 180-degree hinge, and the HZ750 has a 360-degree hinge and a touch screen with a choice of 1920x1080 and 2560x1440 resolutions.

Battery capacities also differ between the two systems: 29.6Wh for the HZ550 and 44.4Wh for the HZ750. Otherwise, both machines are outfitted with 128GB of solid-state storage, dual USB 3.0 ports, HDMI out, an SD card reader, 802.11ac Wi-Fi, and Bluetooth 4.0.

Look for these lightweight beauties stateside in May 2015. Lenovo expects pricing to start at $1,299 for the HZ550 and $1,499 for the HZ750.

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