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Lenovo has officially unveiled their latest ultrabook ThinkPad T431sis thinner and lighter as compared to previous T Series laptop comes with carbon fiber and magnesium design, HD+ screen with 250nits brightness that can tilt up to 180-degree like tablet mode but not gives touch experience, optional backlit keyboard, smooth and responsive multi-touch gesture support touchpad, 3rd generation Intel Ivy Bridge i5 or i7 processor, Dolby Home Theater improved audio and video performance, Polycom Ready for voice clarity and video communication, Fingerprint Reader used for log on the machine and Lenovo RapidBoot booting up 40% faster.

The Lenovo ThinkPad T431s has Intel Core 2.7GHz i5-3337U or 2.1GHz i7-3687U dual core processor, 14-inch display screen with 1600 x 900 pixels resolution, Intel HD graphics, up to 12GB RAM, up to 1TB hard drive or optional up to 256GB solid state drive, Windows 7 or Windows 8 operating system, 720p HD web camera with face tracking technology, dimension 13.03 x 8.89 x 0.82 inches and weight 3.6 pounds.

Lenovo T431s has connectivity options are WWAN, Wi-Fi, Bluetooth 4.0, Ethernet LAN, VGA port, headphone and microphone jack, 2 USB 3.0 ports, 4 in 1 card reader and 3-cell 47Whr battery provides up to 9 hours of running life.

Lenovo ThinkPad T431s will be going to release from April at starting price of $949.

Lenovo has announced two convertible ultrabook and tablet called IdeaPad Yoga 11S and ThinkPad Helix respectively are used in different modes such as tablet, tent, stand mode for presentation and laptop modes using keyboard dock, 10-point IPS display provides wide viewing angles, Intel Ivy Bridge platform provides exceptional performance and reduce energy consumption and dual speakers with Dolby Home Theater.

The Lenovo Yoga 11S has Motion Control feature allows to swipe hand in front of web camera to move photos, documents and videos, Lenovo Transition automatically open applications in full screen mode, fold screen back to 360 degrees, 11.6-inch HD capacitive multi-touch screen display with 1366 x 768 pixels resolution and 300 nit brightness, Bluetooth 4.0, dimension 11.73 x 8.03 x 0.67 inches, weight 3.08 pounds and up to 6 hours battery life.

The Lenovo Helix provides flip to 180 degree, 11.6-inch Full HD multi-touch screen display with 1920 x 1080 pixels resolution, 400 nits brightness and Gorilla Glass protecting screen from scotches, 4G LTE mobile broadband, NFC (near field communication), miniDisplayPort, Ethernet LAN, thickness 0.8 inches, weight 1.84 pounds of tablet and 3.68 pounds with keyboard, up to 5 hours in tablet mode and 10 hours in laptop mode.

These both Lenovo Ultrabook and Tablet has Intel Core i5 or i7 Ivy Bridge processor, Windows 8 operating system, Intel HD 4000 graphics, up to 8GB RAM, up to 256GB solid state drive, 720p HD web camera, Wi-Fi, HDMI port, card reader, miniHDMI port, USB 3.0 and USB 2.0 ports.

The Lenovo IdeaPad Yoga 11S will be available from June 2013 at starting price of $799 in Pink, Orange and Silver color options and Lenovo ThinkPad Helix will be available from April at starting price of $1,499.

Asus announced high performance ultra portable ultrabook in their range called Zenbook U500VZ has delivering multi-touch and non-touch experience, first ultrabook with Full HD resolution with 300cd/m2 brightness look realistic colors, IPS panel allows vibrant and detailed visuals to shine and 160-degree viewing angles, Asus SonicMaster audio delivers outstanding sound, instant resume from sleep in just 2-seconds, smart backlit keyboard that uses ambient light sensor, Super Hybrid Engine II technology increasing 25% battery life,

The Asus U500VZ has 15.6-inch Full HD display screen with 1920 x 1080 pixels resolution, HD web camera for video calling, dimension 380 x 254.5 x 6-20 mm and weight 2.16 kg.

It has powered with Intel Core i7-3632QM/3612QM quad core processor, Intel HM77 chipset, 4GB RAM, 500GB hard drive with 24GB/128GB solid state drive and up to 256GB SSD, NVIDIA GeForce GT650M graphics with 2GB GDDR5 VRAM, Windows 8 or Windows 7 operating system.

It has connectivity of Wi-Fi, Bluetooth 4.0, 2 in 1 card reader, 3 USB 3.0 ports, HDMI and VGA port and 8-cell 4750mAh battery provides up to 7 hours life.

The Asus Zenbook U500VZ will be available from November 2012 at starting price of $699 to $1,999.