The new devices are available with 1080p IPS display and Windows 8.
Lenovo has added the Rip and Flip ThinkPad Helix, the Multimode Mini-Ultrabook and the IdeaPad Yoga 11S to its range of convertible laptops.
The Helix is powered by Intel 3rd generation Core and is a combination of a laptop and tablet with a rip and flip screen.
Features of the device include an on-board pen, full-size keyboard, five button clickpad, LTE2 high speed wireless and Near Field Communications (NFC) technology, which shares data between devices by tapping.
The Yoga 11S, equipped with 3rd generation Intel Core i5 processor, is a convertible with 360° hinge that allows flip and fold that can be used as both laptop and tablet.
The device supports 10 finger multi-touch and motion control.
Lenovo senior vice president, Peter Hortensius said that the ThinkPad Helix gives business professionals two devices in one.
"We've pumped more power and productivity into the new IdeaPad Yoga 11S mini-Ultrabook so it can handle whatever mobile computing tasks consumers throw at it," he said.