Analysts say the move is a sign that PC makers are backing away from their commitment to the struggling OS.
Lenovo is expanding software partnerships as it tries to break into a server market dominated by Hewlett-Packard, IBM and Dell.
Lenovo is bringing another Windows 8 tablet to market -- this one made with keyboard cover in mind -- along with five new touch-based laptops that are slated to arrive globally in July and August.
The shift toward smaller tablets will accelerate in the second half of the year when a slew of tablet makers, including Apple, introduce new models with screens 8-in. or smaller, said Richard Shim, an analyst with DisplaySearch.
Tests by ABI Research cast doubt on the common assumption that ARM chips offer better power savings than X86 chips designed by Intel, and may mean more smartphones will be built using Intel's Atom family.
Lenovo is in preliminary negotiations to start a joint venture with an unspecified party, the company said on Tuesday, setting off speculation that the company could be looking to bolster its expanding smartphone business.
Dell has expanded its range of hybrid devices with the XPS 11, which can transform from tablet to laptop with the flip of a screen.
Can the brand behind ThinkPad crack the Apple/Samsung duopoly?
How can Lenovo shine in a smartphone ecosystem dominated by Samsung and Apple? Easy: By sticking to its core audience of business users.
While numerous vendors have released table devices that use Windows RT, Lenovo has gone with Windows 8 Pro for its ThinkPad Helix hybrid.