Yang Yuanqing, chairman and CEO of Lenovo Group Ltd, delivers keynote speech at the Lenovo Tech World held on May 28 in Beijing. [Photo/China Daily]?

Lenovo Group yesterday showed off concept products such as a double-screen smartwatch and a laser projector smartphone and other future technologies at the Lenovo Tech World, which drew the chief executives of Microsoft and Intel.

It was the first time for Lenovo, the world's biggest personal computer maker, to hold the tech event in Beijing, at which Microsoft CEO Satya Nadella, Intel CEO Brian Krzanich and Baidu CEO Robin Li gave speeches and demos covering technologies on voice assistant tool and machine learning. The technologies will be used in Lenovo PCs and smartphones.

Lenovo, which sold 148 million devices globally in the year ended on March 31, aims to offer users combined services covering devices and software as it transforms from a hardware maker to a “One-Stop” service provider, said Lenovo's Chairman Yang Yuanqing.

Motorola Mobility, a unit of Lenovo after a US$290 million acquisition in 2014, debuted its customized service, Moto Maker, on China's mainland.

It allows users to choose color and back material for Moto X phones. The service also promises to deliver the phones within seven days on the mainland.

Lenovo's future wearable computing products will feature wireless connection, big data analysis and cloud services, Yang added.

Its Magic View smartwatch features two screens and virtual interactive display technologies while the Smart Cast handset has a projector.

In the first quarter, Lenovo's mobile business contributed a revenue of US$2.8 billion.