A mobile phone user walks past a logo of China Mobile's 4G service in Qingdao, Shandong province. [Photo/China Daily]

With the deployment of 4G network, China's mobile network speed achieved around 18Mbps on average in August this year, outpacing countries like the United States and the United Kingdom in the same period. That's according to a report by OpenSignal, a mobile network evaluating app.

However, the report also points out that the condition of China's mobile network coverage, which varies greatly between urban and suburban areas, is not as good as the United States and other developed countries.

The report shows that South Korea's mobile network is the fastest in the world with an average of 41Mbps, followed by Singapore, Hungary, Australia and Denmark.

At the same time, these countries also have the highest percentage of mobile network coverage in the world.

It adds that countries like India, Iraq and Ukraine have the worst mobile network coverage and the slowest mobile network speeds. India for example has average speeds of around 5.3Mbps.

In the meantime, the number of countries where its mobile users spend more time surfing using WIFI rather than 3G or 4G has reached 46, testimony to the popular habit of searching for free WIFI.