Asustek Computer is planning to release inexpensive ZenPad series tablets to help boost its tablet shipments in 2015, but some market watchers still expect the company's tablet shipments to reach only 6-7 million units in 2015, down 30% from 9.4 million units in 2014, according to a Chinese-language Apple Daily report.

Asustek shipped 2.5 million tablets in the first half of the year, down 39% on year and the company failed to achieve its goal of 1.8 million shipments in the first quarter and 1.2 million in the second quarter, and shipped only 1.5 million units and one million units, respectively, the paper noted.