NTT DoCoMo Inc. on Tuesday unveiled its new products for the spring, vowing to catch up with rival carriers by releasing high-spec gadgets and promoting its shopping and content-related services.

The new products include a tablet device called the dtab, which can be bought for less than ¥10,000 and is designed mainly for home use to access DoCoMo content such as e-books and movies. The product lineup also features Sony's new flagship smartphone Xperia Z, which generated a lot of buzz at the world's biggest trade event for gadgets, the International Consumer Electronics Show, recently in the U.S.

"We have been in a tough competition, but with the new products for spring, we will roll again," said DoCoMo President Kaoru Kato, who reiterated that the carrier still has no plans to add Apple's iPhone to its lineup.