Chinese smartphone maker Xiaomi is projecting its revenues are going to surge 50 percent to 16-billion U.S. dollars this year.

This would represent some 30-percent revenue growth compared to last year, when Xiaomi sales hit around 12-billion U.S. dollars.

But by comparison, Xiaomi's revenues are still well short of competitors such as Apple, which generated more than 180-billion U.S. dollars in revenues last year.

Last month, Xiaomi started selling smart wristbands and mobile power chargers on an online store it opened in the United States in a first step toward trying to crack the lucrative US market.