Amazon sells over 1 million Kindles per week

US online retail giant Amazon announced that it has been selling over one million Kindle devices per week for the third week in a row.

Kindle Fire, Amazon's latest tablet computer, has been the No.1 bestselling product on Amazon.com since its launch 11 weeks ago, the company said in a statement.

The company noted Kindle Fire is the most successful product it has ever launched and is "building millions more to meet the high demand", reported Xinhua.

Amazon issued the statement after Kindle Fire has been criticized by some consumers and product reviewers for performance issues, such as speed of web browser, poor scrolling, and lack of security as well as parent control.

Last Sunday, Amazon told the New York Times that it will release a software update for Kindle Fire in less than two weeks to address those issues.

How Kindle Fire stacks up against the iPad

Backed by Amazon's content and commerce assets, the $199 Kindle Fire has been considered as one of the most promising candidates to shake the dominance of Apple's iPad in the tablet market.