Hot product: Samsung Electronics Co Ltd's Gear VR virtual reality headset is one of the best sellers on Amazon.
Amazon.com Inc said it shipped more than one billion items worldwide this holiday season, which the top online retailer called its best ever, and its shares rose 1.6% in afternoon trade.
The Amazon Echo home assistant and its smaller version, Echo Dot, topped the best-sellers list, said Jeff Wilke, chief executive of Amazon's worldwide consumer division, in a press release.
