Amazon.com Incsaid on Tuesday it shipped more than one billion items through Amazon Prime and Fulfillment by Amazon this holiday season. The online retailer also said it had its best holiday season ever for Amazon devices, with the Echo Dot, Fire TV Stick, Fire tablet and Amazon Echo topping its best-sellers list. The Echo Dot was the most coveted gift out of items shipped from Amazon, which quickly sold out. There were plenty of last-minute shoppers on Amazon Prime this year, with December 23 being the most popular day for Prime Now deliveries. While Amazon's devices dominated that last-minute delivery list, Oreo cookies were also a popular gift.