UPDATE (April 2017): Please find the updated post here
The data in this post is current as of April 2015.
If you would like to see updated data, please check the other related posts on this site for Walmart or Amazon.
Walmart.com sells 4,259,605 products
and
Amazon.com sells 356,227,986 products
Walmart.com sells a mere 1.1% of what Amazon.com sells
This is an interesting point of comparison on how online and offline retailers compare to each other. Rather, how the the online sites of “brick and mortar” stores compare to pure online stores.
It is a small percentage and shows you how much ground Walmart has to cover to catch up to Amazon.