It's now been roughly two weeks since tech powerhouse Microsoft (NASDAQ:MSFT) launched its answer to Sony's long-awaited PlayStation 4.

Both Sony and Microsoft matched one another during the first phase of their respective console launches, selling 1 million devices each in the first 24 hours of availability. 

After day one
However, since then, it's less clear as to which device is selling better.

Between the two tech giants, Sony has perhaps been the more proactive in disclosing sales metrics for the PlayStation 4. Sony recently divulged that it had sold a total of 2.1 million PS4s, with around 700,000 of those unit sales occurring in markets outside the United States.

Microsoft, on the other hand, has been significantly more tight-lipped on its Xbox One sales. In all fairness, Microsoft might understandably be avoiding revealing sales figures because of the inevitable comparison it will receive against Sony, which probably isn't fair, since Sony's PlayStation 4 has been on sales for one week longer than Microsoft's Xbox One.

Either way, this is a key storyline for tech investors to watch going into the holiday season, which technology and telecom analyst Andrew Tonner discusses in the following video.

Fool contributor Andrew Tonner owns shares of Apple. Follow Andrew and all his writing on Twitter at @AndrewTonnerThe Motley Fool recommends Amazon.com, Apple, Facebook, and Google and owns shares of Amazon.com, Apple, Facebook, Microsoft, and Google. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.