Cortana, Microsoft's digital personal assistant, can now help you save money when you're shopping online. That is if you've installed the Windows 10 Creators Update, are using Microsoft Edge to browse the web, and are in the U.S. But what's a few caveats between friends?

Most of us shop online these days. And we all want to get the best deal when doing so. We don't want to pay over the odds for a product, and will check multiple online retailers to save a few dollars. And now, thanks to Microsoft, it's easier than ever to save money when shopping online.

Cortana Compares the Prices

Cortana's new trick could save you a ton of money. That's because Microsoft has imbued its digital assistant with the power to compare prices across a number of online retailers. If you're shopping on one of these sites, Cortana will be checking the prices on the others.

This is a pilot feature Microsoft is rolling out to anyone using the Windows 10 Creators Update. And it means that if you use Microsoft Edge, Cortana will be comparing prices for you every time you shop online at any one of 14 retailers (including Amazon, Walmart, and eBay).

Say, for example, you're shopping for a vacuum cleaner on Amazon. While you're viewing a particular vacuum cleaner, Cortana will check the price of that same vacuum cleaner at the other retailers. Clicking the Cortana icon will show you the prices on those other retailers.

Microsoft is keen to point out that it's only piloting this feature right now. Therefore, the information may not always be entirely accurate. However, the company is inviting users to give honest feedback, and is also promising to add more online retailers into the mix in the future.

Cortana Gives Microsoft the Edge

If this actually works as advertised it's a fantastic feature. In fact, it might just be one of the few legitimate reasons to start using Microsoft Edge. Even if you only use it when shopping online. This may just be a work in progress, but if it ends up saving me a few dollars I'm in.

Do you have the Windows 10 Creators Update installed on your PC? How are you finding it so far? Do you regularly use Edge to browse the web? If so, why? Can you see yourself using Cortana to compare the price of items online? Please let us know in the comments below!