Microsoft has begun testing two new features designed to save you money when shopping at retail stores. Both of these features, a price comparison tool and a coupon autofill, are currently a work in progress with only basic functionality, but they provide insight into Microsoft's plans to make the Edge browser stand out from the rest.

BleepingComputer has discovered a new feature added to Microsoft Edge Dev and Canary builds that will perform price comparisons on retail product pages added to a Collection.
This feature is internally called "MsCollectionsPriceComparison" and is a work in progress as not all features are working yet. When adding product pages from specific retail sites, a "Compare prices with other retailers" link will appear below the product, as shown below.

When you click the price comparison link, Microsoft Edge will connect to https://www.bing.com/api/shopping/pricecompare/search and attempt to find other matching products and display their prices.
In tests conducted, this feature is not yet working and only works at specific retailers, including Amazon, BestBuy, Newegg, Walmart, and Target.
As discovered by TechDows, in the Microsoft Edge Canary build, Microsoft is testing a new feature that will autofill coupons on retail purchase pages. This new flag is titled “Show coupons as autofill suggestions,” and when enabled, it will appear available for coupons when on the checkout page and if it has a promo code field.

When checking for new coupons, this feature is set to a test URL of https://autofillcoupons.edgebrowser.microsoft-testing-falcon.io/fetchCoupons.
In our tests, this URL is not queried when visiting retail sites that offer coupon and promo code fields, so the functionality is likely not fully enabled.
