Walmart is trying to crush Amazon with better deals — here's who's really winning the price war (AMZN, WMT)

FILE PHOTO: Amazon boxes are seen stacked for delivery in the Manhattan borough of New York City, January 29, 2016. REUTERS/Mike Segar/File Photo

Walmart is going after Amazon in a race to offer the lowest prices.

The brick and mortar retail giant has been on a shopping spree over the past year ramping up its e-commerce business, acquiring Shoebuy, Moosejaw, Modcloth, and most notably Jet.com, which it paid $3 billion for last year.

Walmart, along with its subsidiary Jet, is taking direct aim at Amazon's booming e-commerce dominance, which is putting many traditional retailers out of business.

All this competition, in theory, should be good news for shoppers.

But which online retailer really is cheapest? To find out, we did a price check on 25 matching products on Amazon.com, Jet.com, and Walmart.com.

Amazon was the cheapest overall. It was $423.94 cheaper than Jet and $161.05 cheaper than Walmart.

Jet tended to have a price advantage on household products, while Amazon was generally cheaper on higher value items such as electronics. The biggest price difference, which significantly affected the total numbers, was on the LG Electronics smart HD TV.

Prices don't include shipping fees, which vary across the sites. Walmart, Jet, and Amazon all offer free shipping on orders that cost more than $35.

Jet.com