Prime Day is brilliant, but the best savings aren't always at Amazon. Walmart has beaten the online giant's price for this Sony A7R IV camera, by over $200, but it could be ending soon!

Amazon outshines Walmart for long-term growth. Click to read more about their profitability, e-commerce edge, and valuation, and why I rate AMZN a Buy and WMT a Sell.

Amazon.com Inc.’s Prime Day sale helped boost online spending across all retailers in the US by 30.3% to $24.1 billion, according to Adobe Inc., topping its estimate for 28.4% growth for the period ending July 11.

One more thing I found while ping-ponging around Walmart’s sale pages this week: This OB2 scanner from Nexpow. It’s going for $28.79, a great deal off its list price of $79.99, and has far more functionality than any of the $30 bottom-shelf units you’re going to find on the rack at an auto parts store. Could be worth a look!

Prime Day isn't offering any major Xbox deals, so you can hop over to Walmart for discounts on the popular console

Amazon Prime Day officially got underway Tuesday, with the summer sales event slated to last through July 11. Competitors Target and Walmart are also holding multi-day sales events.