Walmart throws shade at Amazon over new $150 minimum for free grocery delivery

• Amazon Prime members will soon need to spend $150 to get free grocery delivery via Amazon Fresh.
• Members of Walmart's fledgling membership platform only need to spend $35 to get free delivery.
• Walmart wasted no time taking aim at its rival over the change to free grocery delivery.

Amazon announced a major shift this week to make its Prime members spend more to get free grocery delivery, and Walmart wasted no time attacking its rival.