Amazon is rolling out 1-hour delivery to hundreds of U.S. cities as part of a major expansion of its logistics network. The e-commerce giant is also introducing 3-hour delivery for a fee, targeting customers willing to pay extra for speed. This aggressive push comes as Walmart intensifies competition with its own rapid delivery initiatives.

The move represents Amazon's latest salvo in the battle for retail supremacy, where delivery speed has become a critical differentiator. By offering one-hour delivery, Amazon aims to capture time-sensitive shoppers who might otherwise visit physical stores. The new service builds on Amazon's existing same-day delivery network and Prime Now offerings, which have been expanding steadily over the past year.

Industry analysts see this as a direct response to Walmart's growing threat in e-commerce. The retail giant has been investing heavily in its own delivery infrastructure, including partnerships with third-party services and experiments with in-store pickup lockers. Amazon's expansion could force Walmart to accelerate its own delivery timelines or risk losing customers to the faster option.