Amazon's Prime Day 2025 is off to a rocky start, at least by one account. Momentum Commerce, which manages online sales for 50 brands in a variety of product categories and price points, said its Amazon (AMZN) sales plunged 41% on the opening day,

Some major retailers raise the online prices of certain goods days or weeks before marking them down in seasonal sales events, the NBC News Price Tracker shows.

Warehouse workers and union representatives said Prime Day meant extra hours in sometimes sweltering temperatures and a heightened risk of injuries.

Adobe Analytics predicted Amazon consumers would spend $23.8 billion throughout the four-day event, $9.6 billion more than last year’s event, according to Forbes.

The event, started in 2015 as a way to hook new Prime members, has pushed other retailers to launch counterprogramming.

SuperStore electronics general manager Todd MacDuff said they saw an increase in customers this past weekend, and credits that rise in sales to the promotion they put out before Amazon’s Prime Day deals.

The summer sales calendar now revolves around Amazon's anchor, with most major U.S. retailers scheduling competing events within days of Prime Day's expanded four-day window.

TechRadar was in attendance at the big Samsung Galaxy Unpacked event this week, and as well as foldable phones (of which more in a moment), we saw the launch of two new Wear OS smartwatches for 2025: the Galaxy Watch 8 and the Galaxy Watch 8 Classic.

We highlight some of the Prime Day deals we found that are under $100.