Specifically, this is the first time the Oura Ring 4 has ever been discounted, so it's important that you jump on this great discount before Sauron gets it Prime Day ends later to

Amazon is hosting its annual Prime Day event, but for 2025, it is 4 days long (rather than 2). We're rounding up all of the best deals of the event so far and updating this article live with the cream of the crop.

For the first time, you can pick up an Oura ring 4 for less than £300 – but its predecessor is available for nearly half that price