The Oura Ring 3 is up to $100 off. Here's how it compares to the Oura Ring 4

Nina Raemont/ZDNET The Oura Ring Gen 3 remains one of our favorite smart rings on the market and our pick for one of the best smart rings you can buy. While this space got more attention when the new Samsung Galaxy Ring launched last year, Oura has plugged away at the smart ring space, and the brand released a new generation smart ring, the Oura Ring 4, last fall. You know what that means: its third-generation smart ring is finally on sale at Amazon, even ahead of the retailer's Big Spring Sale. Also: The best Amazon Spring Sale deals live now With this sale, you can save anywhere from $50 to $100, depending on your choice of style and finish. For example, the gold Horizon ring is selling for 22% off. If you're deciding between buying the newer Oura Ring 4 or getting the discounted Oura Ring 3, there are a few factors to consider before making a purchase. The Oura Ring 4 upgraded its battery life one more day, so you'd get an eight-day battery life in the fourth-generation ring, co ... Read full article.