Oura Ring 4 deal: Get up to 31% off at Amazon

TL;DR: The Oura Ring 4 is finally on sale at Amazon. As of June 1, you can score up to 31% off select colors, including midnight (ceramic), petal (ceramic), and stealth (metallic).

If you've been eyeing the Oura Ring 4, but couldn't justify the $399 price tag, you have a short window to get it on sale at Amazon. With the Oura Ring 5 making its debut on June 5 (it's available for preorder now), the company is temporarily knocking the price off of select finishes/colors/sizes.

The only catch is that the discounts vary depending on your finger size and the finish you want. If you happen to be a size 8 and want the ceramic midnight colorway, you're in luck — it's 31% off. For everyone else, you'll just have to click through your specific size and preferred color to see the markdown.

Even though it's about to be replaced by the newer model (which is said to be 40 percent smaller), the Oura Ring 4 is a Mashable Choice Award winner that still accurately tracks your sleep, activity, and cycle data without the premium price tag. At $345, it’s a much more reasonable entry point into smart rings.