If you’ve been waiting for a smaller version of the Oura Ring, the company’s latest wearable is now available for preorder ahead of its June 4th release from Oura and various third-party retailers, including both Amazon and Walmart. The Oura Ring 5, which starts at $399, is 40 percent smaller than its predecessor, thanks to a design that’s both slimmer and lighter. Oura also promises improved accuracy and battery life, letting you get up to nine days of use on a single charge. In addition to the