Oura Ring 4: 5 Pros and 2 Cons
I would buy the Oura Ring 4, but it does have a couple of downsides

The Oura Ring 4 is a popular wearable device that discreetly monitors your health and fitness. It's slimmer, smarter, and lasts longer than its predecessor. From a distance, it's a simple yet stylish silver, gold, or black ring. On closer inspection, it's packed with advanced technology and clever sensors.