Oura Ring 5

$399-$499 · Wearables

The most-cited recovery wearable still has no screen, and that is the point. The Gen 4 reads sleep stages, HRV, and body temperature from your finger, runs about a week per charge, and never buzzes you mid-meeting. If you want the data without wearing a second phone, the ring remains the answer. Membership required, worth knowing going in.