Oura Ring 4 ($349, originally $399)
Chances are someone you know wears an Oura Ring — but you may not know all it can do. It lasts up to eight days per charge and tracks more than 50 health metrics including sleep, heart health, stress, and activity. You can also use HSA or FSA funds toward your purchase. The first month of membership is included, then it costs $6 per month. Read our Oura Ring 3 review for more; it covers an older model.
Editor Quote: "This product is best for people who want access to their own health data. The ring also tracks patterns over time, so you get a good sense of your typical heart rate, calorie burn, and sleep patterns. If you want to make a change, it becomes that much easier to pinpoint the problem with the Oura Ring. If you're already an active person or want to become more active, this is a high-quality tracker." — India Yaffe, former associate shopping editor
