10 Best Smart Ring 2025 in the United States

The Oura Ring 4 is designed to be a sleek, comfortable smart ring that tracks a wide range of health data, including sleep, activity, heart rate, stress, and more, making it a solid choice for anyone interested in detailed health insights without wearing a bulky device. Its titanium build is durable yet gentle on the skin, and it’s water resistant, so it can be worn 24/7 without worry. Battery life lasts up to 8 days, which is quite convenient since it requires less frequent charging compared to many other fitness trackers.

The ring uses Bluetooth to sync smoothly with both iOS and Android devices, and it integrates with over 40 popular health and fitness apps, helping you keep all your data in one place. One useful feature is the sizing kit included with the purchase, as the ring sizes differ from standard rings, ensuring a better fit. However, the Oura Ring 4 does not have GPS, so it might not be the best option if you want to track outdoor routes or runs. Also, it requires a monthly or yearly membership subscription after the first free month, which adds to the cost over time.

Some users might find that the ring lacks screen or vibration alerts, which means you won’t get instant notifications but this design choice helps keep it minimal and focused on tracking. For those seeking a stylish and accurate smart ring primarily for sleep and health monitoring, this model is a worthwhile option, especially if you value comfort and long battery life.

The RingConn Gen 2 Smart Ring is a multifunctional health monitoring device that stands out with its advanced sleep apnea tracking technology. Developed in collaboration with leading institutions, this smart ring offers detailed insights into your sleep health, which can be particularly beneficial for those with sleep disorders. One major advantage is that it provides these insights without any recurring app subscription fees, making it a cost-effective option over time. Additionally, the ring tracks various health metrics, including activity, stress, heart rate, HRV (Heart Rate Variability), and blood oxygen levels. This makes it a comprehensive tool for monitoring wellness.

Its water resistance up to 100 meters and a long battery life of up to 12 days (or even longer with larger sizes) make it a practical choice for everyday wear, including during swimming or intense workouts. The RingConn Gen 2 also boasts a minimalist, lightweight design, ensuring comfort even during prolonged use. It includes a sizing kit to help you find the right fit before purchase, reducing the hassle of returns. While it lacks built-in GPS, which may be a downside for those looking for location tracking features, it excels in other key areas. The included charging case provides an impressive battery extension of up to 150 days, reducing the frequency of charges. The smart ring is compatible with both Android and iOS devices via Bluetooth, ensuring broad usability. For those utilizing health savings accounts, it's HSA/FSA eligible, providing another purchasing option. Despite the absence of built-in GPS and the need to size correctly before buying, the RingConn Gen 2 Smart Ring is a solid choice for anyone looking to track their health in a convenient and advanced way.

The ULTRAHUMAN Ring AIR is a compact and durable smart ring designed primarily for health and fitness tracking. Made from space-grade titanium, it offers a lightweight feel and strong build, while its water resistance up to 100 meters means you can wear it during workouts and swimming without worry. Its standout feature set includes detailed sleep tracking that breaks down stages like REM and deep sleep, plus personalized advice to help improve sleep quality. It also monitors heart rate, stress levels with a unique rhythm score, and overall activity, making it a versatile tool for daily wellness.

Women can benefit from specialized health insights such as cycle tracking, ovulation prediction, and pregnancy support, which is a nice addition not found in many smart rings. The device connects via Bluetooth to the Ultrahuman App, which provides these insights without requiring a subscription, so you get essential features without extra cost. Battery life is moderate, typical for smart rings, and should be manageable with daily charging. One important note is the sizing: Ultrahuman uses its own sizing system, so purchasing the sizing kit first is essential to ensure a comfortable fit and avoid returns.

While it lacks GPS, this is common in smart rings and is unlikely to be a major drawback unless you specifically want location tracking. Its HSA/FSA eligibility offers a financial benefit for some users. The Ultrahuman Ring AIR suits those seeking a comprehensive health tracker in a sleek form, especially users interested in detailed sleep and women’s health features. It may not be ideal if GPS or a subscription service with advanced analytics is a priority.