10 Best Smart Rings 2025 in the United States

The Oura Ring 4 is a sleek, silver smart ring designed for 24/7 wear, made from durable titanium that’s also water resistant, making it comfortable and long-lasting. It excels at health tracking, monitoring over 30 biometrics including sleep quality, heart rate, stress levels, and women's health data with high accuracy thanks to its Smart Sensing technology. This makes it a great choice if you want detailed insights into your wellness and recovery.

The ring’s battery lasts up to 8 days, which is convenient as you won’t need to charge it frequently. It connects via Bluetooth and is compatible with both iOS and Android devices, syncing with popular health and fitness apps to keep your data organized. One important note is the membership subscription required after the first free month to access the app’s full features, which adds an ongoing cost. The ring does not have GPS, so it’s less suited for tracking outdoor activities like running routes.

Additionally, sizing is unique and requires ordering a sizing kit first, which adds a step before purchase. If you’re looking for a discreet, stylish smart ring focused on accurate sleep and health tracking with good battery life and app support, the Oura Ring 4 is a strong contender. However, the subscription model and lack of GPS might be downsides depending on your needs.

The RingConn Gen 2 smart ring is a solid choice for those looking for comprehensive health tracking without the hassle of subscriptions. Its standout feature is the sleep apnea monitoring, which sets it apart from many competitors. This is particularly useful for users concerned about sleep health. The ring also tracks a broad range of health metrics, including stress, heart rate, HRV, blood oxygen saturation, and women's health, making it versatile for various health-conscious users.

The device is compatible with both Android and iOS, ensuring broad usability. One of its significant strengths is its impressive 10-12 day battery life, which reduces the need for frequent charging. The design is minimalist and lightweight, promoting comfort for everyday wear. Additionally, it's highly durable and waterproof up to 100m, making it suitable for active users and swimmers.

However, the lack of GPS might be a downside for those who want location tracking for outdoor activities. The product's larger size and heavier weight might not be suitable for everyone, particularly those with smaller hands or those who prefer a less noticeable wearable. The unique sizing system also means you need to get the right fit before purchasing, potentially adding a step to the buying process. Despite these minor drawbacks, the RingConn Gen 2 offers a robust and evolving health tracking experience with its no-subscription model and OTA updates, making it a valuable investment for long-term health monitoring.

The Milavan Smart Health Ring is a slim, stylish fitness tracker designed for both men and women who want continuous health monitoring without the bulk of a wristband. It measures heart rate, blood oxygen, and blood pressure automatically every 30 minutes, providing detailed health insights throughout the day. The ring also tracks sleep stages, including deep and light sleep, helping you understand your rest quality. With 8 sports modes like running, cycling, and yoga, it covers a variety of activities, capturing steps, calories, distance, and heart rate during workouts.

The ring is compatible with both iPhone and Android devices, making it widely usable. It lasts 3 to 5 days on a quick 1-2 hour charge, which is decent for a device this small. The IP68 waterproof rating means it can handle sweat and rain, though it's best not to submerge it for long periods. In terms of comfort, the ring is very thin (just 2mm) and polished inside, which suits most fingers and sports activities. However, sizing is important, so measuring your finger before buying is recommended to avoid fit issues. The device also offers extras like remote photo control via the app and a care mode to share health data with family or friends.

The battery capacity is quite small, so heavy use might require more frequent charging. While it provides comprehensive health data, it relies on your smartphone’s GPS for tracking routes, meaning it depends on your phone during outdoor activities. The smart ring does not require a subscription fee, which is a benefit compared to some competitors. This ring suits fitness enthusiasts and health-conscious users who want a discreet, multipurpose tracker with solid health features and decent battery life, but it may be less suitable for those who prefer a device with built-in GPS or longer battery endurance.