10 Best Activity Tracker Ring 2025 in the United States

The Oura Ring 4 is a sleek and modern activity tracker designed in a ring shape that appeals to unisex adults. One of its standout features is the extended battery life, lasting up to 8 days, which is excellent for users who prefer not to charge their devices frequently. The ring includes comprehensive activity tracking capabilities, such as heart rate monitoring and sleep tracking, making it a versatile tool for fitness enthusiasts and those looking to improve their sleep quality.

Additionally, its water resistance feature ensures it can withstand daily activities, including washing hands or showering. The Oura Ring 4 is also compatible with Bluetooth, making it easy to sync with other devices for enhanced functionality. However, one notable drawback is the lack of GPS, which might be a limitation for those who rely on precise location tracking during their workouts. The ring's modern design and silver color make it a fashionable accessory, and the sizing kit helps ensure a proper fit.

The package includes the ring, charger, USB cable, information booklet, and quick start guide, providing everything needed to get started. The Oura Ring 4 is a strong contender for anyone seeking a stylish and functional activity tracker, particularly those who prioritize sleep and heart rate monitoring over GPS capabilities.

The ULTRAHUMAN Ring AIR is a versatile and sleek activity tracker ring designed for both men and women. The ring comes in multiple sizes, but it's crucial to use the provided sizing kit to ensure a snug fit, avoiding the hassle of returns and exchanges. It's packed with features, offering comprehensive health tracking, including sleep, activity, stress, heart rate, and women's health insights. Women can benefit from its advanced tracking of ovulation, cycles, and pregnancy, providing precise and personalized health insights.

The ring's sleep tracking capabilities are robust, offering detailed insights into your sleep stages and quality, which can help you improve your rest and recovery. Activity tracking is equally strong, with features to monitor steps, workouts, and calories, along with recovery insights to optimize your fitness routine. The Ring AIR is made from durable space-grade titanium, ensuring long-lasting use and comfort. It's also water-resistant up to 100 meters, making it suitable for swimming and everyday wear.

One of the highlights is that there's no subscription fee for standard features, which is a nice advantage over some competitors. On the downside, the ring doesn't have built-in GPS, which might be a limitation for users who rely on GPS-based tracking. Additionally, battery life is somewhat modest, requiring regular charging. Despite these drawbacks, the ULTRAHUMAN Ring AIR is an excellent choice for those looking for a stylish, comprehensive health and fitness tracker that supports a wide range of metrics without ongoing subscription costs.

The femometer Smart Ring Gen2 is a lightweight and slim activity tracker designed especially with women's health in mind. It features continuous heart rate and heart rate variability monitoring, paired with detailed sleep analysis covering deep, light, and REM stages. Its advanced basal body temperature (BBT) technology is a strong feature for cycle and fertility tracking, making it particularly useful for women looking to monitor their reproductive health.

Comfort and durability are well addressed with a premium ceramic and aluminum build, certified waterproof up to 100 meters, allowing for day and night wear without worry. The ring offers compatibility with both iOS and Android devices through Bluetooth and comes with a free lifetime subscription to the femometer app, which helps in syncing and analyzing your data seamlessly. Battery life is impressive, offering up to 35 days when paired with its charging case, providing extended usage between charges.

The ring does not have GPS functionality, so it may not suit those needing location-based activity tracking. It has an elegant and discreet design, weighing just over 3 grams, making it comfortable for 24/7 wear. It also comes with a sizing kit to ensure a good fit before purchase, which is thoughtful since fit is crucial for rings. This ring is a solid choice for those focusing on health monitoring, sleep insights, and fertility tracking rather than detailed sports tracking or navigation.