The Best Smart Rings for Health Tracking: In 2025, health-conscious individuals are increasingly turning to discreet wearables that don’t compromise on aesthetics or functionality. Enter the smart ring—a powerful, sensor-packed device that fits on your finger and monitors everything from sleep and stress to heart rate and oxygen levels.
Unlike bulky smartwatches or fitness bands, smart rings offer comfort, subtlety, and extended battery life while delivering serious health insights. Whether you’re an athlete, a biohacker, or simply someone looking to improve sleep or stay on top of your well-being, this guide will help you discover the best smart rings on the market.
Why Choose a Smart Ring for Health Tracking?
Before diving into the top picks, let’s look at the benefits of using a smart ring:
- Discreet and stylish: No screens or alerts on your wrist.
- Lightweight and comfortable: Ideal for sleep and 24/7 wear.
- Highly accurate sensors: Proximity to arteries in your fingers improves signal quality.
- Better battery life: Typically 4–7 days on a single charge.
- Privacy-conscious: No GPS or microphone, which some users prefer.
Top 5 Smart Rings for Health Tracking in 2025
1. Oura Ring Gen 4
Best overall for comprehensive health tracking
The Oura Ring remains the gold standard in the smart ring space. The fourth-generation model, released in early 2025, introduces improved sensors, AI-driven insights, and sleep coaching powered by machine learning.
Key features:
- Advanced sleep staging (REM, deep, light)
- Continuous heart rate & HRV tracking
- Temperature trend monitoring
- Blood oxygen (SpO2) sensing
- AI readiness and recovery scores
- Up to 7-day battery life
- Sleek titanium build in multiple finishes
Best for: All-around wellness monitoring, elite sleep tracking, athletes, biohackers.
2. Ultrahuman Ring AIR
Best for metabolic health and body composition
India-based Ultrahuman has emerged as a serious contender, especially for users focused on metabolic health. It integrates with glucose monitors and offers deep insights into metabolic flexibility, energy use, and recovery.
Key features:
- Resting heart rate, HRV, SpO2
- Temperature sensing
- Calorie burn and activity tracking
- Syncs with CGM sensors (sold separately)
- Focus and recovery scores
- Aircraft-grade titanium + matte finishes
- 5–6 day battery life
Best for: Fitness enthusiasts, biohackers, users tracking glucose and metabolism.
3. RingConn Smart Ring
Best value smart ring for balanced performance
The RingConn offers many of the same features as the Oura Ring but without a subscription fee. It provides a good balance of health tracking, stylish design, and an affordable one-time cost.
Key features:
- Sleep score and analysis
- Heart rate and HRV
- Blood oxygen tracking
- Temperature monitoring
- Water and dust resistant (IP68)
- 5–7 day battery with quick charging
- No monthly fee
Best for: Budget-conscious users who want subscription-free insights.
4. Movano Evie Ring
Best smart ring for women’s health
Movano’s Evie Ring was designed specifically for women, with a focus on hormonal health, menstrual tracking, and daily cycle-based performance insights.
Key features:
- Heart rate, HRV, and SpO2
- Skin temperature variation
- Menstrual cycle tracking
- Stress and mood logging
- FDA-cleared metrics (pending)
- Open-ring design for comfort
- 4-day battery life
Best for: Women looking for a holistic view of hormonal and physical wellness.
5. Circular Ring Slim (2025 Edition)
Most customizable smart ring
Circular’s latest ring offers personalization options through interchangeable outer shells and advanced features like vibration alerts, smart alarms, and AI-powered coaching.
Key features:
- Sleep score and apnea detection
- HR, HRV, temperature, SpO2
- Vibration alerts for inactivity or notifications
- AI wellness assistant (“Kira+”)
- Optional shell styles
- 5-day battery
Best for: Users wanting flexible style and personalized coaching.
Features to Look for in a Health-Tracking Smart Ring
1. Sensor Accuracy
Smart rings use infrared photoplethysmography (PPG), temperature sensors, and accelerometers. Look for multi-sensor setups and clinical validation (like Oura and Movano).
2. Battery Life
Most smart rings last between 4 to 7 days. Faster charging (under 1 hour) is also a plus.
3. Data Access and Subscriptions
- Some brands (like Oura) require a monthly fee for advanced insights.
- Others (like RingConn) offer full data access with no ongoing cost.
4. Fit and Comfort
Rings come in sizes 6–13 and some offer sizing kits. The fit affects both comfort and sensor performance.
5. App Interface
The quality of the companion app matters—a good app offers intuitive dashboards, personalized recommendations, and historical data.
FAQs
Are smart rings accurate?
Yes, especially for passive metrics like sleep, heart rate, HRV, and body temperature. The finger offers better optical signal quality than the wrist.
Can I wear a smart ring 24/7?
Absolutely. Most smart rings are water-resistant and designed for all-day comfort, including during sleep and exercise.
Do smart rings track steps or workouts?
Yes, but not as accurately as smartwatches for step counts or complex exercises. Some, like Ultrahuman and Circular, offer basic movement insights.
Can a smart ring replace a smartwatch?
It depends. For health tracking, yes. But for on-screen alerts, music control, or GPS workouts, a smartwatch is still more versatile.
Are there smart rings designed for women?
Yes. The Movano Evie Ring, for example, is optimized for women’s health metrics including menstruation and hormonal trends.
Do I need a subscription for smart ring features?
Not always. Oura and Ultrahuman require subscriptions for advanced features. RingConn and Circular provide full access with no monthly fees.
How do I charge a smart ring?
Most come with a magnetic charging dock or cradle. Charging typically takes under 90 minutes and lasts 4–7 days.
Is my health data secure?
Reputable companies encrypt your data and allow you to control data sharing. Review privacy policies carefully before syncing.
Can I wear a smart ring with other jewelry?
Yes, though it’s best to avoid stacking it directly with other rings to prevent scratches or interference with sensors.
What finger should I wear the smart ring on?
Most wear it on the index, middle, or ring finger of the non-dominant hand for optimal comfort and sensor accuracy.