Top Fitness Rings of 2025 Tested and Reviewed by Experts

As an Exercise Physiologist and passionate advocate for wearable tech, I’ve tested and dissected dozens of wearable fitness gadgets. While smartwatches continue to dominate the fitness tracking space, 2025 is proving to be the year of the fitness ring. Compact, non-intrusive, and powerfully smart, these sleek wearables blend seamlessly into your lifestyle while delivering advanced health insights.

In this blog, I’ll break down the best fitness rings of 2025 based on my expert testing and review process, which includes real-world use, feature comparisons, comfort analysis, and health data accuracy. Below, you'll find everything you need to know before investing in your next fitness companion.

Why Choose a Fitness Ring Over a Smartwatch?

Before diving into the top contenders, it’s worth understanding the advantages of fitness rings over traditional wearables:

• Discreet and stylish: Rings feel more like jewelry than a gadget, making them ideal for 24/7 wear.
• Comfort for all-day & night wear: Less bulky than a watch, especially for sleep tracking.
• Reliable battery life: Most last 4–7 days per charge.
• Highly accurate sensors: Positioned closer to arteries for precise heart rate and temperature readings.

Ready to meet the best of 2025? Let’s jump in!

Top Fitness Rings of 2025

1. Oura Ring Gen 4 – Best Overall

Price: $349 + optional subscription

The Oura Ring Gen 4 continues to dominate the fitness ring landscape—and with good reason. It combines premium-grade design with high-level biometrics that rival many wrist-based devices.

• Key Features:
• Heart rate and HRV monitoring
• SpO2 (blood oxygen) tracking
• Accurate sleep staging & readiness score
• Cycle tracking and temperature monitoring
• 7-day battery and titanium build

What I Liked: The Oura’s readiness score is a standout feature—it smartly combines sleep, activity, and recovery metrics to help you plan your day. The app design is intuitive, detailed, and consistent.

What Could Improve: Daily insights can feel vague without a subscription, and some fitness tracking features still aren’t as robust as those on watches.

2. Ultrahuman Ring Air – Best for Biohackers

Price: $349 (no ongoing subscription)

Ultrahuman’s latest wearable leans hard into biohacking with advanced metabolic data and nervous system tracking. With an emphasis on recovery, it's ideal for tech-forward athletes.

• HRV Index + skin temperature deviation
• Glucose curve integration via M1 CGM (sold separately)
• Rapid battery charging (full charge in ~50 mins)
• Highly durable titanium outer shell

What I Liked: The integration with continuous glucose monitors (CGMs) is revolutionary and ideal for high-performance individuals or anyone optimizing for longevity.

What Could Improve: Activity recognition still lags behind other models, and metrics may overwhelm casual users.

3. Movano Evie Ring – Best for Women’s Health

Price: ~$269 (no subscription)

Designed specifically with women in mind, the Evie Ring is one of the first fitness rings cleared by the FDA. It tracks essential biometrics while prioritizing reproductive health and emotional well-being.

• Menstrual and mood tracking
• FDA-cleared SpO2 and heart rate sensors
• Sleep stages & recovery analysis
• Discreet, jewelry-style appearance

What I Liked: Finally, a ring that takes women's health seriously—featuring accurate period insights and mood correlations. Its design looks like a designer ring, not a fitness tool.

What Could Improve: Battery life (~3 days) is shorter than competitors. Limited fitness tracking may not cater to athletes.

4. RingConn Smart Ring – Best Battery Life

Price: ~$279 (no subscription)

The RingConn Smart Ring is making waves with its industry-best battery performance—lasting up to 7 days on a single charge.

• 7-day true battery life
• No monthly fees
• Tracks all-day heart rate, sleep, activity
• Airplane Mode for privacy-conscious users

What I Liked: The longevity and affordable price make this a great entry-level ring. It balances simplicity with reliable data.

What Could Improve: The app doesn’t offer in-depth personalization as others; accuracy in sleep far exceeds activity tracking.

5. Circular Ring Slim – Most Customizable

Price: $299 (no subscription fees)

The Circular Smart Ring has been upgraded for 2025 with a slimmer design and AI-assisted coaching via their proprietary assistant, Kira+. This one’s for tech-savvy users who want robust customization.

• Real-time AI coaching through app
• Custom-colored rings and interchangeable shells
• Metrics on energy levels, focus, and productivity
• Fits snugly and comfortably even for small fingers

What I Liked: The customizable elements make it feel personal and motivating. AI insights often feel like having a personal trainer on call.

What Could Improve: May be too features-rich for users seeking simple metrics. Ring sizing process isn’t as smooth as competitors.

How We Tested

Each of these rings was worn 24/7 for at least 10 days, analyzing:

• Data accuracy (benchmarked against ECG monitors and wearables)
• Battery life in real-world scenarios
• Comfort during sleep and workouts
• App usability and data visualization

We also considered customer reviews, software updates, and company responsiveness when assigning scores.

Buyer’s Guide: Choosing the Right Fitness Ring

Best for Everyday Wellness

Oura Gen 4 and Evie Ring offer the most rounded health insights for general lifestyle users.

Best for Athletes

Ultrahuman Ring and Circular Slim provide niche features like glucose tracking and AI performance insights.

Best Budget Option

RingConn Ring gives solid basics at a great price without monthly fees.

Looking for Maximum Discretion?

Evie and Oura have elegant, ring-like designs that resemble fine jewelry.

Final Verdict

2025 is shaping up to be the landmark year for mainstream adoption of smart rings. Whether you're a sleep-deprived parent, high-performance athlete, mindfulness seeker, or simply health-curious, there’s a fitness ring tailor-made for you.

Our expert recommendation? If you're looking for:

• The best overall experience → Oura Gen 4
• Best for accuracy & biohacking → Ultrahuman Ring Air
• Best for women’s health → Movano Evie Ring
• Best battery life → RingConn

Fitness tracking is no longer about burdening your wrist with tech—let your finger do the work. Fitness rings provide a sleek, science-backed way to level up your health with minimal disruption.

FAQs

Are fitness rings more accurate than smartwatches?

In many cases, yes—rings often sit closer to arteries and deliver more consistent readings during rest and sleep.

Can I