Key Takeaways
- Top-ranked smart rings balance comprehensive health metrics with comfort and stylish design.
- Battery life varies significantly, influencing how often you’ll need to charge your device.
- Advanced features like vascular trend analysis and no-subscription models are key differentiators.
- Waterproofing and durability are essential for everyday wear, especially during workouts or in the rain.
- Price ranges from affordable to premium, with higher-cost options offering more detailed health insights and premium materials.
| smart ring | Battery Life | Size | Water Resistance | Material |
|---|---|---|---|---|
| RENPHO Lynx Smart Ring | 7 days | 10 | 5ATM | Titanium |
| Smart Ring 2.0 for Women and M | 3-5 days | Refer to size chart | IP68, 50 meters | — |
| Oura Ring 4 | Up to 8 days | 9 | — | Titanium |
| Smart Health Ring with Stress | 2-3 days (up to 10 with case) | — | Up to 80 meters | Silicone |
| Smart Ring for Women and Men | 5-7 days | Adjustable; measure finger circumference | IP68 | — |
| Smart Ring for Men & Women | — | Check image #2 for sizing; choose larger if between two sizes | — | — |
| Smart Ring for Women and Men | 5 days | 9# | — | Premium Stainless Steel |
| Smart Health Ring Fitness Trac | 3-5 days | Varies, measure finger circumference before purchase | IP68, 50 meters | — |
| RingConn Gen 2 Air Ultra-Thin | Up to 10 days | 8 | IP68, 100m | Titanium |
| 2026 Smart Ring Health Tracker | 2-3 days, up to 10 days with case | — | — | Silicone |
| RingConn Gen 3 Smart Ring with | Up to 14 days | 7 | IP68 | — |
| Smart Ring Health & Fitness Tr | 3-5 days | Refer to size chart and measure finger circumference | IP68 Waterproof, 30 meters | — |
| Smart Ring Health Tracker 5ATM | 2-5 days | — | 5ATM | Marine-grade 316L Stainless Steel |
| RENPHO Lynx Smart Ring | 7 Days | — | 50 Meters | Titanium Alloy, PC Resin |
| Oura Ring 5 | 6-9 days | 8 | — | Titanium |
More Details on Our Top Picks
RENPHO Lynx Smart Ring – Sleep & Activity Tracker, 7-Day Battery, Waterproof, Compatible with iOS & Android, Silver, Size 10
The RENPHO Lynx Smart Ring stands out for its robust 7-day battery life, making it ideal for users who prefer minimal charging disruptions. Compared with the Oura Ring 4, it may lack some advanced health metrics but offers a more accessible price point with seamless app integration and no subscription fees. Its waterproof design allows for all-day wear, even during swimming, which is a significant advantage for active users. However, proper sizing is essential, and some may find the fit less comfortable if not fitted correctly. This pick makes the most sense for those seeking reliable, continuous health tracking without the need for extra features or high-cost subscriptions.
Pros:- Long 7-day battery life with included charging case
- Waterproof up to 5ATM for swimming and outdoor activities
- No subscription fees with seamless app integration
- Accurate health and activity tracking
Cons:- Requires precise sizing with official kit for optimal fit
- Limited to size 10, which may not suit all finger sizes
- Potential discomfort if not fitted properly
Best for: Health-conscious individuals who want long-lasting, waterproof activity tracking without ongoing fees.
Not ideal for: Tech enthusiasts seeking detailed health insights or advanced metrics like Vascular Trends, which the Lynx does not provide.
- Battery Life:7 days
- Water Resistance:5ATM
- Material:Titanium
- Compatibility:iOS & Android
- Included:Charging case
- Size:10
- Waterproof:Yes
Our verdict“This ring is best suited for users who prioritize durability and long-term health monitoring over advanced features.”
Smart Ring 2.0 for Women and Men, Rose Gold, Fitness & Wellness Tracker, Waterproof
The Milavan Smart Ring 2.0 combines stylish design with comprehensive health monitoring, supporting over 187 sports modes and automatic data sync. Unlike the Oura Ring 4, it doesn’t offer as many health metrics but excels in versatility and fashion, with a lightweight, scratch-resistant finish. Its waterproof rating up to 50 meters makes it ideal for swimmers and outdoor enthusiasts. The absence of a display means data viewing relies entirely on app sync, which might be a downside for users wanting real-time feedback. This ring is perfect for active users who want a fashionable, feature-rich tracker without the high price or subscription costs.
Pros:- Stylish and lightweight with scratch and fingerprint resistance
- Supports 187 sports modes with automatic tracking
- Long battery life of 3-5 days
- Waterproof up to 50 meters
Cons:- No display for instant data viewing
- Data is for reference only and not medical-grade
- Careful sizing needed for comfort
Best for: Active individuals who want a stylish, multifunctional fitness ring with extensive sports support.
Not ideal for: Users seeking detailed, medical-grade health data or real-time feedback via a display.
- Size:Refer to size chart
- Chip:AB2026B3
- Sensor:5.0 sensor
- Battery Capacity:500mAh
- Battery Life:3-5 days
- Water Resistance:IP68, 50 meters
- Weight:3.85 ounces
- Supported OS:Android, iOS
Our verdict“Ideal for style-conscious fitness enthusiasts who prefer extensive sports tracking over real-time data display.”
Oura Ring 4 – Silver – Size 9
The Oura Ring 4 offers a highly comprehensive health experience, tracking over 50 metrics including sleep, activity, stress, and women’s health. Its titanium build and customizable styles make it comfortable for all-day wear. Compared to the RENPHO Lynx, the Oura provides more detailed insights and a longer 8-day battery life, but it comes with a subscription fee after the first month and requires proper sizing. It lacks GPS, limiting outdoor activity tracking, and may be overkill for casual users. This ring suits those who want detailed, continuous health data with a sleek, discreet design for lifestyle integration.
Pros:- Tracks over 50 health metrics for detailed analysis
- Up to 8 days of battery life for minimal charging
- Comfortable, lightweight titanium design
- Customizable styles with multi-ring options
Cons:- Requires sizing kit for proper fit
- Subscription fee applies after initial use
- No GPS for outdoor activity tracking
Best for: Health-focused users eager for detailed metrics and long-lasting battery life in a discreet form factor.
Not ideal for: Casual users or those unwilling to pay ongoing subscription fees for advanced insights.
- Material:Titanium
- Size:9
- Color:Silver
- Battery Life:Up to 8 days
- Features:Sleep, activity, stress, women’s health
- Compatibility:Android & iOS
Our verdict“Best suited for dedicated health enthusiasts who want detailed insights and a sleek, discreet device.”
Smart Health Ring with Stress and Sleep Monitoring, Waterproof Fitness Tracker for iOS and Android (Rose Gold, 8)
This Smart Health Ring excels in water resistance, rated up to 80 meters, making it perfect for swimmers and intense outdoor activities. Its real-time sleep, stress, and heart rate monitoring align with the needs of users who want a durable, no-fuss device. Compared with the Milavan Smart Ring 2.0, it offers similar health metrics but with a longer battery life of 2-3 days, extended to 10 with the charging case, and no subscription fees. The lack of a display means users must check data via the app, which might not suit those who want instant feedback. It’s best for active users prioritizing waterproof performance and straightforward tracking.
Pros:- Waterproof up to 80 meters for swimming and diving
- Accurate sleep and stress monitoring
- Long battery life, up to 10 days with charging case
- No subscription fee for full features
Cons:- No display for instant data viewing
- Sizing must be measured carefully for comfort
- Limited to basic health metrics without advanced features
Best for: Fitness enthusiasts and swimmers needing a waterproof, durable device with reliable sleep and stress monitoring.
Not ideal for: Users seeking real-time data on a device with a display or more advanced health metrics.
- Water Resistance Level:80 meters
- Battery Life:2-3 days (up to 10 with case)
- Metrics Measured:Sleep, stress, heart rate, activity
- Water Resistance:Up to 80 meters
- Material:Silicone
- Display Type:No display
Our verdict“Ideal for water lovers and active users who want durable, long-lasting health monitoring without ongoing costs.”
Smart Ring for Women and Men, Fitness Tracker with Free App, Sleep Monitor, Heart Rate & Step Tracking, Waterproof, Compatible with Android and iOS
This Smart Ring offers a versatile package with a focus on daily activity, sleep, and health monitoring, supporting a range of features including blood oxygen and step tracking. Its affordability and free app access make it a compelling choice over more premium options like the Oura Ring 4, especially for casual fitness users. The adjustable size ensures a comfortable fit, but proper measurement is necessary for security. While it doesn’t include GPS or advanced sensors, it covers the basics well. This ring is well-suited for active users looking for a reliable, budget-friendly tracker that can handle everyday health metrics.
Pros:- Long battery life of 5-7 days
- No subscription fees for app use
- Waterproof up to 80 meters
- Supports multiple health and activity metrics
Cons:- Proper sizing is necessary for a secure fit
- Limited GPS and advanced tracking features
- Battery life may vary with intensive use
Best for: Active individuals seeking a cost-effective, all-around fitness and sleep tracker for daily use.
Not ideal for: Users requiring in-depth health analysis or GPS navigation for outdoor activities.
- Size:Adjustable; measure finger circumference
- Battery Life:5-7 days
- Water Resistance:IP68
- Supported OS:Android & iOS
- Water Resistance Depth:80 meters
- Features:Heart rate, sleep, steps, blood oxygen
Our verdict“Best for everyday fitness and sleep tracking without the need for high-end features or ongoing costs.”
Smart Ring for Men & Women, Fitness Tracker, Sleep, Heart Rate, SpO2, Waterproof, iOS & Android Compatible
This smart ring stands out for its comprehensive health tracking capabilities, offering metrics like sleep, heart rate, SpO2, HRV, and stress insights. Unlike the RingConn Gen 2, it supports both sleep and nap monitoring, making it more versatile for daily wellness tracking. However, the snug fit typical of rings may cause discomfort for some, and detailed metrics are limited without an app subscription. Its waterproof IP68 rating ensures durability through daily activity and even swimming. The absence of complex data analysis makes it accessible but less suitable for users seeking detailed medical insights.
Pros:- Comprehensive health and activity monitoring
- Waterproof design suitable for daily wear
- Supports sleep and nap tracking
- No subscription required
Cons:- Smart rings can feel tighter than regular rings, causing discomfort
- Careful sizing measurement is necessary for a proper fit
Best for: Health-conscious individuals who want a well-rounded wearable without extra subscription costs
Not ideal for: Users needing detailed health analytics or medical-grade data, as it offers basic insights only
- Size:Check image #2 for sizing; choose larger if between two sizes
- Compatibility:iOS & Android
- Waterproof:IP68
- Features:Sleep tracking, activity tracking, heart rate, SpO2, HRV, stress insights, women’s health, family care
Our verdict“This pick is perfect for those seeking an all-in-one wellness tracker without ongoing fees.”
Smart Ring for Women and Men, Health Tracker with Heart Rate, Blood Oxygen, Blood Pressure, Sleep Monitoring, Step Counting, IP68 Waterproof, No App Fees (Silver, Size 9)
Compared with the Smart Ring for Men & Women B0GKG4KZ78, this model emphasizes vital signs like blood pressure alongside standard metrics, making it more suited for users focused on cardiovascular health. Its long battery life of 5-7 days and waterproof IP68 rating support active lifestyles, including swimming. However, it requires precise size measurement before purchase and offers limited data privacy details. The absence of a dedicated app or detailed health analytics means it’s ideal for users who want straightforward monitoring without complex data analysis or subscription costs.Pros:- Includes heart rate, blood oxygen, and blood pressure monitoring
- Long-lasting battery with multiple charging options
- IP68 waterproof rating for swimming and routine activities
- Supports remote photography and family health sharing
Cons:- Requires accurate sizing to avoid discomfort
- Limited device compatibility details
Best for: Individuals seeking a reliable fitness and health tracker with vital sign monitoring and long battery life
Not ideal for: Those who want detailed health insights or advanced data privacy features, as these are limited here
- Compatibility:iPhone and Android
- Battery Life:5 days
- Size:9#
- Material:Premium Stainless Steel
- Waterproof Rating:IP68
Our verdict“This smart ring is best for users who need vital sign tracking in a durable, long-lasting device without extra fees.”
Smart Health Ring Fitness Tracker for Men and Women, Sleep, Stress & Activity Monitoring, IP68 Waterproof, Long Battery Life, No Subscription Fees, Compatible with iOS & Android, Rose Gold
The Milavan Smart Health Ring offers a sleek, slim profile with comprehensive activity and sleep tracking, making it a strong alternative to bulkier options like the Oura Ring 4. Its stylish design in rose gold appeals to fashion-conscious users, while its long battery life of 3-5 days and IP68 water resistance make it highly practical. Nevertheless, its data is limited to basic metrics, and sleep or health data are not intended for medical purposes. It excels as a discreet, everyday wellness companion but doesn’t provide the detailed insights some advanced users might seek.Pros:- Stylish and comfortable slim design
- Comprehensive activity and sleep tracking
- Long battery life with quick charging
- No subscription fees
Cons:- Size fitting may require careful measurement
- Limited to basic health metrics without advanced features
Best for: Style-conscious users who want a subtle, fashionable fitness tracker with solid basic features
Not ideal for: Users requiring highly detailed health analytics or medical-grade data, as this is more consumer-grade
- Size:Varies, measure finger circumference before purchase
- Sensors:4.0 sensors for heart rate
- Sleep Tracking:Automatic, including deep, light, REM sleep
- Battery Life:3-5 days
- Water Resistance:IP68, 50 meters
Our verdict“This device suits those who prioritize style and discreet wellness tracking over detailed medical data.”
RingConn Gen 2 Air Ultra-Thin AI Smart Ring, 10-Day Battery, Fitness & Sleep Tracker, No App Fee, iOS & Android Compatible (Size 8, Dune Gold)
The RingConn Gen 2 Air stands out for its ultra-thin, sleek profile, with a 10-day battery life that surpasses many competitors like the B0GKG4KZ78. Its minimalist titanium build complements the subtle design, making it ideal for users wanting less bulky wear. While it lacks GPS and extensive storage, its waterproof rating of IP68 and personalized insights without a subscription appeal to those who prefer simplicity. The need for proper sizing and limited data capacity are minor tradeoffs for its long-lasting performance and minimalist aesthetic.Pros:- Sleek, ultra-thin minimalist design
- Up to 10 days of battery life
- Waterproof up to 100 meters for swimming and diving
- No app fee or subscription required
Cons:- Requires sizing kit for proper fit
- Limited storage (2 MB) for data
Best for: Minimalist users who want a discreet, lightweight fitness tracker with extended battery life
Not ideal for: Fitness enthusiasts requiring GPS or extensive data storage for advanced tracking
- Size:8
- Material:Titanium
- Water Resistance:IP68, 100m
- Battery Life:Up to 10 days
- Charging Time:90 minutes
Our verdict“This ultra-thin ring is ideal for those seeking a subtle, long-lasting tracker without extra features or fees.”
2026 Smart Ring Health Tracker for Men and Women, Sleep Stress Exercise Monitoring, Waterproof, Long Battery Life, No Subscription, iOS & Android Compatible (Silver)
The 2026 Smart Ring offers essential sleep, stress, and activity tracking in a straightforward design, similar to the B0DTHS2C5S but with a focus on simplicity. Its 2-3 day battery life, extendable to 10 days with the charging case, balances convenience with basic health insights, making it a good fit for casual users. Its waterproof rating of 80 meters ensures durability, but without a display or advanced features, it’s less suited for users who want real-time data or detailed analytics. This device clearly targets those seeking reliable, no-fuss wellness monitoring.Pros:- Accurate sleep and stress monitoring
- Long battery life with charging case
- Waterproof up to 80 meters
- No subscription needed for full features
Cons:- No display for instant data viewing
- Requires correct sizing for comfort
Best for: Casual fitness enthusiasts who want basic sleep and activity insights without complexity
Not ideal for: Users seeking detailed health data or real-time feedback, as this device provides only core metrics
- Operating System:Watch OS 8
- Water Resistance Level:80 Meters
- Battery Life:2-3 days, up to 10 days with case
- Display:No display
- Material:Silicone
Our verdict“This ring suits users who prefer simple, reliable health tracking without extra costs or complex features.”
RingConn Gen 3 Smart Ring with Vascular Trends, No Subscription, Vibration Alerts, Sleep & Fitness Tracking, 14-Day Battery, Size 7, Royal Gold
This model stands out for offering vascular health analysis combined with sleep and activity tracking without recurring subscription fees. Compared to the Oura Ring 5, it provides a dedicated focus on vascular trends, which benefits users interested in early vascular health insights. The long battery life of up to 14 days means less frequent charging, ideal for continuous wear. However, its sizing system differs from standard rings, requiring a separate measurement kit, which could delay purchase. Limited color options also mean fewer customization choices. Overall, this pick makes the most sense for users seeking an affordable, subscription-free health tracker with a discreet design.
Pros:- No subscription fees for health tracking features
- Discreet vibration alerts for notifications
- Long-lasting battery life of up to 14 days
- Water-resistant design suitable for daily wear
Cons:- Sizing differs from standard rings, requiring a sizing kit
- Actual battery life may vary based on usage
- Limited color options
Best for: Health-conscious users who want detailed vascular insights without ongoing fees
Not ideal for: People who prefer a wider range of colors or standard ring sizing and quick setup
- Size:7
- Color:Royal Gold
- Battery Life:Up to 14 days
- Water Resistance:IP68
- Connectivity:App-based
- Sensor:Vascular health analysis
Our verdict“A smart ring that excels for users prioritizing vascular health monitoring with long battery life and no ongoing costs.”
Smart Ring Health & Fitness Tracker for Men & Women, Heart Rate, SpO₂, Sleep & Activity Monitoring, Waterproof, Long Battery, Family Care Mode, No Subscription (Gold, 8)
This ring offers comprehensive health metrics—including heart rate, blood oxygen, and sleep—making it a versatile choice for wellness-focused users. Unlike the Oura Ring 5, which emphasizes sleep and AI insights, this model supports multiple sports modes with automatic activity detection, appealing to active users. Its battery life of 3-5 days balances performance without frequent charging. Proper sizing is critical here, as incorrect measurement can impair fit and accuracy. The limited storage capacity and lack of GPS mean it’s less suited for advanced fitness tracking. Overall, this pick makes the most sense for those seeking a durable, no-fuss health ring with reliable performance at an affordable price.
Pros:- Accurate real-time health and activity monitoring
- Long-lasting battery life of up to 5 days
- Waterproof design suitable for sports and daily wear
- Supports multiple sports modes with automatic tracking
Cons:- Requires proper sizing measurement before purchase
- Limited storage capacity (60 MB)
- No GPS functionality
Best for: Active individuals who want reliable, all-day health tracking without subscription fees
Not ideal for: Fitness enthusiasts needing GPS or extensive storage for detailed workout data
- Size:Refer to size chart and measure finger circumference
- Sensors:5.0 sensors for health data tracking
- Sleep Monitoring:Automatic sleep quality tracking
- Water Resistance:IP68 Waterproof, 30 meters
- Battery Life:3-5 days
- Compatibility:Android 5.0+ and iOS 9.0+
Our verdict“A well-rounded, budget-friendly option for users who want continuous health monitoring with minimal fuss.”
Smart Ring Health Tracker 5ATM Waterproof Sport Ring with Vibration Alerts, Blood Oxygen, Sleep Monitoring, and Cycle Prediction
This sporty ring provides 24/7 health insights with high-precision sensors, including blood oxygen, heart rate, and sleep stages, making it ideal for active users. Its durable marine-grade stainless steel and 5ATM water resistance mean it can handle intense workouts and swimming sessions. Unlike the Oura Ring 5, which offers extensive research-grade metrics, this model focuses on real-time, actionable data with customizable vibration alerts for calls and health warnings. Battery life varies between 2-5 days, depending on usage, which might require frequent charging for heavy users. Limited color options and the need for pairing with an app are minor inconveniences. Overall, this pick suits users who want a stylish, durable, and precise activity tracker for active lifestyles.
Pros:- Discreet, stylish design for daily wear
- Accurate health and sleep monitoring with advanced sensors
- Durable, water-resistant construction for active use
- Customizable vibration alerts for notifications
Cons:- Battery life may vary depending on usage
- Requires pairing with a smartphone app for full functionality
- Limited color options (Sunlight Gold only)
Best for: Active users needing durable, water-resistant health tracking with real-time alerts
Not ideal for: Users seeking a wide variety of colors or integrated smart features beyond health monitoring
- Water Resistance:5ATM
- Material:Marine-grade 316L Stainless Steel
- Battery Life:2-5 days
- Charging:90-minute magnetic
- Sensors:99% accuracy
- Sleep Stages:Light, Deep, REM, Awake
Our verdict“An excellent choice for active individuals who want a tough, precise health tracker with real-time alerts.”
RENPHO Lynx Smart Ring – All Day Sleep & Activity Tracking, Includes Charging Case, Compatible with iOS & Android, Silver, Size 9
This ring offers extensive health metrics—sleep, blood oxygen, heart rate, stress, steps, and calories—making it a versatile, all-day wellness companion. Unlike the Oura Ring 5, which emphasizes sleep and research-grade data, the RENPHO Lynx provides comprehensive insights suitable for users wanting a holistic view of their health. Its 7-day battery life paired with a charging case minimizes charging frequency. The waterproof design supports swimming and outdoor activities, while the straightforward app integration makes setup easy. Proper sizing is essential, as ill-fitting rings can compromise accuracy. Its focus remains primarily on health metrics, so those seeking smart features like notifications might find it lacking. Overall, this ring is ideal for users seeking a durable, feature-rich wellness tracker without ongoing fees.
Pros:- Accurate health and activity tracking with comprehensive metrics
- Long-lasting 7-day battery with included charging case
- Waterproof design suitable for swimming
- No subscription fees, compatible with iOS and Android
Cons:- Requires proper sizing with the official kit for accurate fit
- Limited to specific sizes, may not fit all users comfortably
- Features are primarily health-focused, lacking additional smart functionalities
Best for: Wellness-focused users who want continuous health insights and long battery life
Not ideal for: Tech enthusiasts looking for advanced smart features or extensive customization options
- Water Resistance:50 Meters
- Material:Titanium Alloy, PC Resin
- Supported Application:Renpho Health
- Metrics Measured:Heart Rate, Sleep, Stress, Blood Oxygen, Calories
- Connectivity:Bluetooth
- Battery Life:7 Days
Our verdict“A durable, health-centric smart ring offering extensive metrics and long battery life for wellness enthusiasts.”
Oura Ring 5 – Silver – Size 8 – Smallest Smart Ring for Sleep, Activity, Women’s Health, AI Guidance, 1 Week Battery
The Oura Ring 5 stands out for its tiny, lightweight design that maximizes comfort without sacrificing extensive health tracking. It monitors over 50 metrics with research-grade precision, providing AI-driven insights that help refine sleep, activity, and wellness routines. Unlike the other rings in this list, its compact size is ideal for those valuing subtlety and elegance. The one-week battery life reduces daily fuss, and membership options include personalized guidance, adding value for dedicated health users. However, it requires a sizing kit, which can delay initial setup, and the subscription fee after the first month might deter some. This ring makes the most sense for users who prioritize highly accurate sleep and wellness data in a sleek package.
Pros:- Extremely small and lightweight for comfort and style
- Tracks extensive health metrics with high accuracy
- Long battery life of up to a week
- AI guidance for personalized health insights
Cons:- Requires sizing kit for proper fit, which may delay purchase
- Subscription fee applies after the first month
- Limited color and size options
Best for: Sleep-focused users and those seeking research-grade health metrics in a discreet, small form factor
Not ideal for: Users seeking extensive smart features or customizable colors with quick setup
- Size:8
- Color:Silver
- Battery Life:6-9 days
- Material:Titanium
- Health Metrics:50+
- Compatibility:Android & iOS
Our verdict“A perfect choice for sleep enthusiasts and minimalists needing research-grade insights in a tiny, stylish package.”
How We Picked
The products in this roundup were selected based on their performance, usability, build quality, and overall value. I prioritized rings that offer accurate health metrics like sleep, heart rate, and activity tracking, while also considering comfort and ease of use. Battery life was a major factor, as longer-lasting devices reduce hassle. Compatibility with iOS and Android expands usability, and waterproofing ensures durability in real-life conditions. The ranking also reflects user reviews and feature innovation, providing a balanced view for different types of buyers.| smart ring | Material |
|---|---|
| RENPHO Lynx Smart Ring | Titanium |
| Smart Ring 2.0 for Women and M | — |
| Oura Ring 4 | Titanium |
| Smart Health Ring with Stress | Silicone |
| Smart Ring for Women and Men | — |
| Smart Ring for Men & Women | — |
| Smart Ring for Women and Men | Premium Stainless Steel |
| Smart Health Ring Fitness Trac | — |
| RingConn Gen 2 Air Ultra-Thin | Titanium |
| 2026 Smart Ring Health Tracker | Silicone |
| RingConn Gen 3 Smart Ring with | — |
| Smart Ring Health & Fitness Tr | — |
| Smart Ring Health Tracker 5ATM | Marine-grade 316L Stainless Steel |
| RENPHO Lynx Smart Ring | Titanium Alloy, PC Resin |
| Oura Ring 5 | Titanium |
