In 2025, your health monitoring options have expanded dramatically with advanced SPO2-equipped smartwatches. You’ll find exceptional choices from industry leaders like Ticwatch and Samsung, alongside specialized offerings from Garmin and Fitbit. These devices don’t just track your blood oxygen—they integrate this data with extensive health metrics to provide insights you wouldn’t have imagined possible just a few years ago. Want to know which watch deserves space on your wrist and why one model might serve your specific needs better than another?
TicWatch Pro 5 Smartwatch
The TicWatch Pro 5 represents a significant leap forward in wearable technology, powered by the cutting-edge Snapdragon W5+ Gen 1 Wearable Platform. This Android-compatible smartwatch combines powerful hardware (2GB RAM and 32GB storage) with an innovative dual-layer display system that delivers exceptional battery performance of up to 80 hours on a single charge.
Health enthusiasts will appreciate the comprehensive monitoring capabilities, including continuous SpO2 (blood oxygen) tracking that keeps you informed about your oxygen saturation levels throughout the day and night. The advanced heart health features include 24-hour monitoring and irregular heartbeat detection, providing valuable insights into your cardiovascular wellness.
Fitness tracking is equally impressive with over 100 professional sports modes, built-in GPS, and new Smart Training features like Recovery Time and VO2 MAX calculations that help optimize your workout schedule. All this data syncs seamlessly with the Mobvoi Health app, giving you a complete picture of your health metrics.
The redesigned interface featuring a rotating crown with haptic feedback makes navigation intuitive, while the 1.43-inch OLED display offers excellent visibility in all conditions. Built for durability, the TicWatch Pro 5 boasts 5ATM water resistance for swimming and showering without worry.
Best for active Android users seeking comprehensive health tracking with exceptional battery life
Pros:
- Impressive 80-hour battery life with fast charging (0-65% in 30 minutes)
- Continuous SpO2 and heart rate monitoring, even in low power mode
- Advanced fitness features including VO2 MAX and Recovery Time metrics
- Durable 5ATM water-resistant design
- Sleek interface with intuitive rotating crown navigation
Cons:
- Not compatible with iOS devices
- Limited selection of free watch faces
- Larger size might not suit smaller wrists
- Premium price point compared to basic fitness trackers
- Some users report occasional software bugs requiring updates
SAMSUNG Galaxy Watch 7
Samsung’s Galaxy Watch 7 40mm Bluetooth AI Smartwatch stands out with its advanced health monitoring capabilities, making it ideal for fitness enthusiasts who prioritize extensive wellness tracking.
The 40mm AMOLED display with premium stainless-steel frame offers both style and functionality. You’ll appreciate its AI-powered Energy Score feature that optimizes your wellness by calculating energy expenditure and recovery. It tracks heart rate with improved accuracy, monitors sleep cycles, and can even detect moderate to severe sleep apnea.
With a battery lasting up to 3+ days (without Always On Display), built-in GPS, and seamless integration with both Android and iOS devices, it’s a thorough health companion.
Best For: Health-conscious individuals and fitness enthusiasts who want comprehensive wellness tracking with AI features in a stylish, premium smartwatch.
Pros:
- Advanced health monitoring with AI-powered Energy Score and sleep apnea detection
- Premium design with 40mm AMOLED display and stainless-steel frame
- Impressive battery life of 3+ days without Always On Display
Cons:
- Heart rate tracking, while improved, is not intended for medical use
- Limited compatibility with some third-party apps due to Tizen operating system
- Premium features come with a higher price point compared to basic fitness trackers
Garmin Fenix 8
Designed for serious athletes and outdoor enthusiasts who demand premium health metrics, the PlayBetter Garmin Fenix 8 AMOLED Sapphire GPS Smartwatch Bundle delivers exceptional SPO2 monitoring alongside extensive fitness tracking.
The 1.4″ touchscreen display with sapphire lens offers superior durability while maintaining crystal-clear visibility. You’ll appreciate the impressive 30-day battery life and 40-meter water resistance during extended adventures. At just 102 grams, this titanium-bezel powerhouse won’t weigh you down.
Beyond oxygen monitoring, you’ll benefit from advanced performance metrics, TopoActive maps, and smart features including built-in speaker, music storage, and Garmin Pay—all backed by stellar 4.8/5 user ratings.
Best For: Serious outdoor enthusiasts and athletes who prioritize premium health tracking, durability, and battery life in a feature-rich GPS smartwatch that can withstand extreme conditions.
Pros:
- Exceptional durability with titanium bezel, sapphire lens, and 40-meter water resistance making it suitable for diving and rugged adventures
- Impressive 30-day battery life eliminates frequent charging during extended trips or training sessions
- Comprehensive tracking features including advanced performance metrics, TopoActive maps, and multiple sport modes with built-in speaker and Garmin Pay
Cons:
- Premium price point makes it a significant investment compared to entry-level fitness trackers
- At 102 grams (3.6 ounces), it may feel heavier than lightweight smartwatches for some users
- Learning curve to master all features and customization options due to the extensive functionality
Fitbit Sense 2
Featuring an advanced SpO2 monitoring system, the Fitbit Sense 2 stands out as an ideal choice for health-conscious individuals who want extensive wellness tracking. You’ll benefit from ECG capabilities, stress management tools, and comprehensive sleep analysis with your daily Sleep Score.
The watch offers over 40 exercise modes, built-in GPS, and water resistance up to 50 meters. While the 6+ day battery life impresses many users, it can deplete faster when using multiple features simultaneously.
Some users report occasional touch interface issues and heart rate monitoring inaccuracies during intense workouts, but regular software updates continue to improve functionality.
Best For: Health-conscious individuals seeking comprehensive health monitoring with features like ECG, stress management, and sleep tracking in a smartwatch with extensive fitness capabilities.
Pros:
- Extensive health monitoring features including ECG app, SpO2 tracking, and stress management tools that provide valuable insights into overall wellbeing
- Impressive battery life of over 6 days (when not using GPS continuously) with quick charge capabilities providing 24 hours of use after just 12 minutes
- Versatile fitness tracking with over 40 exercise modes, built-in GPS, and water resistance up to 50 meters for diverse workout options
Cons:
- Battery life depletes significantly faster when multiple features like GPS and advanced health tracking are used simultaneously
- Some users report touch interface issues and heart rate monitoring inaccuracies, particularly during intense workouts
- Premium membership required for full feature access after the initial 6-month trial period, limiting long-term value without subscription
Google Pixel Watch 3 Smartwatch
The Google Pixel Watch 3 elevates fitness tracking with its extensive health monitoring system in a sleek 45mm Matte Black design. Its 40% larger Actua display delivers twice the brightness of previous models, making outdoor visibility exceptional.
You’ll benefit from advanced running features with real-time guidance and form tracking, while the readiness score helps optimize your workout schedule based on sleep quality and heart rate variability. The seamless Fitbit integration enhances your fitness journey through thorough insights.
Though its 24-hour battery life requires daily charging, the fast USB-C charging minimizes downtime. Compatible with Android 10.0+ devices, it’s perfect for managing notifications while tracking your health metrics.
Best For: Fitness-minded Android users who want advanced health tracking capabilities in a stylish smartwatch with seamless Google ecosystem integration.
Pros:
- 45mm Actua display offers 40% more screen space and twice the brightness of previous models, making it easy to read outdoors
- Comprehensive fitness tracking with advanced running features, form tracking, and readiness score based on sleep and heart rate variability
- Seamless integration with Google ecosystem including Pixel phones, Pixel Buds, and Nest devices
Cons:
- 24-hour battery life requires daily charging, which may be inconvenient for some users
- Only compatible with Android phones running Android 10.0 or newer, excluding iPhone users
- Higher price point compared to some competitor smartwatches with similar features
Withings ScanWatch 2 Hybrid Smart Watch
Withings ScanWatch 2 stands out as an ideal choice for health-conscious individuals seeking thorough monitoring without sacrificing style. This hybrid smartwatch offers medical-grade ECG, 24/7 heart rate monitoring, and on-demand SpO2 measurements in an elegant stainless steel package.
You’ll appreciate its impressive 30-day battery life, though real-world use typically delivers 2-3 weeks. The minimalist OLED display provides essential information without overwhelming notifications. While it lacks built-in GPS, it compensates with extensive sleep tracking, temperature monitoring, and respiratory insights.
The ScanWatch 2 successfully balances traditional watch aesthetics with modern health technology at a reasonable price point.
Best For: Health-conscious individuals who want comprehensive health monitoring features in a stylish, traditional-looking watch with minimal tech distractions.
Pros:
- Impressive battery life up to 30 days (though typically 2-3 weeks with regular use)
- Comprehensive health tracking features including medical-grade ECG, SpO2 monitoring, and body temperature tracking
- Elegant stainless steel design that resembles a traditional watch rather than a typical smartwatch
Cons:
- Lacks built-in GPS, requiring connection to a phone for activity tracking
- Limited activity tracking options compared to dedicated fitness trackers
- Mixed customer feedback regarding tracking accuracy and customer service experiences
Amazfit Balance Smart Watch
For wellness enthusiasts seeking extensive health data in a stylish package, the Amazfit Balance Smart Watch 46mm delivers exceptional value. This versatile tracker monitors everything from body composition to blood-oxygen levels while providing thorough sleep insights.
You’ll appreciate the impressive battery life—up to 14 days of normal use or 25 days in saver mode. The dual-band GPS accurately tracks your workouts across 150+ sports modes, with seamless Strava integration.
The vibrant display and Zepp OS provide a smooth user experience with smart features like Alexa integration and Bluetooth calling. It’s comfortable enough for 24/7 wear while maintaining a premium look.
Best For: Health-conscious individuals who want comprehensive fitness tracking, sleep analysis, and smartwatch features in a stylish, long-lasting device that works with both Android and iPhone.
Pros:
- Exceptional battery life of up to 14 days with normal use, reducing the need for frequent charging
- Comprehensive health monitoring with body composition analysis, heart rate tracking, and blood oxygen measurement
- Versatile functionality with built-in Alexa, dual-band GPS, and support for over 150 sports modes
Cons:
- Some users report concerns about sleep tracking accuracy compared to specialized devices
- Requires keeping the Zepp app running in the background for consistent notifications
- Limited app ecosystem compared to more established smartwatch platforms
Huawei Watch GT 5 Pro
Designed for demanding fitness enthusiasts who prioritize both performance and style, the Huawei Watch GT 5 Pro 46 mm offers exceptional health tracking capabilities with its SPO2 monitoring system. The aerospace-grade titanium construction with sharp-edged design gives it a premium feel while remaining practical for active lifestyles.
You’ll appreciate the impressive battery life—up to 14 days maximum or 9 days with typical use. Beyond oxygen monitoring, this smartwatch delivers thorough health metrics through leading-edge TruSense technology, even evaluating your mental wellbeing in real-time. The wrist-based navigation with real-time maps makes it perfect for runners, cyclists, and hikers.
Best For: Fitness enthusiasts and outdoor adventurers who want a premium smartwatch with exceptional battery life, comprehensive health tracking, and navigation features compatible with both iOS and Android.
Pros:
- Impressive 9-14 day battery life significantly outperforms most competitors in the smartwatch market
- Aerospace-grade titanium construction provides durability while maintaining a premium aesthetic
- Comprehensive health tracking including SPO2 monitoring and unique mental wellbeing assessment
Cons:
- Sharp-edged design may not appeal to those who prefer more rounded, traditional watch aesthetics
- Premium materials likely contribute to a higher price point compared to basic fitness trackers
- Map-based navigation features may have limited utility for casual users who don’t regularly hike or run outdoors
POLAR Vantage V3
The POLAR Vantage V3 stands out as a premium option for serious athletes who need extensive training metrics including SPO2 monitoring. Its AMOLED touchscreen and dual-frequency GPS with downloadable maps elevate your training experience.
You’ll appreciate the impressive battery life—up to 140 hours in training mode or 8 days with regular use. With over 150 sport modes, it’s versatile enough for any fitness enthusiast.
While users praise its comfortable design and thorough metrics, some report inconsistent heart rate readings and charging issues. Released in April 2024, this watch offers a solid balance of performance and features despite a few limitations.
Best For: Serious athletes and outdoor adventurers who need comprehensive training metrics, advanced GPS navigation, and long battery life in a premium sports watch.
Pros:
- Impressive battery life lasting up to 140 hours in training mode or 8 days with regular use
- High-quality AMOLED touchscreen with dual-frequency GPS and downloadable offline maps
- Extensive training capabilities with over 150 sport modes and comprehensive performance metrics
Cons:
- Some users report inconsistent heart rate monitoring accuracy
- Charging issues with the original cord reported by multiple users
- Higher price point compared to similar fitness trackers with fewer navigation features
COROS VERTIX 2S
Adventure enthusiasts seeking unmatched battery life will find their match in the COROS VERTIX 2S GPS Watch. With an impressive 40-day battery that delivers 118 hours of full GPS tracking, you’ll worry less about charging and more about exploring.
The sapphire screen and titanium bezel withstand the harshest conditions, while tactile buttons and a digital dial facilitate easy operation even with gloves. You’ll appreciate the thorough navigation features, including global offline maps and route planning.
Though ranked #157 in Running GPS Units, the VERTIX 2S outshines competitors with its durability and longevity, despite occasional software bugs and syncing issues.
Best For: Long-distance adventurers, ultra-marathoners, and outdoor enthusiasts who need exceptional battery life and reliable navigation in remote areas.
Pros:
- Exceptional 40-day battery life with 118 hours of GPS tracking makes it ideal for multi-day adventures without charging
- Premium durability with sapphire screen and titanium bezel designed to withstand extreme conditions
- Comprehensive navigation features including global offline maps and intuitive route planning capabilities
Cons:
- Some users report software bugs and syncing issues with certain external devices
- Higher price point compared to many competing GPS watches on the market
- Learning curve for new users to master all the advanced features and customization options
How SpO2 Monitoring Works in These Smartwatches
Here’s how oxygen saturation (SpO2) monitoring works in each of these top smartwatches:
TicWatch Pro 5 Smartwatch
The TicWatch Pro 5 implements SpO2 monitoring through its advanced optical heart rate sensor array located on the underside of the watch.
The sensor array contains red and infrared LEDs that shine light onto your wrist. As blood flows through your vessels, it absorbs different amounts of light depending on how saturated it is with oxygen. Oxygenated blood absorbs more infrared light and lets more red light pass through, while deoxygenated blood absorbs more red light and lets more infrared light pass through.
Samsung Galaxy Watch 7
The BioActive Sensor combines multiple health sensors including red and infrared LEDs for SpO2. Samsung’s system takes measurements by analyzing how the different wavelengths of light are absorbed as they pass through your fingertip or wrist. The watch offers continuous monitoring during sleep plus on-demand readings with trend analysis in Samsung Health.
Garmin Fenix 8
Utilizes Pulse Ox technology with red and infrared LEDs to measure light absorption through blood vessels. Uniquely adjusts readings based on altitude for hikers and climbers. Offers spot-check measurements, all-day tracking, or sleep-only monitoring with adjustable frequency to balance accuracy with battery life.
Fitbit Sense 2
Multi-path optical heart rate sensor includes red and infrared LEDs for SpO2 detection. Primarily measures during sleep automatically, displaying your “Estimated Oxygen Variation” with graphs showing fluctuations rather than specific percentages. Data integrates with Fitbit’s sleep scoring system to detect potential breathing disturbances.
Google Pixel Watch 3
Leverages Fitbit’s technology with an improved sensor array of red and infrared LEDs. Measures SpO2 primarily during sleep, presenting data as both percentage values and variation graphs. Algorithm designed to minimize false readings from movement or environmental factors.
Withings ScanWatch 2
Features medical-grade SpO2 monitoring (clinically validated) through a dedicated sensor cluster. Measurement is primarily on-demand through a 30-second test sequence. The watch guides proper positioning for accurate readings and can notify of significant overnight drops in oxygen levels.
Amazfit GTR 5
Uses BioTracker PPG optical sensor with multiple light wavelengths. Provides both on-demand and automatic overnight SpO2 monitoring. Analysis algorithms detect patterns of breathing disturbances and low oxygen events during sleep with consolidated reporting in the Zepp app.
Huawei Watch GT 5 Pro
TruSeen 5.5 technology uses a combination of optical paths with AI algorithms to filter motion artifacts. Offers continuous SpO2 monitoring with minimal battery impact. Can alert users when levels fall below customizable thresholds, with detailed analysis of overnight variations.
Polar Vantage V3
Advanced optical sensor optimized for athletes with special algorithms that account for circulation changes during intense exercise. Provides spot-check measurements plus automatic overnight tracking, with analysis focused on recovery optimization and altitude acclimatization for training purposes.
Coros Vertix 2
Designed for mountaineers and extreme athletes with specialized pulse oximeter hardware that functions reliably at high altitudes. Offers on-demand measurements plus optional continuous monitoring during sleep and activities. Battery-efficient implementation allows monitoring without significant power drain.
All these devices use similar principles of light absorption measurement, but differ in their frequency of readings, data presentation, specialized algorithms, and how they integrate SpO2 data with other health metrics.
Factors to Consider When Choosing 10 Smartwatches With An Oxygen Sensor (SPO2) In 2025
When choosing a smartwatch with SPO2 functionality in 2025, you’ll need to evaluate several critical factors that impact performance and user experience. Consider the sensor accuracy ratings (which can vary by up to 4% between models), battery life (ranging from 18 hours to 40+ days), display quality, durability standards, and compatible app ecosystems. Your specific health monitoring needs, lifestyle demands, and budget constraints will ultimately determine which combination of these features matters most for your ideal oxygen-sensing wearable.
Sensor Accuracy Ratings
Understanding sensor accuracy should be your top priority when evaluating smartwatches with SpO2 functionality in 2025. Top-tier devices offer 95% or higher accuracy ratings in clinical settings, while consumer models may show more variation in their readings.
When researching options, you’ll want to check how each watch performs across different environments. Altitude, temperature, and your movement can all affect measurement reliability. The best smartwatches now combine multiple sensors with sophisticated algorithms that account for variables like skin tone and ambient light interference.
Don’t just trust manufacturer claims—look for third-party testing results and user reviews that verify real-world performance. Watches that maintain accuracy during daily activities will provide the most valuable health insights, especially if you’re tracking oxygen levels for fitness or wellness purposes.
Battery Life Considerations
Beyond sensor accuracy, battery performance represents a major deciding factor for any SpO2-equipped smartwatch purchase in 2025. Continuous oxygen monitoring greatly impacts battery longevity, with some models requiring daily charging while others can last up to 30 days between charges.
You’ll need to assess your usage patterns honestly. If you’re planning extended outdoor activities with GPS tracking and constant health monitoring, prioritize watches with robust battery capacity. Many manufacturers now offer quick-charging capabilities, providing several hours of use after just 30 minutes connected to power.
Consider enabling battery-saving modes and selectively using power-intensive features when necessary. For continuous health tracking, especially overnight SpO2 monitoring, look for models specifically designed to balance power consumption with reliable data collection throughout your monitoring sessions.
Display Quality Metrics
Although most buyers primarily focus on health features, the display quality of your SpO2 smartwatch deserves careful consideration since it directly impacts your ability to read essential health data in various conditions.
Look for high resolution displays (measured in PPI) that provide sharp text and clear visuals when checking your oxygen readings. Brightness levels of at least 1000 nits guarantee you’ll be able to view your health metrics even in bright sunlight.
Consider the display technology too—AMOLED screens offer vibrant colors and true blacks that make health data pop, while LCDs might extend battery life. If you need constant access to your SpO2 readings, evaluate models with Always-On Display capabilities, but remember this feature will affect how frequently you’ll need to recharge your device.
Durability & Water Resistance
Three critical durability factors will determine whether your SpO2 smartwatch survives your active lifestyle: construction materials, water resistance ratings, and impact protection.
Premium materials like titanium and stainless steel offer superior scratch resistance compared to standard aluminum or plastic. For outdoor enthusiasts, look for models with sapphire crystal displays rather than standard glass.
Water resistance is essential—IPX7 ratings work for brief immersion, but serious swimmers should demand 50-meter ratings or better. Pay attention to well-designed seals and leakproof buttons that prevent water ingress during aquatic activities.
Finally, consider the watch’s weight and comfort. Lighter designs reduce fatigue during extended wear and minimize damage risk from accidental drops or bumps while maintaining the accuracy of your crucial SpO2 readings.
App Ecosystem Support
While hardware specifications determine a smartwatch’s baseline capabilities, the app ecosystem ultimately defines how effectively you’ll leverage its SpO2 monitoring features. Look for watches that integrate seamlessly with popular health apps, giving you thorough insights into your oxygen saturation alongside other crucial metrics.
The best smartwatches offer compatibility with third-party applications that can customize how you track, analyze, and respond to SpO2 data. These apps often provide deeper analysis and personalized recommendations based on your oxygen readings. Additionally, a vibrant app marketplace guarantees you’ll benefit from regular updates and improvements to SpO2 tracking algorithms.
When evaluating smartwatches, consider not just the current app selection but also the manufacturer’s track record for supporting developers and releasing API updates that enhance health monitoring capabilities.
Continuous vs. On-Demand Monitoring
When choosing a smartwatch with SpO2 functionality, you’ll face a critical decision between continuous and on-demand monitoring systems. Continuous monitoring provides real-time blood oxygen data, making it ideal for sleep apnea detection or tracking respiratory conditions throughout the day. This thorough approach reveals patterns in your oxygen levels during various activities and sleep cycles.
However, this constant tracking comes at a cost—reduced battery life. If battery longevity matters more to you, on-demand monitoring offers a practical alternative. You’ll manually check SpO2 levels only when needed, such as during workouts or when experiencing symptoms.
Your decision should balance your health monitoring needs against battery considerations. Those requiring consistent health insights might prioritize continuous tracking, while occasional users may find on-demand monitoring sufficient.
Smartwatches Continuous vs. On-Demand Monitoring SpO2 Monitoring Comparison
Data Integration Capabilities
Effective data integration stands as a cornerstone feature in modern SpO2-equipped smartwatches, transforming isolated measurements into actionable health insights. When evaluating your next purchase, prioritize devices that seamlessly sync with your preferred fitness and health apps.
The most valuable smartwatches aggregate data from multiple sensors—combining SpO2 readings with heart rate, sleep quality, and activity metrics to provide a thorough health overview. Look for models supporting robust third-party app integration, as these can deliver personalized insights by connecting oxygen saturation data with your specific lifestyle choices.
Cloud connectivity is equally important, allowing you to access your health data across devices and easily share trends with healthcare providers. Advanced analytical features that track SpO2 patterns over time will help you make more informed decisions about your wellness routine.
Frequently Asked Questions
How Accurate Are SPO2 Readings in Smartwatches Compared to Medical Devices?
Smartwatch SPO2 readings aren’t as accurate as medical pulse oximeters. You’ll notice they’re typically 2-4% less accurate and shouldn’t replace medical devices. They’re useful for tracking trends rather than diagnostic purposes.
Can Smartwatch Oxygen Sensors Detect Sleep Apnea?
Smartwatch oxygen sensors can help identify potential sleep apnea symptoms by tracking SpO2 drops during sleep, but they’re not FDA-approved for diagnosis. You’ll still need a proper medical sleep study for confirmation.
Do SPO2 Sensors Drain Battery Life Significantly?
Yes, SPO2 sensors do drain battery life considerably. You’ll notice faster depletion when continuous monitoring is enabled. Most watches offer on-demand or sleep-only measurements to help you conserve power while still tracking oxygen levels.
Are Oxygen Readings Affected by Tattoos on the Wrist?
Yes, tattoos can interfere with your SpO2 readings. The dark ink blocks light sensors from properly measuring oxygen levels through your skin. You’ll get more accurate results by wearing your device on a non-tattooed area.
Can Smartwatch SPO2 Data Be Shared With Healthcare Providers?
Yes, you can share your smartwatch SpO2 data with healthcare providers. Most devices let you export readings through health apps. Some even offer direct healthcare integration, though these aren’t replacements for medical-grade equipment.
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