The best waterproof heart rate monitors help you track training intensity without worrying about sweat, rain, or pool sessions. This roundup compares chest straps, optical armbands, watches, and sensor-equipped trackers for different workout styles and budgets.
We focus on water resistance, measurement consistency, connectivity, battery life, comfort, and compatibility so you can choose a monitor that fits the way you train.
Best 10 Waterproof Heart Rate Monitors Picks for 2026
Most Accurate Pick
- Highly accurate heart rate measurement
- Bluetooth, ANT+, and 5 kHz connectivity
- Fully waterproof with up to 400 hours of battery life
Best For: Swimmers and serious trainees needing flexible connectivity
Best for Garmin Training Data
- Real-time heart rate and HRV data
- Records watch-free workouts and swim activity
- Rechargeable battery lasts up to two months
Best For: Garmin users and data-driven runners
Best Long-Battery Value
- IP67 waterproof design
- ANT+ and Bluetooth compatibility
- Up to 800 hours from a replaceable CR2032 battery
Best For: Land-based training and long-term battery convenience
Most Comfortable Armband
- Soft, breathable armband design
- Pairs with up to three Bluetooth devices
- Wear detection and up to 38 hours of operation
Best For: Bluetooth users who prefer an armband over a chest strap
Reliable Chest-Strap Pick
- High-accuracy chest-strap tracking
- Compatible with equipment and smartphone apps
- Up to 400 hours of battery life
Best For: App-connected everyday heart-rate tracking
Waterproof Training Value
- IP67 waterproof HRM sensor
- Bluetooth and ANT+ connectivity
- Up to 300 hours of battery life
Best For: Wet-weather workouts and connected training
All-Day Wrist Tracker
- IP68 waterproof smartwatch design
- 24/7 heart-rate and sleep tracking
- Up to seven days of normal-use battery
Best For: Everyday wellness and activity tracking
Best Overall
- Optical armband with swimming goggle clip
- ANT+ and dual Bluetooth connectivity
- Up to 30 hours of battery life
Best For: Flexible training and swimming use
Best With Watch
- 5ATM waterproof digital watch and strap
- Real-time heart rate and calorie display
- Up to 365 days with replaceable batteries
Best For: Phone-free workout monitoring
Best for HRV Insights
- IP68-rated optical armband
- ANT+ and Bluetooth Smart pairing
- HRV mode with RR interval data
Best For: App-connected training and HRV tracking
Most Accurate Pick – Polar H10
The Polar H10 is a strong choice among waterproof heart rate monitors for athletes who prioritize measurement accuracy and broad device compatibility. Its fully waterproof sensor supports Bluetooth, ANT+, and 5 kHz connections, while the included battery is rated for up to 400 hours.
Best For: Swimmers, serious trainees, and users who need flexible connectivity.
Pros:
- Recognized for highly accurate heart rate measurement.
- Supports Bluetooth, ANT+, and 5 kHz connections, including simultaneous connections.
- Fully waterproof and includes internal memory for multiple hours of data.
- Comfort-focused strap has improved electrodes, a buckle, and silicone dots.
Cons:
- Uses a replaceable CR2025 button-cell battery rather than a rechargeable battery.
- The listed M-XXL size may not suit every user without checking fit.
The Polar H10 is a versatile chest strap for users who want dependable accuracy, extensive compatibility, and waterproof performance in one established sensor.
Best for Garmin Training Data – Garmin HRM 600
The Garmin HRM 600 is a data-focused option among waterproof heart rate monitors, sending real-time heart rate and HRV information to compatible Garmin devices, fitness equipment, and apps. It can also record workouts when a watch cannot be worn and store swim data for later syncing.
Best For: Garmin users, runners tracking form, and athletes who train in the water or without a watch.
Pros:
- Provides real-time heart rate and HRV data to compatible devices.
- Tracks running dynamics such as stride length and vertical oscillation with a compatible smartwatch.
- Records workouts without a watch and syncs data to Garmin Connect.
- Machine-washable strap and rechargeable battery offer practical everyday use.
Cons:
- Advanced running metrics require a compatible smartwatch.
- Battery life is up to two months, shorter than some replaceable-battery alternatives.
- Compatibility is centered on supported Garmin devices, apps, and equipment.
Choose the HRM 600 if detailed Garmin ecosystem data matters more than simple heart rate broadcasting. Its swim recording and watch-free workout features add useful flexibility.
Best Long-Battery Value – GEOID HS500
The GEOID HS500 is a practical waterproof heart rate monitor for users who want long battery life and broad ANT+/Bluetooth support. Its IP67-rated sensor works with phones, watches, bike computers, treadmills, and several training apps, while the replaceable CR2032 battery is rated for 800 hours.
Best For: Runners, cyclists, and indoor-training users seeking an affordable, long-running chest strap.
Pros:
- IP67 waterproof rating supports demanding workouts.
- Offers both ANT+ and Bluetooth connectivity.
- 800-hour battery life with a replaceable CR2032 battery.
- LED indicator confirms heart rate and connection status.
Cons:
- Swimming is not recommended despite the IP67 rating.
- Bluetooth should be connected through the training app rather than directly through the phone’s Bluetooth settings.
- Provides fewer ecosystem-specific training features than more advanced models.
The HS500 stands out for straightforward connectivity, low-energy operation, and unusually long battery life. It is best suited to land-based training rather than swimming.
Most Comfortable Armband – COROS Heart Rate Monitor
The COROS Heart Rate Monitor offers an alternative to chest-strap waterproof heart rate monitors with a soft, breathable armband designed for sports and workouts. It connects by Bluetooth only, can pair with up to three devices, and automatically powers on when worn.
Best For: Athletes who prefer an armband’s comfort and use Bluetooth-compatible watches, apps, or indoor trainers.
Pros:
- Soft, breathable armband is designed for comfortable wear.
- Can connect simultaneously to up to three Bluetooth devices.
- Wear detection automatically powers the monitor on and off.
- Rechargeable battery provides up to 38 hours of operation or 80 days of standby.
Cons:
- Bluetooth only; it is not compatible with ANT+.
- Designed for sports and activities rather than daily heart rate tracking.
- The large band fits 9.4 to 16.9-inch arms, so fit should be checked carefully.
The COROS monitor is a comfortable pick for users who dislike chest straps and already rely on Bluetooth devices. Its automatic wear detection and multi-device pairing make it convenient for routine workouts.
Reliable Chest-Strap Pick – Polar H9 Heart Rate Sensor
Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap, XXS-S
Check Price On AmazonFor shoppers comparing waterproof heart rate monitors, the Polar H9 is a straightforward chest-strap sensor built around accurate heart-rate tracking and broad compatibility. It connects with compatible equipment and popular smartphone apps, making it useful for everyday workouts without adding a smartwatch display.
Best For: Users who want a trusted, app-friendly chest-strap heart rate sensor.
Pros:
- Designed for high-accuracy heart-rate tracking.
- Works with compatible equipment, smartphones, tablets, laptops, and desktops.
- Offers Bluetooth and other connection possibilities for popular apps.
- CR2025 battery is included and rated for up to 400 hours.
Cons:
- It is a sensor and soft strap rather than a standalone watch with a display.
- The supplied notes do not specify a waterproof rating.
- Fit is size-dependent, with the listed strap ranges covering XS-S and M-XXL.
The Polar H9 is a sensible choice when dependable heart-rate data and ecosystem compatibility matter more than on-wrist features. Confirm the strap size and your intended device connections before buying.
Waterproof Training Value – COOSPO H808S Chest Strap
The COOSPO H808S is one of the more directly relevant waterproof heart rate monitors for training because its HRM sensor carries an IP67 waterproof rating. It combines real-time readings with Bluetooth and ANT+ connectivity for sports watches, bike computers, phones, and supported fitness apps.
Best For: Athletes who need an IP67 chest strap with dual-mode wireless connectivity.
Pros:
- IP67 waterproof HRM design for workouts in wet conditions.
- Claims ±1 BPM accuracy for real-time exercise heart-rate monitoring.
- Bluetooth 4.0 and ANT+ support multiple compatible devices and apps.
- Replaceable CR2032 battery is rated for up to 300 hours.
Cons:
- The electrode zones should be moistened before use.
- The manufacturer recommends replacing the strap after six months or 300 washes.
- Users must connect through the app rather than the phone’s standard Bluetooth menu.
With its stated waterproof rating, dual wireless modes, and broad app compatibility, the H808S is a practical training-focused option. Follow the connection and strap-care instructions to get the most consistent results.
All-Day Wrist Tracker – MorePro Fitness Tracker
Unlike chest-strap waterproof heart rate monitors, the MorePro Fitness Tracker is a wrist-worn smartwatch-style option with 24/7 heart-rate tracking and an IP68 waterproof design. It adds activity, sleep, blood oxygen, notification, and lifestyle features for users who want broader daily tracking in one device.
Best For: People seeking an IP68 fitness watch with heart-rate and everyday wellness features.
Pros:
- IP68 waterproof design handles sweat, rain, and hand-washing.
- Provides 24/7 heart-rate monitoring plus on-demand blood oxygen checks.
- Includes 120+ sport modes, sleep tracking, steps, distance, and calories.
- Battery lasts up to seven days with normal use or 15 days on standby.
Cons:
- The product is not intended for medical use.
- It requires Android 7.0+ or iOS 13.0+ and is not compatible with PCs or tablets.
- Wrist-based tracking may not suit shoppers specifically seeking a dedicated chest strap.
The MorePro tracker is best viewed as an all-purpose wearable rather than a specialized training sensor. Its IP68 rating, long battery claim, and broad feature set make it appealing for continuous everyday use, while the health readings should be treated as general wellness information.
Best Overall – Polar Verity Sense
The Polar Verity Sense is a versatile choice for shoppers comparing waterproof heart rate monitors, especially if you prefer an optical armband instead of a chest strap. It supports ANT+ and two simultaneous Bluetooth connections, while its compact design works for workouts and swimming.
Best For: Athletes who want a lightweight, flexible monitor for app-based training, connected devices, or swimming.
Pros:
- Comfortable upper-arm, forearm, or goggle-clip placement keeps the wrist free.
- Supports live broadcasting through ANT+ and dual Bluetooth connections.
- Offers up to 30 hours of battery life and includes a swimming goggle clip.
- Can record sessions for later transfer to a phone.
Cons:
- Battery is not replaceable.
- Requires a compatible connected device or app for live display.
The Verity Sense stands out for its placement flexibility and broad connectivity. It is a strong fit when comfort, swimming support, and app compatibility matter more than having a built-in display.
Best With Watch – T037 Chest Strap HRM
The T037 combines a chest-strap heart rate sensor with a dedicated digital watch, making it a practical option among waterproof heart rate monitors for people who want workout data without relying on a phone or smartwatch. Its 5ATM waterproof rating suits wet outdoor conditions.
Best For: Fitness enthusiasts who want a simple watch-based display, heart-rate alerts, and long battery life.
Pros:
- Displays real-time heart rate and estimated calories on the included watch.
- 5ATM waterproof design supports outdoor workouts in wet conditions.
- Personalized heart-rate safety zones provide audible over-range reminders.
- Replaceable CR2032 batteries provide up to 365 days of use.
Cons:
- Uses a chest strap, which may feel less convenient than an armband.
- The watch and sensor require separate battery replacement.
- Initial startup requires pressing all four side buttons simultaneously.
This set prioritizes simplicity and independence from phones, with a readable display, stopwatch, and safety alerts. Choose it if long battery life and an included watch are more important than app-focused connectivity.
Best for HRV Insights – Scosche Rhythm+ 2.0
The Scosche Rhythm+ 2.0 is a lightweight optical armband for shoppers seeking waterproof heart rate monitors that pair with training apps and sports equipment. Its IP68 rating helps it handle sweat and rain, while HRV mode adds access to RR interval data.
Best For: Runners, cyclists, and gym users who want flexible ANT+/Bluetooth pairing and HRV-oriented training data.
Pros:
- IP68 waterproof construction is designed for sweat, rain, and demanding workouts.
- Pairs with compatible devices through both Bluetooth Smart and ANT+.
- HRV mode captures RR interval data for supported training and wellness apps.
- Adjustable strap can be worn on the forearm, bicep, or tricep.
Cons:
- Battery life is limited to up to 24 hours.
- HRV features depend on compatible apps and devices.
- It does not include a standalone display.
The Rhythm+ 2.0 is a good middle ground between chest straps and wrist-based devices, offering comfortable placement and broad connectivity. Its main appeal is the combination of IP68 durability and optional HRV data.
How We Picked These Waterproof Heart Rate Monitors
We compared the 10 selected models by looking at sensor design, water-resistance ratings, wireless connectivity, battery life, comfort, and compatibility with phones, watches, cycling computers, and fitness apps. Chest straps generally provide fast, consistent readings during intervals and strength training, while optical armbands and watches can be more comfortable for everyday use.
We also considered practical details such as ANT+ and Bluetooth support, auto-wear detection, replaceable or rechargeable batteries, and whether the device is designed for swimming or only protected against sweat and rain. Water-resistance claims vary, so check the manufacturer’s rating and usage limits before taking any monitor into a pool.
Quick Comparison
| Monitor type | Best suited for | Main advantage | What to check |
|---|---|---|---|
| Chest strap | Serious training and intervals | Consistent readings close to the heart | Fit, sensor contact, and battery type |
| Optical armband | Comfort-focused workouts | Less restrictive than a chest strap | Arm fit and motion-related accuracy |
| Fitness watch or tracker | Everyday activity and wellness | Heart rate plus health and activity features | Water rating and workout-data depth |
Key Buying Factors for Waterproof Heart Rate Monitors
Water Resistance
Look for a clearly stated IP rating or ATM rating. IP67 can protect against temporary immersion, while a 5 ATM rating is typically more appropriate for swimming, but neither rating should be interpreted beyond the manufacturer’s instructions. Avoid pressing buttons underwater unless the product specifically allows it.
Sensor Style and Comfort
Chest straps are often the strongest choice for accurate, responsive training data. Optical armbands avoid the tight band around your torso and may be preferable for long sessions. Watches are easiest for all-day wear but can be less responsive during rapid-intensity changes.
Connectivity and Compatibility
ANT+ is useful for pairing with compatible bike computers, watches, and gym equipment. Bluetooth is important for phones and many modern fitness apps. If you train with multiple devices, choose a model that supports simultaneous connections or the protocols you regularly use.
Battery Life and Maintenance
Long battery life reduces interruptions, especially for frequent training. Rechargeable models are convenient, while replaceable-cell straps can remain useful for years with inexpensive battery changes. Rinse salt, chlorine, and sweat from water-resistant sensors after use and allow fabric straps to dry fully.
Who Should Buy Which Waterproof Heart Rate Monitors?
Choose a chest strap such as the Polar H10, Polar H9, Garmin HRM 600, HS500, or COOSPO H808S if workout accuracy and broad device compatibility matter most. These are especially suitable for runners, cyclists, interval trainees, and athletes who want dependable live heart-rate data.
Choose the COROS, Polar Verity Sense, or Scosche Rhythm armband if you want a less restrictive fit while retaining ANT+ or Bluetooth connectivity. An armband can be a practical middle ground between a chest strap and a smartwatch.
Choose the MorePro tracker or the 5ATM heart-rate watch if you want a wearable that combines heart-rate monitoring with steps, sleep, calories, or basic daily tracking. These options make the most sense for general fitness users rather than athletes who need the fastest possible response and highest training-data precision.