The best waterproof heart rate monitors help you track effort through sweat, rain, pool sessions, and demanding workouts without relying only on wrist-based estimates.
This roundup compares 10 chest straps and armbands, including models with Bluetooth, ANT+, long battery life, optical sensing, and companion-app compatibility.
Best 10 Waterproof Heart Rate Monitors Picks for 2026
Best Overall
- Highly regarded measurement accuracy
- ANT+, Bluetooth, and 5 kHz connectivity
- Fully waterproof with internal memory
Best For: Athletes prioritizing accuracy and broad compatibility
Best for Garmin Athletes
- Real-time heart rate and HRV data
- Advanced running dynamics support
- Records workouts and swim data
Best For: Garmin users seeking detailed training metrics
Best Battery Life
GEOID HS500 Heart Rate Monitor
- Up to 800 hours of battery life
- IP67 waterproof protection
- ANT+ and Bluetooth compatibility
Best For: Frequent trainers wanting minimal battery maintenance
Best for Simplicity
- Real-time heart rate and HRV tracking
- 3 ATM water rating
- Up to one year of replaceable-battery life
Best For: Garmin users wanting simple, durable tracking
Best Bluetooth Armband
- Soft, breathable armband design
- Pairs with up to three Bluetooth devices
- 38 hours of operation with wear detection
Best For: Comfort-focused sports and workout tracking
Best Waterproof Multi-Position Sensor
Myzone Switch Heart Rate Monitor
- Waterproof to 10 meters
- Wear it on the chest, wrist, or arm
- Bluetooth, ANT+, and 36-hour memory
Best For: Multisport training in varied conditions
Best Affordable Chest Strap
- High-accuracy chest-based tracking
- Works with compatible equipment and apps
- Up to 400 hours from a CR2025 battery
Best For: Everyday training and broad device compatibility
Best Long-Battery Chest Strap
- IP67 waterproof design
- Bluetooth and ANT+ connectivity
- Up to 300 hours per battery
Best For: Cyclists and runners wanting extended battery life
Best Waterproof Armband
- IP68 protection for sweat and rain
- Comfortable forearm, bicep, or tricep fit
- Supports HRV and RR interval data
Best For: Users preferring an optical armband over a chest strap
Best Rechargeable Training Armband
- IP67 sweat and water protection
- Rechargeable battery with 20+ hours
- Bluetooth and ANT+ support
Best For: Training users wanting a rechargeable optical armband
Best Overall – Polar H10 Heart Rate Monitor
The Polar H10 is a strong all-around choice among waterproof heart rate monitors, combining highly regarded measurement precision with broad ANT+, Bluetooth, and 5 kHz connectivity. Its internal memory and comfortable chest strap also make it practical for varied training setups.
Best For: Athletes who want highly accurate readings and flexible device compatibility.
Pros:
- Recognized for top-level heart rate measurement accuracy.
- Supports Bluetooth, ANT+, and 5 kHz connections, including simultaneous Bluetooth connections.
- Fully waterproof and includes internal memory for multiple hours of data.
- Battery life is rated at approximately 400 hours.
Cons:
- Requires a CR2025 button cell battery.
- Chest-strap design may not suit shoppers seeking a wrist-worn monitor.
The Polar H10 stands out when accuracy and connectivity flexibility matter most. It is especially well suited to structured training with compatible watches, phones, fitness equipment, or apps.
Best for Garmin Athletes – Garmin HRM 600
The Garmin HRM 600 is a data-focused option among waterproof heart rate monitors. It sends real-time heart rate and HRV data to compatible Garmin devices and can record workouts, running metrics, and swim data when a watch is not practical.
Best For: Garmin users who want advanced running dynamics, workout recording, and swim support.
Pros:
- Transmits real-time heart rate and HRV data to compatible devices and apps.
- Provides running dynamics such as stride length, vertical oscillation, and ground contact time balance with a compatible smartwatch.
- Records workouts and syncs data to Garmin Connect when a watch cannot be worn.
- Stores heart rate data during swim activities and offers up to two months of rechargeable-battery life.
Cons:
- Advanced running metrics require a compatible smartwatch.
- Its feature set is most useful within the Garmin ecosystem.
The HRM 600 is a compelling pick for data-driven athletes already using Garmin equipment. Its machine-washable strap and rechargeable battery add convenience to an extensive performance feature set.
Best Battery Life – GEOID HS500 Heart Rate Monitor
The GEOID HS500 offers an accessible, long-running option among waterproof heart rate monitors. Its IP67 rating, ANT+ and Bluetooth support, LED connection confirmation, and replaceable battery make it suitable for regular training across several types of equipment and apps.
Best For: Exercisers who want long battery life and broad app or equipment compatibility.
Pros:
- Rated IP67 waterproof and designed for cycling, fitness, football, and running.
- Supports ANT+ and Bluetooth connections with phones, watches, bike computers, treadmills, and compatible apps.
- Offers up to 800 hours of battery life with a replaceable CR2032 battery.
- LED feedback confirms readiness and connection during setup.
Cons:
- Swimming is not recommended.
- Bluetooth should be connected through the app rather than directly through phone settings.
The HS500 is a practical value-oriented choice for users who dislike frequent battery changes. Its IP67 protection is useful for sweaty workouts and wet conditions, but swimmers should consider another monitor.
Best for Simplicity – Garmin HRM 200
The Garmin HRM 200 is a straightforward choice among waterproof heart rate monitors, delivering real-time heart rate and HRV data to compatible Garmin devices, fitness equipment, and apps. Its 3 ATM water rating, machine-washable strap, and user-replaceable battery support regular use.
Best For: Garmin users who want dependable heart rate and HRV tracking without the HRM 600’s expanded feature set.
Pros:
- Transmits real-time heart rate and HRV data to compatible Garmin equipment and apps.
- Has a durable 3 ATM water rating for everyday training.
- Provides up to one year of battery life with a user-replaceable CR2032-type battery.
- Machine-washable strap simplifies cleaning.
Cons:
- Its water rating is less substantial than fully waterproof models.
- It does not list the HRM 600’s additional running-dynamics and workout-recording features.
The HRM 200 is a sensible fit for routine workouts and Garmin-based training. It emphasizes core heart rate and HRV tracking, durability, and low-maintenance ownership rather than advanced extras.
Best Bluetooth Armband – COROS Heart Rate Monitor
The COROS Heart Rate Monitor is a comfortable armband option for shoppers comparing waterproof heart rate monitors for sports and workouts. Its soft, breathable band, wear detection, and Bluetooth connectivity make it simple to use, though the supplied notes do not specify a waterproof rating.
Best For: Athletes who want a lightweight armband for workout heart-rate tracking with COROS devices or other Bluetooth equipment.
Pros:
- Soft, breathable fabric band is designed to be more comfortable than a chest strap.
- Can pair with up to three devices simultaneously through Bluetooth.
- Offers up to 38 hours of operation and automatic wear detection.
- Sensor removes easily for quicker band cleaning.
Cons:
- Bluetooth only; it is not compatible with ANT+.
- Designed for sports and activities rather than daily heart-rate tracking.
- USB charging cable is included, but a Type-C adapter is not.
Choose this model if comfort, simple auto-start behavior, and COROS integration matter more than ANT+ support or a documented waterproof rating. Its large band fits arms from 9.4 to 16.9 inches.
Best Waterproof Multi-Position Sensor – Myzone Switch Heart Rate Monitor
The Myzone Switch is a versatile pick among waterproof heart rate monitors, with adjustable placement for the chest, wrist, or arm and water resistance to 10 meters. It also combines Bluetooth and ANT+ connectivity with onboard memory for phone-free workouts.
Best For: Multisport users who want flexible wearing positions, water exposure protection, and compatibility with phones or cardio equipment.
Pros:
- Waterproof to a depth of 10 meters.
- Adjustable straps support chest, wrist, and arm placement.
- Works with Bluetooth 4.0 and ANT+ devices, including compatible cardio machines.
- Stores up to 36 hours of exercise without a phone.
Cons:
- Wrist and arm accuracy is listed at 95%, compared with 99.4% on the chest.
- Its feature set relies heavily on the Myzone app for live stats and MEP tracking.
- The warranty is listed as 12 months.
The MZ-Switch stands out for users who move between sports and wearing positions. It is the strongest match here for water-related workouts because the supplied specifications provide a clear 10-meter waterproof rating.
Best Affordable Chest Strap – Polar H9 Heart Rate Sensor
Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap, M-XXL
Check Price On AmazonThe Polar H9 is a straightforward chest-strap choice for shoppers seeking reliable heart-rate data and broad equipment compatibility. Although it is included in this waterproof heart rate monitors roundup, the supplied notes do not provide a waterproof rating, so it is best evaluated as a general training sensor.
Best For: Everyday workouts and users who want an affordable chest sensor that connects with compatible equipment, computers, tablets, smartphones, and apps.
Pros:
- Uses high-accuracy heart-rate sensors based on Polar’s long-standing tracking platform.
- Works with HRM-compatible equipment and popular smartphone apps.
- CR2025 battery provides an average life of up to 400 hours.
- Available in XS-S and M-XXL strap sizing.
Cons:
- The supplied notes do not specify waterproofing.
- It uses a replaceable CR2025 button cell rather than a rechargeable battery.
- Chest-strap placement is less flexible than armband or multi-position designs.
The H9 is a practical value option when accurate chest-based tracking and long battery life are priorities. Consider another model if documented water protection or multiple wearing positions is essential.
Best Long-Battery Chest Strap – COOSPO H808S
For athletes who want waterproof heart rate monitors with broad device compatibility, the COOSPO H808S is a practical chest-strap option. It uses Bluetooth 4.0 and ANT+ to send real-time heart rate data to compatible watches, bike computers, phones, and fitness apps.
Best For: Cyclists, runners, and fitness users who want a lightweight chest strap with replaceable batteries and extended battery life.
Pros:
- IP67 waterproof construction for sweat and water exposure during workouts.
- Dual Bluetooth and ANT+ connectivity supports multiple compatible devices and apps.
- Up to 300 hours of battery life from a replaceable CR2032 battery.
- Advertised accuracy of ±1 BPM with LED and beep status reminders.
Cons:
- Requires moistening the electrode areas before use.
- The chest strap is recommended for replacement after six months or 300 washes.
- IP67 protection is not presented as suitable for swimming.
The H808S stands out when long battery life and dual-protocol connectivity matter more than a rechargeable design. Its chest-strap format is well suited to structured training, provided you are comfortable maintaining and replacing the strap.
Best Waterproof Armband – Scosche Rhythm+ 2.0
The Scosche Rhythm+ 2.0 is one of the more comfortable waterproof heart rate monitors for users who prefer an optical armband instead of a chest strap. Its adjustable band can be worn on the forearm, bicep, or tricep and connects through Bluetooth or ANT+.
Best For: Runners, gym users, and cyclists seeking a breathable armband with HRV data support and broad device compatibility.
Pros:
- IP68 waterproof construction helps protect against sweat, rain, and demanding training conditions.
- Adjustable armband design provides an alternative to restrictive chest straps.
- Bluetooth and ANT+ connectivity works with compatible watches, equipment, and apps.
- HRV mode captures RR interval data for supported training, sleep, and stress apps.
Cons:
- Battery life is up to 24 hours, considerably less than some replaceable-battery chest straps.
- Optical armband placement may not suit users who prefer chest-based monitoring.
- It carries a one-year limited warranty rather than the longer support period noted for technical assistance.
Choose the Rhythm+ 2.0 if comfort and HRV-focused features are priorities. Its IP68 rating and dual connectivity make it flexible for indoor and outdoor training, while the shorter battery cycle means more frequent charging.
Best Rechargeable Training Armband – moofit HW401
The moofit HW401 is a rechargeable choice among waterproof heart rate monitors, combining an optical armband with Bluetooth and ANT+ connectivity. It is designed for training activities such as running, cycling, hiking, yoga, and strength workouts, but the supplied notes specifically exclude swimming.
Best For: Fitness users who want a rechargeable optical sensor with dual connectivity for popular training apps and equipment.
Pros:
- IP67 protection helps resist sweat and water during exercise.
- Bluetooth and ANT+ support works with platforms including Wahoo, Strava, and Elite HRV.
- Rechargeable battery provides more than 20 hours of continuous use.
- Optical sensor is advertised with accuracy of up to ±1 BPM.
Cons:
- It is not suitable for swimming.
- Battery life is shorter than the COOSPO H808S’s stated 300 hours.
- Requires charging with the included magnetic charging cable.
The HW401 is a sensible middle ground for users who want the convenience of rechargeable power without giving up ANT+ connectivity. Its IP67 rating suits sweaty workouts and outdoor training, but swimmers should choose a different monitor.
How We Picked the Best Waterproof Heart Rate Monitors
We focused on models that combine dependable heart-rate tracking with practical water resistance, broad device compatibility, and comfortable wear during exercise. The selection includes chest straps for users who prioritize signal consistency and armbands for those who prefer easier setup and less contact around the torso.
We also considered connection standards, battery or rechargeable power, automatic wear detection, sensor placement, replacement-strap availability, and compatibility with watches, cycling computers, gym equipment, and fitness apps. Water resistance ratings were treated as a useful durability indicator, but buyers should still confirm whether a specific model is designed for swimming or only for sweat and rain.
Quick Comparison
| Monitor type | Best suited for | Connectivity to look for |
|---|---|---|
| Chest strap | Accurate training, intervals, cycling, running | Bluetooth and/or ANT+ |
| Armband | Comfort, gym workouts, casual training | Bluetooth and ANT+ |
| Swim-capable sensor | Pool workouts and multisport training | Check the product’s swim and transmission limits |
Key Buying Factors for Waterproof Heart Rate Monitors
Waterproof Rating
IP67 protection generally covers dust and temporary water immersion, making it suitable for sweat, rain, and accidental splashes. It does not automatically mean a monitor can transmit heart rate underwater. If swimming is a priority, verify the manufacturer’s stated pool or open-water use.
Chest Strap Versus Armband
Chest straps usually provide a strong electrical signal close to the heart and are often preferred for intervals, racing, and structured training. Armbands use optical sensing and can be easier to put on, though fit, skin contact, motion, and cold temperatures may affect readings.
Connectivity and Compatibility
Bluetooth is useful for phones, tablets, smartwatches, and many fitness apps. ANT+ is especially convenient for bike computers, compatible watches, and gym equipment. Dual-protocol models offer the most flexibility, but always check the number of simultaneous connections supported.
Battery and Fit
Long-lasting replaceable batteries reduce maintenance, while rechargeable models avoid disposable cells. Look for an adjustable strap, a washable or replaceable band, and a secure fit that stays firmly against the skin without restricting breathing.
Who Should Buy Which Waterproof Heart Rate Monitors?
Choose a chest strap if training accuracy and fast response matter most. Choose an armband if you want simpler, more comfortable everyday monitoring. Choose a dual Bluetooth/ANT+ model if you use multiple devices or switch between gym equipment, a smartwatch, and a cycling computer. Choose a swim-oriented option only after confirming its underwater recording and transmission capabilities.