The best waterproof heart rate monitors make it easier to track effort during swimming, running, cycling, gym sessions, and everyday training. This roundup compares chest straps, armbands, and watch-style options across accuracy, connectivity, comfort, water resistance, and battery life.
Whether you train with a phone, smartwatch, bike computer, or fitness app, the right monitor should provide dependable readings without becoming difficult to wear or maintain. Use the guide below to narrow the choices by workout style, fit, and compatibility.
Best 10 Waterproof Heart Rate Monitors Picks for 2026
Most Versatile
- Fully waterproof chest-strap sensor
- Bluetooth, ANT+, and 5 kHz connectivity
- Internal memory and 400-hour battery life
Best For: Multi-device training and swimmers
Most Comfortable
- Soft, breathable arm-worn design
- Connects to up to three devices
- 38-hour rechargeable operating time
Best For: COROS users seeking an armband
Best Value
- High-accuracy everyday heart-rate tracking
- Works with compatible equipment and apps
- 400-hour CR2025 battery life
Best For: Budget-conscious everyday workouts
Best Dual-Mode Budget Pick
COOSPO H808S Heart Rate Monitor
- IP67 waterproof chest strap
- Bluetooth 4.0 and ANT+ connectivity
- ±1 BPM accuracy and 300-hour battery
Best For: Connected training on a budget
Best Overall Arm-Band Pick
- IP68 waterproof optical armband
- Bluetooth and ANT+ connectivity
- HRV mode and 24-hour battery
Best For: Runners, cyclists, and gym users wanting flexible app compatibility
Best Watch Bundle
- 5ATM waterproof watch and strap
- Built-in display with heart-rate alerts
- Up to 365 days of battery use
Best For: Users wanting simple, standalone workout tracking
Best Budget Armband
- IP67 sweat and water protection
- Bluetooth and ANT+ support
- Rechargeable battery with 20+ hours
Best For: Land-based training with compatible fitness apps
Waterproof Watch Monitor
T007 Chest Strap Heart Rate Monitor
- Integrated watch with continuous heart rate tracking
- 5ATM water resistance for sports and daily use
- Large display, stopwatch, and target-zone alerts
Best For: Standalone workout monitoring with an easy-to-read display
Precision Wireless Sensor
- ECG algorithm for real-time heart rate tracking
- Bluetooth and ANT+ compatibility
- 500-hour battery and HRV monitoring
Best For: Connected training with compatible apps, watches, and cycling computers
Long-Battery Training Sensor
- ANT+ and Bluetooth support for broad compatibility
- 800-hour replaceable-battery life
- IP67 protection with LED connection confirmation
Best For: Frequent land-based training across multiple devices and apps
Most Versatile – Polar H10 Heart Rate Monitor
For shoppers comparing waterproof heart rate monitors, the Polar H10 stands out for its broad connectivity and emphasis on measurement precision. This chest-strap sensor supports Bluetooth, ANT+, and 5 kHz connections, with internal memory for multiple hours of data.
Best For: Athletes who want a highly versatile, accurate chest strap for watches, phones, gym equipment, and other compatible devices.
Pros:
- Fully waterproof for swimming and demanding workouts.
- Supports Bluetooth, ANT+, and 5 kHz connections, including simultaneous Bluetooth connections.
- Internal memory stores multiple hours of training data.
- CR2025 battery provides an advertised average life of 400 hours.
Cons:
- Uses a chest strap rather than an arm-worn design.
- Requires the specified CR2025 battery; other sizes may damage the sensor.
The H10 is a strong all-around choice when compatibility and waterproofing matter as much as accurate readings. Its extensive connection options make it especially practical for multi-device training setups.
Most Comfortable – COROS Heart Rate Monitor
The COROS Heart Rate Monitor offers an arm-worn alternative to traditional waterproof heart rate monitors. Its soft, breathable band uses Bluetooth connectivity, supports up to three paired devices at once, and automatically powers on or off when it detects wear.
Best For: COROS users and athletes who prefer a comfortable armband for workouts instead of a chest strap.
Pros:
- Soft, breathable fabric band designed for comfortable exercise use.
- Can connect simultaneously with up to three devices.
- Wear detection automatically starts and stops operation when worn.
- Rechargeable battery provides 38 hours of operation or up to 80 days of standby.
Cons:
- Uses Bluetooth only and is not compatible with ANT+.
- Designed for sports and activities, not daily heart-rate tracking.
- USB charging cable is included, but a Type-C adapter is not.
Choose this monitor if comfort and quick setup are priorities, particularly within a COROS-based training system. Confirm that your devices support Bluetooth before buying, since ANT+ connectivity is unavailable.
Best Value – Polar H9 Heart Rate Sensor
Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap, XXS-S
Check Price On AmazonThe Polar H9 is a straightforward option for shoppers seeking waterproof heart rate monitors from an established sensor brand. It provides high-accuracy tracking, works with compatible equipment, and connects to popular smartphone apps for everyday workouts.
Best For: Everyday users who want a reliable, affordable chest-strap monitor with broad compatibility.
Pros:
- Works with all HRM-compatible equipment according to the supplied product details.
- Connects with smartphones and popular fitness apps.
- Advertised average battery life is 400 hours.
- Available in XS-S and M-XXL strap sizes.
Cons:
- The supplied notes do not specify a waterproof rating.
- Uses a chest strap, which may be less comfortable than an armband for some users.
- Uses a CR2025 button-cell battery rather than rechargeable charging.
The H9 keeps the feature set focused on dependable heart-rate tracking and everyday compatibility. It is a sensible pick when you want Polar’s established ecosystem without the H10’s added connectivity and memory features.
Best Dual-Mode Budget Pick – COOSPO H808S Heart Rate Monitor
The COOSPO H808S is a practical choice among waterproof heart rate monitors for users who need both Bluetooth and ANT+ connectivity. Its IP67 waterproof rating, replaceable battery, and compatibility with fitness apps and devices make it suited to connected training.
Best For: Budget-minded cyclists, runners, and indoor-training users who need dual Bluetooth and ANT+ connections.
Pros:
- IP67 waterproof rating for exercise and wet conditions.
- Supports both Bluetooth 4.0 and ANT+ transmission.
- Advertised accuracy of within ±1 BPM.
- Works with devices and apps including Peloton, Strava, Wahoo Fitness, Polar Beat, and Zwift.
Cons:
- The chest strap should be moistened at the electrode zones before use.
- Battery life is listed at 300 hours, less than some competing options here.
- The strap is recommended for replacement after six months or 300 washes.
The H808S offers strong connectivity for the price, especially if your setup includes both ANT+ and Bluetooth equipment. Follow the strap-care and pairing instructions to get the most consistent performance.
Best Overall Arm-Band Pick – Scosche Rhythm+ 2.0
For shoppers comparing waterproof heart rate monitors, the Scosche Rhythm+ 2.0 is a versatile armband with optical tracking, Bluetooth and ANT+ connectivity, and IP68 protection. Its lightweight fit and up to 24 hours of battery life suit demanding workouts without the bulk of a chest strap.
Best For: Runners, cyclists, gym users, and athletes who want broad app and device compatibility plus HRV data.
Pros:
- IP68 protection helps handle sweat, rain, and tough training conditions.
- Supports both Bluetooth Smart and ANT+ connections.
- Offers HRV mode with RR interval data for supported apps.
- Adjustable armband can be worn on the forearm, bicep, or tricep.
Cons:
- Battery life is limited to about 24 hours per charge.
- It requires a compatible phone, watch, fitness device, or app for workout data viewing.
The Rhythm+ 2.0 is a strong all-around choice when waterproof durability, flexible placement, and multi-platform connectivity matter more than having a built-in display.
Best Watch Bundle – EZON T037 Chest Strap Monitor
This EZON bundle combines a chest-strap heart rate sensor with a digital watch, making it a practical option among waterproof heart rate monitors for people who prefer a dedicated display. Its 5ATM water resistance, stopwatch, calorie estimates, and heart-rate alerts support straightforward workout tracking.
Best For: Fitness users who want chest-strap readings and a simple watch display without depending on a phone or smartwatch.
Pros:
- 5ATM waterproof design is suited to wet outdoor conditions.
- Watch displays heart rate and estimated calorie consumption during workouts.
- Customizable heart-rate safety zone can provide audible alerts.
- CR2032 batteries are rated for up to 365 days of use.
Cons:
- Uses a chest strap, which some users may find less comfortable than an armband.
- Requires manual battery replacement with a screwdriver or coin.
- The listed compatible-device field is “No,” limiting connected-device use.
The T037 prioritizes simplicity and long battery life. Choose it if you want heart-rate information on your wrist and do not need Bluetooth or ANT+ integration with modern fitness platforms.
Best Budget Armband – moofit HW401
The moofit HW401 is a compact armband for shoppers seeking waterproof heart rate monitors with rechargeable power and dual wireless connectivity. Its IP67 rating helps protect against sweat and water during most training, while Bluetooth and ANT+ support works with popular apps and equipment.
Best For: Runners, cyclists, hikers, and gym users who want a lightweight rechargeable sensor for app-based training.
Pros:
- IP67 protection helps keep out sweat and water during exercise.
- Supports Bluetooth and ANT+ connections with compatible apps and equipment.
- Rechargeable battery provides more than 20 hours of continuous use.
- LED indicators show connection and operating status.
Cons:
- It is not suitable for swimming.
- Requires a compatible smartphone, app, or fitness device to view detailed data.
- Battery life is shorter than the Scosche Rhythm+ 2.0 listed above.
The HW401 offers a useful balance of low weight, rechargeable convenience, and broad connectivity. It is a sensible pick for land-based workouts, but swimmers should choose a monitor designed for pool use.
Waterproof Watch Monitor – T007 Chest Strap Heart Rate Monitor
For shoppers seeking waterproof heart rate monitors with an integrated display, the T007 combines continuous real-time tracking with a chest strap, stopwatch, calorie estimates, and audible and visual target-zone alerts. Its 5ATM water resistance suits everyday workouts and showering, but it is not intended for diving.
Best For: Athletes who want a standalone, easy-to-read heart rate watch for indoor and outdoor training.
Pros:
- Continuous heart rate tracking with manual target zones and alerts
- Large display and built-in stopwatch make workout data easy to read
- 5ATM/50M water resistance supports sports, showering, and daily use
- Replaceable CR2032 battery with stated average life of 12 months
Cons:
- Not designed for diving
- Uses a fabric chest strap and separate watch rather than app-focused connectivity
The T007 is a practical pick when you prefer visible workout feedback without relying on a phone. Choose it for its integrated watch format and target-zone guidance, especially if basic training functions matter more than advanced wireless features.
Precision Wireless Sensor – CYCPLUS H2Pro Chest Strap
The CYCPLUS H2Pro is one of the more connectivity-focused waterproof heart rate monitors, using an ECG algorithm to provide real-time readings over Bluetooth or ANT+. It is designed for phones, smartwatches, cycling computers, and fitness equipment, with IPX7 water and dust resistance and a claimed 500-hour battery life.
Best For: Connected athletes who want ECG-based heart rate and HRV data across fitness apps and compatible devices.
Pros:
- ECG algorithm is designed to reduce movement, breathing, muscle, and sweat interference
- Bluetooth and ANT+ connectivity supports phones, watches, cycling computers, and gym equipment
- Up to 500 hours of operation from a CR2032 coin-cell battery
- HRV monitoring supports more detailed training-load adjustments
Cons:
- Requires a compatible external device or app for viewing connected data
- Supplied notes list IPX7 water resistance but do not recommend a specific swimming use case
H2Pro stands out for athletes who want more than basic pulse tracking. Its wireless compatibility, ECG-based processing, and HRV support make it a strong training companion, provided your preferred apps and devices support Bluetooth or ANT+.
Long-Battery Training Sensor – GEOID HS500 Chest Strap
The GEOID HS500 is a versatile option among waterproof heart rate monitors, pairing IP67 protection with ANT+ and Bluetooth support. It automatically wakes when worn, confirms connection with an LED, and offers up to 800 hours of battery life for frequent running, cycling, fitness, or indoor-training sessions.
Best For: Multi-sport and indoor-training users who need long battery life and broad device compatibility.
Pros:
- ANT+ and Bluetooth connect with phones, sports watches, bike computers, treadmills, and fitness apps
- IP67 water resistance and algorithms designed to reduce movement and sweat interference
- Up to 800 hours of battery life with a replaceable CR2032 cell
- Automatic wake-up and LED connection confirmation simplify setup
Cons:
- Swimming is not recommended
- Bluetooth should be connected through the fitness app rather than directly through phone settings
- Viewing data requires a compatible connected device or app
HS500 is a sensible choice for users who rotate between training platforms and want to minimize battery changes. Its broad protocol support is the main advantage, while the swimming limitation makes it better suited to land-based exercise.
How We Picked the Best Waterproof Heart Rate Monitors
We focused on monitors that combine dependable heart-rate tracking with practical water resistance and broad device compatibility. The selection includes chest straps for training-focused accuracy, optical armbands for a less restrictive fit, and watch-style models for users who want a simple all-in-one display.
We compared advertised sensor technology, ANT+ and Bluetooth support, battery or rechargeable designs, claimed water-resistance ratings, comfort features, and compatibility with phones, watches, gym equipment, cycling computers, and fitness apps. Because water resistance does not guarantee suitability for every swimming or submersion scenario, always check the manufacturer’s rating and care instructions.
Quick Comparison
- Best for serious training: Chest-strap models such as the Polar H10 and comparable ANT+/Bluetooth sensors prioritize consistent readings and wide compatibility.
- Best for comfort: Armbands from Scosche, COROS, and moofit avoid the tighter feel of a chest strap and can be convenient for gym or running sessions.
- Best for long-term value: Models with replaceable batteries and long stated runtimes reduce charging interruptions.
- Best for simple workouts: Watch-style options add a display, stopwatch, calorie estimates, and other basic functions without requiring a separate smartwatch.
Key Buying Factors for Waterproof Heart Rate Monitors
Sensor Style and Accuracy
Chest straps usually sit close to the heart and are a strong choice for intervals, racing, cycling, and structured training. Optical armbands can be more comfortable, but readings may vary with movement, fit, skin contact, and temperature.
Water Resistance
Look for a clearly stated rating such as IP67 or 5 ATM, then match it to your activity. IP ratings describe protection against dust and water exposure, while ATM ratings are commonly used for pressure resistance. A splash-resistant monitor is not automatically designed for swimming.
Connectivity
Bluetooth is useful for phones and many fitness apps, while ANT+ works well with cycling computers, compatible watches, and gym equipment. If you plan to connect to multiple devices at once, verify whether the specific model supports dual transmission.
Battery and Fit
Consider whether you prefer a replaceable coin-cell battery or a rechargeable design. Also check strap adjustment, sensor placement, washable components, and replacement-strap availability. A monitor that stays secure and comfortable is more likely to produce consistent readings.
Who Should Buy Which Waterproof Heart Rate Monitors?
Choose a chest strap if training accuracy and fast response matter most, especially for interval workouts, cycling, endurance training, or use with multiple devices.
Choose an armband if you dislike chest straps or want a comfortable option for running, strength training, and general fitness. Confirm that the optical sensor supports your preferred phone, watch, or equipment.
Choose a watch-style monitor if you want a built-in screen and basic workout functions without relying on a separate smartphone or smartwatch. These models are convenient for casual exercise and straightforward tracking.
Before buying, confirm your device’s connection standard, the monitor’s water-resistance rating, and whether replacement parts are available. Those details usually matter more than extra metrics you may never use.