Accurate heart-rate data can make workouts more productive, whether you train in the pool, ride indoors, run outdoors, or monitor daily activity. The best waterproof heart rate monitors balance reliable readings with a secure fit, broad device compatibility, and enough battery life for your routine.
This roundup compares chest straps, optical armbands, watches, and fitness trackers to help you choose the right monitoring style for your training goals and budget.
Best 10 Waterproof Heart Rate Monitors Picks for 2026
Long-Battery Waterproof Pick
- IP67 water protection for workouts
- ANT+ and Bluetooth connectivity
- Up to 800 hours of battery life
Best For: Multi-device training and long battery intervals
Garmin Training Choice
- Tracks heart rate and HRV
- 3 ATM water rating
- Machine-washable strap
Best For: Garmin users seeking easy maintenance
Trusted Everyday Option
- Works with compatible equipment and apps
- Multiple strap sizes available
- Two-year manufacturer warranty
Best For: Everyday training and broad compatibility
Budget Dual-Mode Pick
- IP67 waterproof chest strap
- Bluetooth and ANT+ transmission
- 300-hour replaceable-battery life
Best For: Multi-app training on a budget
Comfortable Armband Pick
- Breathable armband with automatic wear detection
- Pairs with up to three Bluetooth devices
- 38-hour operating battery life
Best For: COROS users and workout-focused athletes who prefer an armband
Best Dual-Protocol Value
POWR LABS Rechargeable Heart Rate Armband
- IPX67 sweat and waterproof protection
- Bluetooth and ANT+ connectivity
- Up to 60 hours of battery life
Best For: Multi-device athletes using Peloton, Wahoo, Garmin, or fitness apps
Best Traditional Setup
EZON T037 Heart Rate Monitor Watch
- 5ATM waterproof chest strap and watch
- Real-time heart rate and calorie display
- Up to 365 days from replaceable batteries
Best For: Users wanting a simple, phone-free workout heart rate setup
Best Swim-Friendly Armband
- Upper-arm, forearm, or goggle-clip wear
- Dual Bluetooth and ANT+ connectivity
- Lightweight design for wrist-free training
Best For: Swimmers and athletes wanting a compact optical sensor
Best All-Day Fitness Watch
- 24/7 heart rate and activity tracking
- IP68 protection for sweat and rain
- Up to seven days of normal-use battery
Best For: Everyday fitness and smartwatch functionality
Best for Training Connectivity
- Bluetooth Smart and ANT+ pairing
- IP68 armband for demanding workouts
- HRV mode and 24-hour battery life
Best For: Runners, cyclists, and gym athletes using connected apps
Long-Battery Waterproof Pick – GEOID HS500
The GEOID HS500 is a practical choice among waterproof heart rate monitors for runners, cyclists, and gym users who want ANT+ and Bluetooth connectivity. Its IP67 rating, movement-resistant algorithms, replaceable CR2032 battery, and claimed 800-hour battery life make it well suited to frequent training, though it is not recommended for swimming.
Best For: Multi-device training and users who prioritize long battery life.
Pros:
- IP67 waterproof design for exercise in wet conditions.
- Supports both ANT+ and Bluetooth connections across compatible watches, apps, bike computers, and fitness equipment.
- Provides up to 800 hours of battery life with a replaceable CR2032 battery.
- LED feedback confirms connection and heart-rate-monitor status.
Cons:
- Swimming is not recommended.
- Bluetooth pairing should be completed through the app rather than directly through the phone settings.
Choose the HS500 if you want broad compatibility and minimal battery maintenance. Its IP67 protection is useful for workouts, but swimmers should consider a monitor specifically intended for pool use.
Garmin Training Choice – Garmin HRM 200
The Garmin HRM 200 is a straightforward option among waterproof heart rate monitors for people using Garmin watches, cycling computers, fitness equipment, or compatible apps. It transmits real-time heart rate and heart rate variability data, offers a 3 ATM water rating, and includes a machine-washable strap.
Best For: Garmin users who want a durable chest strap with simple maintenance.
Pros:
- Transmits real-time heart rate and heart rate variability data.
- Works with compatible Garmin devices, fitness equipment, apps, and smartphones.
- 3 ATM water rating supports use during water-exposed workouts.
- Machine-washable strap and user-replaceable battery simplify upkeep.
Cons:
- Battery life is rated for up to one year, shorter than some alternatives in this roundup.
- Available in two strap sizes, so choosing the appropriate fit is important.
The HRM 200 makes sense for a Garmin-centered setup, especially if you value HRV data and easy strap cleaning. Its 3 ATM rating adds water resistance without positioning it as a dedicated swimming monitor.
Trusted Everyday Option – Polar H9
Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap, M-XXL
Check Price On AmazonThe Polar H9 is an everyday chest-strap option among waterproof heart rate monitors, built around Polar’s established heart-rate tracking technology. It works with HRM-compatible equipment and smartphone apps, while its available strap sizes help users select a more suitable fit.
Best For: Everyday training with broad app and equipment compatibility.
Pros:
- Designed for accurate heart-rate tracking during regular workouts.
- Works with HRM-compatible equipment and popular smartphone apps.
- Available in XS-S and M-XXL strap sizes.
- Includes a two-year manufacturer warranty.
Cons:
- Rated battery life is 400 hours, lower than several competing models.
- Requires the specified CR2025 battery; other battery sizes may cause malfunction or damage.
- The supplied notes do not specify an IP or ATM water-resistance rating.
The H9 is a sensible pick when compatibility and Polar’s established tracking platform matter most. However, shoppers specifically seeking a clearly rated waterproof monitor should verify water-resistance details before buying.
Budget Dual-Mode Pick – COOSPO H808S
The COOSPO H808S is a compact choice among waterproof heart rate monitors for users who need dual Bluetooth and ANT+ transmission. Its IP67 rating, replaceable CR2032 battery, LED and beep reminders, and support for apps such as Strava, Zwift, and Wahoo Fitness make it useful for varied training setups.
Best For: Budget-conscious athletes using multiple fitness apps and devices.
Pros:
- IP67 waterproof protection for exercise use.
- Bluetooth 4.0 and ANT+ support allow connection to multiple compatible devices.
- Provides listed compatibility with fitness apps, sports watches, bike computers, and equipment.
- LED indicators and a beep help confirm operating status.
Cons:
- Battery life is rated at 300 hours.
- The electrode zones should be moistened before use for proper operation.
- The strap is recommended for replacement after six months or 300 washes.
The H808S is a versatile option for app-based workouts and connected training equipment. Its IP67 rating is helpful for wet workouts, while the shorter battery and strap-replacement guidance should be factored into ongoing ownership.
Comfortable Armband Pick – COROS Heart Rate Monitor
For shoppers comparing waterproof heart rate monitors, the COROS Heart Rate Monitor offers a soft armband alternative to a chest strap for sports and workout tracking. Its wear detection, three-device Bluetooth pairing, and 38-hour operating battery make it practical for focused training sessions.
Best For: COROS users and athletes who prefer a breathable, easy-to-clean armband with Bluetooth connectivity.
Pros:
- Soft, breathable band designed for comfortable sports use.
- Automatically powers on and off when worn.
- Can connect to up to three devices simultaneously via Bluetooth.
- Provides up to 38 hours of operation per charge.
Cons:
- Bluetooth only; it is not compatible with ANT+.
- Designed for workout monitoring rather than daily heart rate tracking.
- USB charging cable is included, but a Type-C adapter is not.
This is a sensible choice when comfort and quick setup matter more than ANT+ support. Confirm device compatibility before buying, especially if your training equipment relies on ANT+.
Best Dual-Protocol Value – POWR LABS Rechargeable Heart Rate Armband
Among waterproof heart rate monitors, the POWR LABS armband stands out for combining IPX67 sweat and waterproof protection with both Bluetooth and ANT+ connectivity. Its optical sensor, automatic activation, and 60-hour battery are useful for athletes connecting to several training devices.
Best For: Peloton, Wahoo, Garmin, and fitness-app users who need flexible Bluetooth and ANT+ pairing.
Pros:
- IPX67-rated for sweat and waterproof protection.
- Supports both Bluetooth and ANT+ and connects to up to three devices.
- Automatic wear detection starts the device when it touches the skin.
- Lightweight silicone armband weighs 20 grams and offers up to 60 hours of battery life.
Cons:
- Uses a rechargeable battery rather than replaceable batteries.
- One-year warranty is shorter than some competing coverage periods.
This is one of the more versatile options in the group because it supports both major wireless protocols and a broad range of fitness platforms. It is a strong fit for multi-device training setups where waterproof protection and long battery life are priorities.
Best Traditional Setup – EZON T037 Heart Rate Monitor Watch
The EZON T037 pairs a heart rate chest strap with a dedicated digital watch, making it a straightforward option for shoppers seeking waterproof heart rate monitors without relying on a phone or smartwatch. Its 5ATM waterproof design, target-zone alerts, and replaceable batteries support simple workout tracking.
Best For: Runners, cyclists, and fitness users who want an independent display with long-lasting replaceable batteries.
Pros:
- 5ATM waterproof design suits outdoor training and wet conditions.
- Displays real-time heart rate and estimated calories on the included watch.
- Customizable heart rate safety zone with audible alerts.
- Watch and chest strap batteries can last up to 365 days.
Cons:
- Uses a chest strap rather than a more casual armband design.
- CR2032 battery replacement requires basic tools.
- Workout data is displayed on the included digital watch rather than through a listed app ecosystem.
Choose the T037 if you value a self-contained workout setup, visible readings, and minimal charging. Its chest strap format is less convenient for users seeking an armband, but the long battery life and 5ATM rating are practical advantages.
Best Swim-Friendly Armband – Polar Verity Sense
Polar Verity Sense - Optical Heart Rate Monitor Armband - ANT+, Dual Bluetooth, Black, S-L
Check Price On AmazonThe Polar Verity Sense is a compact choice for anyone comparing waterproof heart rate monitors without wanting a wrist-based device. Its optical sensor can be worn on the upper arm, forearm, or with the included swimming-goggle clip, while ANT+ and dual Bluetooth support make it suitable for connected workouts.
Best For: Swimmers, athletes, and users who want a lightweight heart rate sensor that keeps the wrist free.
Pros:
- Can be worn on the arm or clipped to swimming goggles.
- Supports two simultaneous Bluetooth connections and unlimited ANT+ connections.
- Records sessions for later transfer or broadcasts heart rate live.
- Compact 19-gram design with a simple one-button control.
Cons:
- Does not provide the smartwatch-style notifications and daily tools found on a fitness watch.
- Supplied notes do not specify a battery runtime or water-resistance rating.
The Verity Sense stands out for flexible placement and broad connectivity. It is a practical option when accurate optical heart rate tracking and swim compatibility matter more than having a display on your wrist.
Best All-Day Fitness Watch – MorePro Fitness Tracker
The MorePro Fitness Tracker combines heart rate tracking with everyday smartwatch features, making it a broad-use option among waterproof heart rate monitors. Its IP68 design is suited to sweat, rain, and hand-washing, while activity, sleep, blood oxygen, and notification features support daily use.
Best For: Android and iOS users who want an all-day fitness tracker with heart rate monitoring, workout modes, and smart notifications.
Pros:
- Offers 24/7 heart rate monitoring and on-demand blood oxygen checks.
- Includes 120-plus sport modes, step counting, sleep tracking, and calorie tracking.
- IP68 waterproof design handles sweat, rain, and hand-washing.
- Battery lasts up to seven days with normal use and supports call and app notifications.
Cons:
- It is not intended for medical use.
- Not compatible with PCs or tablets.
- The supplied notes do not identify a specific heart rate accuracy standard.
This tracker is more of an everyday smartwatch than a dedicated training sensor. Choose it if you value broad wellness and lifestyle features alongside heart rate monitoring and basic water resistance.
Best for Training Connectivity – Scosche Rhythm+ 2.0
The Scosche Rhythm+ 2.0 is a focused armband monitor for runners, cyclists, and gym users who want dependable live heart rate data. As one of the waterproof heart rate monitors with IP68 protection, it is built for sweat, rain, and demanding sessions, with both Bluetooth Smart and ANT+ pairing.
Best For: Athletes who want a comfortable alternative to a chest strap with broad app, watch, and fitness-equipment compatibility.
Pros:
- Provides real-time optical heart rate tracking over Bluetooth or ANT+.
- Adjustable strap can be worn on the forearm, bicep, or tricep.
- IP68 construction suits sweat, rain, and high-intensity workouts.
- Offers HRV mode with RR interval data and up to 24 hours of battery life.
Cons:
- Battery life is limited to about 24 hours of continuous use.
- It has no built-in display for viewing metrics directly on the device.
- Includes a one-year warranty rather than the longer warranty listed for the Polar sensor.
The Rhythm+ 2.0 is a strong fit for structured training because it prioritizes stable connections, comfortable placement, and HRV data. It is especially useful when you already use a compatible watch, app, or exercise machine.
How We Picked the Best Waterproof Heart Rate Monitors
We focused on the features that matter during real workouts: water resistance, heart-rate accuracy, wearing comfort, connection options, battery performance, and compatibility with phones, watches, cycling computers, and fitness equipment. The selection includes chest straps for responsive readings, optical armbands for easier everyday wear, and watch-style devices for users who want broader activity tracking.
We also considered practical details such as ANT+ and Bluetooth support, rechargeable versus replaceable batteries, automatic wear detection, and whether a monitor is better suited to swimming, running, cycling, gym sessions, or general wellness tracking.
Quick Comparison
- Chest straps: Usually the best choice for high-intensity training and fast heart-rate changes.
- Optical armbands: Easier to put on and often more comfortable for long sessions or users who dislike chest straps.
- Fitness watches: Convenient for all-day tracking, but may offer less consistently responsive readings during intervals.
- ANT+ and Bluetooth models: Offer the broadest compatibility with sports watches, phones, trainers, and gym equipment.
- Rechargeable models: Reduce battery replacement costs, while coin-cell designs can provide very long runtime between changes.
Key Buying Factors for Waterproof Heart Rate Monitors
Water Resistance and Intended Use
Check the exact rating rather than assuming every water-resistant monitor is suitable for swimming. IP ratings generally describe protection from dust and water exposure, while ATM ratings are commonly used for pressure resistance. For pool workouts, choose a model whose specifications explicitly support your intended use.
Sensor Type and Fit
Chest straps typically maintain close skin contact and respond quickly to interval changes. Armbands can be more comfortable and convenient, but fit and placement affect optical readings. Whichever style you choose, a secure fit without excessive pressure is essential.
Connectivity
Bluetooth is useful for phones and many fitness apps, while ANT+ remains valuable for bike computers, sports watches, and compatible gym equipment. Dual-protocol models provide more flexibility if you use multiple devices.
Battery Life and Maintenance
Look for battery life that matches your training frequency. Rechargeable units are convenient for frequent use; replaceable-battery straps may last for months or hundreds of hours. Rinse monitors after sweaty or chlorinated workouts and follow the manufacturer’s care instructions.
Who Should Buy Which Waterproof Heart Rate Monitors?
Choose a chest strap if training accuracy and rapid response are your priorities, especially for intervals, cycling, running, or structured workouts. Choose an optical armband if you want simpler setup and greater comfort for long sessions. Choose a watch-style tracker if all-day heart-rate, sleep, steps, and wellness features matter more than specialized training precision. For mixed-device households, prioritize dual ANT+ and Bluetooth connectivity.