The best heart rate monitors for a workout in 2021, with chest straps and armbands

If you are interested in monitoring your heart rate, you can purchase a chest strap, a wristband watch, or an armband tracker. It all depends on what you require, as each variety has its own advantages and disadvantages.

Why should one consider using a heart rate monitor?

Most people who exercise will tell you that their primary goal is to reduce body fat or become more physically fit. However, very few individuals are aware of their current heart rate, let alone the ideal range in which it should be.

This indicates that most of the time, they are not training in the most effective manner for achieving their objectives. If you want to know for sure how many calories you’re burning during your workout, the only method to do it accurately is to wear a heart rate monitor that is permanently attached to your chest. Heart rate training is something that every top athlete does since they know that it will assist them in reaching their full potential in the shortest amount of time.

There are five different heart rate zones in your body. Your goals will determine which zone you spend the majority of your workout time in. If you want to burn fat, you should be in zone 2, and if you want to build up your endurance, you should be in zone 3, and zones 4 and 5 are for doing intense workouts. In most cases, you will only be able to stay in the high zones for a short period of time.

This implies that if you want to burn more calories and reduce body fat, you should reduce your pace a bit in order to achieve those goals. If you want to get faster, you should try to do things at a faster pace. You will find more information on the linked page regarding training within specific heart rate zones.

Watches, chest straps, and armbands are all examples of different types of heart rate monitors

Electronically detecting your pulse and transmitting that information to a receiver, such as a mobile device or a tracker worn on the wrist, is the function of a heart rate chest strap. This is comparable to what you might see in hospitals, where patients are often strapped with monitors to their chests for various reasons. The majority of monitors of this sort are known for their great level of precision.

The situation is the same with wearable trackers of your heart rate that you can slip onto your upper or lower arm. These have just begun to become available to the public. However, compared to chest straps, they offer a number of benefits that are more convenient and comfortable to wear.

Your heart rate is monitored by fitness trackers, such as those produced by Fitbit, Apple, or Garmin, when they are worn on the wrist. They work by emitting light, which is then reflected by the blood vessels that are traveling through your veins. This is done repeatedly. When your heart contracts, blood travels through your veins faster, resulting in less light being reflected back as it passes through your body. After that, an algorithm is used by the device that you wear on your wrist to determine your heart rate.

Although this method of monitoring your heart rate is handier than others, chest or armband monitors will always provide more accurate readings. A chest or wristband monitor is the way to go if monitoring your heart rate while exercising is something you take extremely seriously.

The difference in accuracy between using a chest strap or your wrist to measure your heart rate was assessed.

A new study has determined how much of a difference there is in terms of accuracy between heart rate monitors worn around the chest and those worn on the wrist. The Cleveland Clinic’s Cardiovascular Diagnosis & Therapy journal was the outlet for its publication.

The participants in the study were all considered to be in good health, and there were a total of 50 of them, with a mean age of 29. They all ran on a treadmill for 12 minutes while wearing a three-lead electrocardiogram, a Polar H7 chest strap monitor, and two randomly assigned wrist-based heart rate monitors that were commercially available. It was worn on both of the wrists. The Apple Watch Series 3, the Fitbit Ionic, the Tom Tom Spark 3, and the Garmin Vivosmart HR were among these products. The speed of the treadmill was increased gradually, beginning at 4 miles per hour and reaching a maximum of 9 miles per hour for the final two minutes of the workout (at zero inclines).

After that, the researchers compared the ECG findings to the findings obtained from a variety of heart rate monitors. The Polar H7 chest strap had the highest correlation coefficient with the ECG (rc=98), which was not a surprise. This was the case regardless of the speed. The Apple Watch came in second place (rc=96), followed by three other wrist-based heart rate monitors that all had a level of agreement that was comparable to one another (rc=89). A total of 25 evaluations were performed on all of the watches, four in total.

In addition to this, the research showed that the accuracy of wrist monitors tended to decrease when runners increased their speed. Again, the Apple Watch Series 3 came out on top of the competition. At a speed of 9 miles per hour, it was only off by 1.5 beats per minute, in contrast to the Garmin’s error of approximately three beats per minute.

However, while they were at rest, there was hardly any difference. This would imply that it is absolutely OK to use such devices to measure heart rate during activities of low intensity as well as to maintain tabs on resting heart rate, which is possibly one of the most important indications of an individual’s health and fitness.

This is not the first study of its kind that Cleveland Clinic has conducted. In an earlier study, participants used a treadmill at a speed that was considered to be moderate, and the accuracy of wrist-based wearables was investigated (up to 6 mph). Polar H7 chest strap (0.99), Apple Watch (0.93), Garmin Forerunner 235 (0.92), Tom Tom Spark Cardio (0.88), and Fitbit Blaze all showed good agreement with the ECG (0.76).

It is important to point out that the conditions here do not perfectly simulate those of jogging outside or on a different surface. In addition, given that the participants were jogging on a treadmill, there were occasions when it was noted that they were holding onto the railing of the treadmill.

So, what do you think we should take away from all of this?

In spite of the fact that fitness trackers and smartwatches offer a more convenient method of monitoring your heart rate, their accuracy will never be able to compete with that of a chest or armband-style monitor. In particular for workouts of a very intense nature.

As the accuracy of heart rate monitors for smartwatches and fitness bands continues to advance, this might alter in the future. But as of right now, we are not quite at that point.

The finest chest straps for monitoring your heart rate

In order to come up with our list of the best heart rate monitors, we have carefully and carefully investigated the many functions and features offered by each gadget. We make every effort to test everything on our own. Still, when this is not possible, we take into account user reviews and avoid purchasing products that have received poor ratings and negative feedback from consumers.

Polar H10

The H10 is an improved version of Polar’s H7 heart rate monitor, which was their best-selling model. It features a chest strap made of a pliable fabric that smoothly conforms to the contours of your body, much like its predecessor did. A new buckle mechanism and silicone dots help hold it in place when training and interference-preventing electrodes that help ensure that heart rate is caught accurately. Both of these features can be found on the chest strap.

The H10 comes equipped with its own internal memory. This may come in handy in circumstances in which you would want to forego using your phone. Because the tracker can only store a single heart rate training session at a time, you will need to sync it as soon as possible after completing your workout.

Your H10 strap is compatible with a variety of things, including several pieces of gym equipment. You can use it with such items. Since the device is water resistant, you can wear it while swimming; however, the Bluetooth connectivity will not be operational at this time.

The Polar Beat app can be used with the chest strap, which is wonderful. Because of this, utilizing it is quite easy, and all of the data is displayed in charts that are easy to comprehend.

Best features

  • good accuracy
  • a design that is non-slip, capable of simultaneously connecting two devices, and resistant to water.

In a nutshell, our investigation revealed that the Polar H10 chest strap is an effective product. The H10 is one of the better solutions available if you are looking for a reliable heart-rate monitor and are able to live with the strapping onto your chest that it requires.


Wahoo Tickr X

The Tickr X is the most sophisticated of the three different heart rate training chest straps that Wahoo offers. In addition to providing information on your ticker, the device can measure the number of calories burned, running form metrics, indoor run distance, spin cadence, and calculate the number of repetitions performed during strength training.

You can leave your smartphone behind because its internal memory can keep up to 16 hours’ worth of heart rate data, and you can sync the two devices at a later time. The tracker can be used in conjunction with more than fifty different applications developed by third parties, some of which include Nike+ Running, MapMyFitness, Runkeeper, Strava, Apple Health, and Cyclemeter/Runmeter.

The Tickr X has the capability to connect to GPS watches, iPhones, and Android devices thanks to its ANT+ and Bluetooth 4.0 capabilities. It is also possible to directly connect the strap to the Apple Watch in order to obtain heart rate data for use in the Workout app.

When everything is taken into consideration, it will be difficult for you to find a heart rate monitor that offers a greater value than the Wahoo Fitness Tickr X.

The finest qualities

  • It counts more than just the frequency of the heart rate.
  • Compatible with a wide variety of applications developed by other companies.
  • Connectivity through ANT+ in addition to Bluetooth
  • Excellent value for the price

The bottom truth is that this heart rate monitor is the most cutting-edge model that Wahoo has ever produced. TickrX is compatible with a wide variety of applications and provides a generous amount of onboard storage memory. When you combine it with the fact that it has connectivity via ANT+ and Bluetooth as well as an affordable price, you have a winner on your hands.


MyZone MZ-3

Since quite some time ago, MyZone has been active in the chest strap heart rate monitoring industry, focusing mostly on the fitness industry (gyms and health clubs). The company’s innovation with the MZ3 is that it makes standard heart rate training more like a competition.

Everyone has their own unique fitness zones, which shift as they progress through their exercise routines. These zones are identified, rewarded, and adapted by the MZ3, and the information about them is shown in five different tiles according to the level of intensity. After that, it transforms working out into a fun and thrilling game by utilizing a point-based system. The manufacturer asserts that its chest straps are capable of producing EKG readings with an accuracy rate of 99.4 percent.

In addition to viewing your physical activity data on the screen at participating gyms via ANT+, the MZ-3 also allows you to access your data on your smartphone via Bluetooth. It is compatible with a wide variety of applications developed by third parties.

The finest qualities

  • The use of gaming to motivate exercise
  • Connectivity through Bluetooth and ANT+, as well as displays for different heart rate zones on the tracker

Bottom line: The fact that this chest strap makes working out feel more like playing a game is what makes it so innovative. A more enjoyable workout experience is one of the intended outcomes of the points system. Aside from that, it provides you with all of the normal functions of a heart rate monitor, including a high level of accuracy.


The HRM Garmin Tri

This chest strap monitors heart rate and is developed specifically for triathletes.

The accelerometer that is incorporated right into the shoe provides information on six different running dynamics parameters. These metrics are the runner’s cadence, stride length, ground contact time, ground contact time balance, vertical oscillation, and vertical ratio. Even while you are swimming, the HRM-Tri records your heart rate and sends the information to your wearable device once you have finished the swim.

This is the thinnest, lightest, and most compact heart rate monitoring module that Garmin offers, and it fits within the width of the strap. The soft, rounded edges and concealed seams of the strap make it exceptionally pleasant to wear both in and out of the water. The battery has an exceptional lifespan of 10 months (assuming usage of 1 hour each day), and it uses a CR2032 battery that the user can replace.

The finest qualities

  • With regard to triathletes
  • Along with the user’s heart rate, it also provides performance information.
  • A waterproof battery that lasts for ten months

In a nutshell, this is a fully loaded chest strap, and it is perfect for individuals who are already a part of the Garmin ecosystem. The fact that it does not require charging, is water resistant and has useful running metrics all contribute to the product’s appeal. You should choose this option if you are interested in cycling, swimming, and running.


Suunto Smart Belt

It is true that size does matter. At the very least, if you ask Suunto, it does. According to the business, their product is the smallest heart rate sensor compatible with Bluetooth Smart currently available on the market. And it’s possible that they’re right. The sensor module is quite small and weighs just 40 grams; in comparison, the strap width is only 30 millimeters.

When used for running, the tracker can provide real-time data on the user’s heart rate as well as the number of calories burned. Because it is resistant to water up to 30 meters in depth, you can even use it while you are swimming.

The sensor can retain up to three hours of data on your heart rate while you are swimming in the pool. After you have returned to solid ground, you may do a post-workout analysis by syncing the device to your Ambit 3 watch or the Suunto smartphone software running on your Android or iOS device.

The finest qualities

  • Streamlined and low-weight construction
  • Memory that is resistant to water

In a nutshell, the Suunto heart rate chest strap is yet another viable alternative, and it packs all of the necessary technology into a package that is rather compact. If you already own a Suunto watch, then the answer is obvious to you.


Move the HR Burn and HR Sweat Buttons.

Moov is a company that has always taken an original and inventive approach to the activity tracking industry. HR Burn is the company’s first heart rate monitoring chest strap, just released too long ago. The EKG-accurate HR Sweat, which was introduced the previous year, is now joined by this new device.

These trackers will instruct you on how to get the most out of your activities and keep burning calories even hours after you’ve finished your routines. Just pay attention to the voice coaching, and you will remain in the appropriate zone for your heart rate. The intensity of your workouts will be adjusted for you using a combination of intelligence and diversity.

While the HR Burn operates similarly to a standard chest strap, the HR Sweat is designed to be worn on the high temple and provides what Moov claims to be a more precise reading of your pulse than can be obtained from either your wrist or chest. A light-emitting diode (LED) is used to illuminate the skin and the device measures variations in light absorption. The amount of light absorbed by the tissue is influenced by the perfusion of blood, which occurs when blood is pumped through your body in a rhythmic pattern. HR Sweat analyzes the changes in this data to calculate your heart rate.

In terms of its construction, the sensor is intended to be worn within a headband that is designed to absorb sweat. In addition, it is available as Moov HR Swim, which is essentially the same technology packaged in the shape of a swim cap. This indicates that you will be able to obtain accurate statistics regarding your heart rate when you are swimming.

When it comes to the lifespan of the battery, you may anticipate getting six hours of continuous usage, one week of use when used daily, and one month of standby time.

The finest qualities

  • It is available in the shape of a sweatband.
  • Coaching for the voice
  • Swimproof
  • Long life from the battery

Bottom line: Who would have thought that the forehead would be one of the greatest sites on the body to take a reading of a person’s heart rate? You could also choose to go with the Moov chest strap as an option. Both make use of the same technology that provides accurate EKG readings.

The most effective armbands for monitoring heart rate

Scosche Rhythm24

Our examination of heart rate monitors would not be complete until we also looked at monitors that are worn on the arm. Because of how convenient they are, demand for these has increased over the past few years.

The armband heart rate monitor offered by Scosche is both Bluetooth Smart and ANT+ compatible, contributing to its high accuracy level. In comparison to its predecessor, RHYTHM24 features a number of noteworthy advancements. This is a big improvement over the previous model, which only lasted for eight hours, and the name of the new device suggests that it will now last for twenty-four hours between charges.

The addition of waterproofing is yet another significant improvement. The water-resistance rating of the device’s second version is IP68, which indicates that it will just about make it through a swim session. RHYTHM24 also comes with internal memory, which retains your readings securely and enables you to exercise without needing to use your phone. This feature is equally as crucial.

You have the option of selecting from five different training modes, as well as two multi-modes, as well as an LED battery indication with lights that show different heart rate zones. In addition, the wearable gadget has a heart rate variability (HRV) mode that tracks the amount of time that passes between each heartbeat to assess stress and recovery. Additionally, there are profiles for a variety of activities, including swimming, jogging, and cycling, among others.

The finest qualities

  • Excellent accuracy
  • battery life of 24 hours
  • Water-resistant
  • Memory stored internally
  • a series of lights that indicate different heart rate zones

In conclusion, after conducting this review, we concluded that the RHYTHM 24 is an effective heart rate monitor that is very easy to wear. Scosche’s newest armband is one of the better available solutions, and it should be considered if you are thinking about getting rid of your old chest strap.


Polar OH1+

The middle-of-the-road solution offered by Polar has an excellent design and provides a few different alternatives for how and where it can be worn. In all honesty, there is not much to dislike about this. The accuracy of the readings is, however, what makes the greatest impression. It is comparable to the readings you would obtain from a heart rate chest strap, but it is a significant improvement over a heart rate monitor that is worn on the wrist. The Polar OH1 features connectivity via BLE and ANT+ and can be attached to swim goggles to obtain a reading of the wearer’s heart rate from the temple.

The Scosche Rhythm24 is its primary rival on the market. Both have the same cost, and the data they provide is of comparable quality. Because all of the lights are located on the underside of the unit, the OH1 is not only more compact but also more covert than other options due to its superior waterproofing.

The finest qualities

  • Excellent accuracy
  • Easy going and relaxing
  • Designed to be attached to swimming goggles
  • Connectivity options include Bluetooth and ANT+

In a nutshell, Polar’s product lineup includes a standalone optical heart rate sensor that is quite competitive in the market. It is simple to sync, has a great software ecosystem, is light, comfortable, and has a memory for caching. Additionally, it has a memory for caching.


Wahoo Tickr FIT is a workout app

This is another heart rate monitor, and it caters to individuals who value precision but despise having to wear the chest strap. The Tickr FIT, just like its two main rivals, comes in a form factor that is very pleasant to wear. It is possible to wear the elastic band on either the inside or the outside of the forearm; however, in contrast to its competitors, it cannot be worn on the upper arm.

The accuracy of the heart rate monitor is ensured by a cluster of three green LEDs that are positioned around an optical sensor. It has Bluetooth and ANT+ technology built in so that it can be paired with fitness applications, cellphones, GPS bike computers, and watches. However, it does not have any internal memory, and its rating for resistance to water is only IPX7, so you should not plan on taking it swimming with you.

The finest qualities

  • Connectivity via Bluetooth and ANT+ in a convenient package
  • Excellent value for the price
  • It only weighs 19 grams in total.
  • 30 hours of life on a single charge

In a nutshell, this is a quality offering that is available at a price that is not unreasonable. If you are looking for an alternative to a chest strap, this may be an option that is worth considering for your needs.



The MioPod is the last piece of equipment on our rundown of the most effective heart rate monitors. It is equipped with Valencell optical sensor technology, which, compared to standard heart rate straps, provides a clearer signal and less background noise. It excels in high-intensity workouts like HIIT and weight lifting, and its connectivity with NFC, BLE, and ANT+ enables it to transmit the user’s heart rate to other devices. HIIT stands for high-intensity interval training.

In addition to this, the device provides haptic alerts and LEDs that change color to indicate different heart rate zones. The device can store approximately 30 hours’ worth of biometric data, a water resistance rating of 5 ATM, and a battery life of approximately 24 hours.

The accompanying smartphone app provides a variety of Firstbeat analytics, such as Recovery Time, Training Effect, and Training Load, in addition to performance analytics and individualized training plans. Additionally, the gadget is compatible with a variety of other applications, including Runkeeper, Strava, and Zwift.

The finest qualities

  • Exceptional performance on the HIIT Haptic alerts in combination with LED prompts
  • Memory stored internally
  • Swimproof
  • Analytics Provided by Firstbeat

In a nutshell, the MioPod is an extremely accurate device with many capabilities that might come in handy in many situations. It is the most recent addition to this list. This is Mio’s first attempt since the company refocused its business strategy away from wearables in 2017. We are delighted that the company has resumed operations, and this appears to be an excellent starting point.

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