A watch that shows a heart rate number is easy to find. The difficult part is choosing between a slim activity tracker, a running watch with GPS, and a dedicated sensor that leaves the watch out of the way entirely. Blood oxygen, sleep data, water resistance, battery life, and the quality of the companion app matter just as much once the novelty wears off.
We compared the ten products in this roundup by what they actually monitor and how they fit into everyday training. The Best heart monitor watch for most people is the Garmin Forerunner 55, while the Garmin HRM 600 is the more focused pick for serious training data. The rest cover lightweight tracking, large displays, swimming, calls, and simple all-day wellness monitoring.
Comparison table
| # | Product | Award | Heart tracking | Battery or connectivity | Best for |
|---|---|---|---|---|---|
| 1 | Garmin Forerunner 55 | Best overall | Wrist heart rate | Up to 2 weeks smartwatch mode, 20 hours GPS | Runners who want training guidance |
| 2 | Garmin HRM 600 | Best dedicated monitor | Heart rate and HRV | Up to 2 months, compatible devices | Detailed workout recording |
| 3 | Fitbit Inspire 3 | Best discreet tracker | 24/7 heart rate, SpO2, irregular rhythm alerts | iOS and Android | Sleep and wellness tracking |
| 4 | COROS Heart Rate Monitor | Best armband | Workout heart rate | 38 hours, Bluetooth | Comfortable sports monitoring |
| 5 | MorePro Fitness Tracker | Best feature mix | Heart rate, blood pressure, blood oxygen | Up to 7 days normal use | Broad everyday tracking |
| 6 | Zeacool Fitness Tracker | Best for swimming | Heart rate, blood oxygen, blood pressure | Up to 10 to 14 days | Water-friendly health tracking |
| 7 | Bestinn 1.58 inch Fitness Watch | Best large display | Heart rate, blood pressure, blood oxygen | Phone GPS connection | Easy-to-read notifications |
| 8 | FITVII Health Tracker | Best for wrist calls | Heart rate, blood pressure, blood oxygen | Up to 7 days | Calls and fitness reminders |
| 9 | Bestinn 1.58 inch Gold Watch | Best customizable watch | Heart rate, blood pressure, blood oxygen | Phone GPS connection | Watch face customization |
| 10 | Amzhero Health Tracker | Best battery focus | Heart rate, blood oxygen, blood pressure | Up to 15 days standby | Simple long-running tracking |
1. Garmin Forerunner 55: Best Overall
Pros
- Built-in GPS tracks distance, pace, and route
- Suggested workouts adapt to training history and recovery
- Up to two weeks in smartwatch mode
- PacePro and race prediction tools add useful structure
Cons
- Heart rate is measured at the wrist, not with a dedicated strap
- GPS mode reduces battery life to up to 20 hours
- Not intended as a medical device
Best for: runners who want heart rate data tied to structured training and GPS.
The Garmin Forerunner 55 is the one that feels most like a training tool rather than a general wellness band. Its heart rate sensor sits on the wrist, so there is nothing extra to put on before a run, and the watch uses GPS to record how far, how fast, and where you ran. That combination makes it much more useful for someone who wants heart rate to change the way they train, not just appear in a daily dashboard.
The display and controls are built around running information. PacePro offers GPS-based pace guidance for a selected course or distance, while race predictions and finish-time estimates give training a clearer target. Daily suggested workouts vary in intensity according to training history, fitness level, and recovery time. Those recommendations are a meaningful step beyond the generic sport-mode lists on the MorePro Fitness Tracker and Bestinn 1.58 inch Fitness Watch.
Battery life is a major reason to choose this model. Garmin says it can run for up to two weeks in smartwatch mode, or up to 20 hours when GPS is active. That is enough for regular runs without turning charging into part of the training plan, although frequent GPS use naturally narrows the gap. It also tracks cycling, pool swimming, Pilates, HIIT, breathwork, and other activities, so it is not limited to road running.
The limitation is just as clear. This is a wrist heart rate watch, and the data is not the same proposition as a dedicated chest or armband sensor. The Forerunner 55 also does not replace medical equipment. Someone who wants HRV, stored workout data when a watch cannot be worn, or detailed running dynamics should look at the Garmin HRM 600 instead. For runners who want a self-contained watch with useful coaching, this remains the Best heart monitor watch in the group.
2. Garmin HRM 600: Best Dedicated Monitor
Pros
- Sends real-time heart rate and HRV data
- Records activities when a watch cannot be worn
- Supports running dynamics with a compatible watch
- Rechargeable battery lasts up to two months
- Machine-washable strap
Cons
- Requires a compatible watch, computer, fitness device, or app for the full experience
- It is not a watch or an on-wrist display
- The listed size is M to XL
Best for: athletes who want a dedicated sensor for training, team sports, swimming, and running analysis.
The Garmin HRM 600 is the specialist here. It does not try to be a smartwatch, and that is its advantage. The strap sends real-time heart rate and HRV data to compatible Garmin watches, cycling computers, fitness equipment, and apps. It can also record a workout when wearing a watch is impractical, such as during team sports, then sync the activity to Garmin Connect.
That distinction matters for people who care about workout data more than notifications. The sensor can provide stride length, vertical oscillation, ground contact time balance, and step speed loss when paired with a compatible smartwatch. On a treadmill or indoor track, it can send pace and distance to a compatible watch. It also stores heart rate data during swimming and syncs it after the workout is saved.
The machine-washable strap is available in XS to S and M to XL sizes, with this listing identifying the M to XL version. Battery life reaches up to two months, which is dramatically longer than the COROS Heart Rate Monitor's 38 hours of full operation. That extended runtime makes it easier to leave the sensor in a training bag instead of checking it before every session.
The catch is that this is not the right purchase for someone who simply wants a health watch on the wrist. It needs compatible equipment or the Garmin Connect app to turn its readings into a useful record, and the most advanced running features depend on a compatible smartwatch. Choose the HRM 600 over the Forerunner 55 when sensor placement and workout detail matter more than having a screen. For a closer look at dedicated sensor choices, the differences between chest and wrist heart tracking can help clarify the trade-off.
3. Fitbit Inspire 3: Best Discreet Tracker
Pros
- Slim tracker with small and large bands included
- Tracks heart rate continuously
- Includes irregular heart rhythm notifications
- Detailed sleep tracking with sleep score
- Automatic exercise tracking and more than 40 exercise modes
Cons
- Fewer exercise modes than the larger activity watches here
- Requires iOS 16.4 or higher or Android 11.0 or higher
- Focuses on wellness rather than GPS training
Best for: people who want a small tracker for heart rate, sleep, stress, and daily movement.
The Fitbit Inspire 3 is the easiest product here to forget you are wearing. It is much more discreet than the full-size watches, but it still tracks 24/7 heart rate, resting heart rate, SpO2, activity, and sleep. The included small and large bands make the fit more flexible than a fixed-size tracker, and the narrow design suits people who dislike a bulky watch at night.
Its strength is the context around the heart rate reading. Fitbit includes a daily Stress Management Score, mindfulness and relax breathing sessions, menstrual health tracking, and irregular heart rhythm notifications. Automatic sleep tracking adds a detailed Sleep Score, sleep stages, sleep mode, and a smart wake vibrating alarm. These features make the Inspire 3 a stronger overnight companion than the GPS-focused Garmin Forerunner 55.
The exercise coverage is more modest, with more than 40 exercise modes and automatic exercise tracking. That is plenty for walking, gym sessions, and routine workouts, but it is not aimed at runners who need route maps, pace guidance, or extensive training metrics. The lack of built-in GPS also means it is a different kind of tracker from Garmin.
Compatibility deserves attention before buying. Fitbit lists support for Apple iOS 16.4 or higher and Android 11.0 or higher, so older phones may not work. It is also a wellness tracker, not a medical device. If the goal is quiet all-day monitoring and sleep insight rather than a large screen, the Inspire 3 is the most natural fit. Readers weighing sleep data against broader wellness features may also want to consider which health signals are useful for everyday tracking.
4. COROS Heart Rate Monitor: Best Armband
Pros
- Soft breathable armband avoids a chest strap
- Can pair with up to three devices at once
- Wear detection powers it on and off automatically
- Provides 38 hours of operation
- Magnetic charging and removable sensor simplify cleaning
Cons
- Bluetooth only, with no ANT+ compatibility
- Designed for sports and activities, not daily tracking
- Standby life is 80 days, but active use is much shorter
Best for: athletes who want a comfortable arm-worn heart rate sensor during workouts.
The COROS Heart Rate Monitor occupies a useful middle ground between a wrist watch and a chest strap. Its fabric band sits around the arm, lays flat, and uses an elasticated fit with a sliding buckle. COROS describes the material as soft and breathable, which should appeal to athletes who find chest straps distracting but still want a separate sensor.
It can pair with up to three devices at the same time, including sports watches, indoor trainers, bike computers, phones, treadmills, rowers, and apps. The automatic wear detection is a small but thoughtful detail. The monitor powers on when worn and off when removed, then reconnects to paired devices when a workout begins.
The battery lasts 38 hours of full operation or up to 80 days on standby. A magnetic cable recharges it in about two hours, and removing the sensor from the band makes cleaning straightforward. This is a more sports-focused design than the Fitbit Inspire 3, and it does not try to provide sleep scores, message notifications, or a watch face.
There is one important connectivity restriction: Bluetooth only. It is not compatible with ANT+, which rules it out for some existing cycling computers and gym equipment. The product description also says it is not intended to collect daily heart rate data. Pick the COROS over the Garmin HRM 600 when a breathable armband matters and Bluetooth is enough. Skip it if you want a general-purpose health tracker or a device that works with ANT+ equipment.
5. MorePro Fitness Tracker: Best Feature Mix
Pros
- 24/7 heart rate and blood pressure monitoring
- On-demand blood oxygen checks
- More than 120 sport modes
- IP68 water resistance
- Includes cycle tracking and extensive daily tools
- Up to 7 days of normal use
Cons
- Blood pressure and other health features are not for medical use
- No built-in GPS is listed
- IP68 is less specific for swimming than a 5 ATM rating
Best for: users who want a broad set of health and smart features in one tracker.
The MorePro Fitness Tracker packs an unusually wide set of features into a small 40.95 by 34.05 by 10.8 millimeter body. It monitors heart rate and blood pressure around the clock, offers on-demand blood oxygen checks, and tracks deep sleep, light sleep, and wake-ups. Those readings are intended to help with health goals, not to serve as medical measurements, so they should be treated as trend information.
Its exercise coverage is broad. More than 120 sport modes cover activities such as running, walking, and other workouts, while the tracker records steps, distance, calories burned, heart rate, and training time. There is also menstrual cycle tracking with period, trying-to-conceive, and pregnancy modes. That makes it more versatile for daily wellness than the COROS armband, which is specifically designed for sports use.
MorePro also gives it a smartwatch role. It can show call, SMS, and app notifications, provide weather forecasts, control music and a phone camera, and offer a stopwatch, timer, alarm, and find-my-phone feature. The IP68 design is suitable for sweat, rain, and hand-washing. Battery life reaches up to seven days in normal use or 15 days on standby, with a full charge taking about two hours.
The weakness is the breadth of the feature list. There is no built-in GPS listed, so route tracking depends on the phone, and IP68 does not communicate the same swimming guidance as the 5 ATM rating on the Zeacool Fitness Tracker or Amzhero Health Tracker. It is a solid broad-spectrum pick for Android 7.0 and newer or iOS 13.0 and newer, but anyone seeking medical monitoring or serious GPS training should choose a more specialized device.
6. Zeacool Fitness Tracker: Best for Swimming
Pros
- 5 ATM water resistance
- AMOLED display
- Tracks heart rate, blood oxygen, blood pressure, and sleep
- Up to 10 to 14 days of regular use
- Magnetic fast charging
- Includes 25 sport modes
Cons
- Only 25 sport modes, fewer than several competing trackers
- No built-in GPS is listed
- Health readings are not presented as medical measurements
Best for: swimmers and active users who want longer battery life with basic health tracking.
The Zeacool Fitness Tracker is the most convincing water-oriented option among the small watches here. Its 5 ATM rating is clearer for swimming than the IP67 and IP68 claims on some of the other trackers, and the product says it can be worn while washing, bathing, swimming, diving, or caught in rain. Water resistance still does not make a wearable medical device, but it does make this easier to keep on during an active day.
The 1.10 inch AMOLED HD touch screen should provide a sharper, more vivid interface than a basic monochrome band. Zeacool tracks heart rate, blood oxygen, blood pressure, temperature, steps, distance, and calories, then sends the data to the Keep Health app. Sleep analysis separates deep sleep, light sleep, and awake stages and adds a nightly sleep score.
The exercise selection is narrower than the 120-plus-mode watches, with 25 sport modes that can be selected in the app. That is enough for common activities, but the number should not be mistaken for specialized training analysis. The watch also includes sedentary, water, menstrual, weather, remote photography, and phone-search reminders.
Battery life is a practical advantage. Regular use is listed at 10 to 14 days, with up to 30 days on standby, and magnetic fast charging keeps the process simple. The trade-off is the absence of listed built-in GPS and the smaller exercise library. Choose Zeacool over MorePro when 5 ATM water resistance and longer regular battery life matter more than a larger set of lifestyle features.
7. Bestinn 1.58 inch Fitness Watch: Best Large Display
Pros
- 1.58 inch high-resolution display
- Always-on display and side button
- More than 120 exercise modes
- Tracks heart rate, blood pressure, blood oxygen, and sleep
- Can use phone GPS for workout routes
- More than 250 watch face options
Cons
- Route tracking depends on a connected phone
- No standalone GPS is listed
- Health readings are for general tracking, not medical use
Best for: users who want an easy-to-read screen and many activity modes.
The Bestinn 1.58 inch Fitness Watch makes the case for a larger screen. Its 1.58 inch high-resolution display, always-on clock, full touch controls, and side button should make notifications and health readings easier to see than they are on the Fitbit Inspire 3 or Zeacool. That extra screen area also gives the watch a more conventional smartwatch feel.
Health monitoring covers 24/7 heart rate, blood pressure, and blood oxygen, along with sleep stages and wake times. The watch records steps, distance, and calories all day, while more than 120 exercise modes cover a broad range of activities. These numbers describe the available tracking categories, not clinical precision, and the product itself frames the health tools as everyday information.
The watch can display incoming calls and messages, show weather, control music, trigger a phone camera, and provide timers, alarms, breath training, and reminders. It can also use the phone's GPS connection to map an outdoor workout in the app. That is useful, but it is not the same as having GPS inside the watch. The distinction matters for runners who do not want to carry a phone.
The Bestinn's customization is a genuine differentiator. More than 250 watch faces and customizable dials let it behave more like a personal smartwatch than a fixed-purpose fitness band. The downside is that the two Bestinn listings in this roundup share the same feature set, so this version's advantage is primarily its graphite black finish as represented by the listing, not a different sensor platform. It is the right pick for readable on-wrist information, not for advanced training analysis.
8. FITVII Health Tracker: Best for Wrist Calls
Pros
- Can answer and make Bluetooth calls
- 24/7 heart rate and blood pressure tracking
- More than 120 sport modes
- Includes sleep and blood oxygen tracking
- Up to 7 days of battery life
- Guided breathing, reminders, and calculator
Cons
- IP67 water resistance is not for diving or surfing
- Calls require a connected phone
- No built-in GPS is listed
Best for: people who want a health tracker that also handles calls and daily reminders.
The FITVII Health Tracker is built around the idea that a fitness watch should handle small communication tasks as well as health data. Its Bluetooth calling feature lets you answer and make calls from the wrist, while notifications, contacts, music playback control, and phone finding reduce the number of times you need to reach for your phone.
The health side covers 24/7 heart rate and blood pressure, sleep tracking, blood oxygen, steps, distance, calories, and more than 120 sport modes. Guided breathing exercises, water reminders, sedentary alerts, menstrual tracking, and a calendar give it a practical daily rhythm. It is a better fit than the COROS Heart Rate Monitor for someone who wants a general smartwatch, but it is less focused than the Garmin Forerunner 55 for running.
FITVII lists a battery life of up to seven days, varying with use, and compatibility with Android 7 or newer and iOS 13.0 or newer through Bluetooth 5.0. The listed wrist size is 5.71 to 8.86 inches, which provides a useful fit reference for prospective buyers. There is also an AAC audio feature for Bluetooth calls and music control.
The water rating is IP67, and the product specifically says it is not suitable for diving or surfing. That makes it less flexible around water than Zeacool and Amzhero, both of which list 5 ATM water resistance. The FITVII is a sensible choice when taking calls from the wrist is central to the buying decision, but it is not the one to choose for standalone route tracking or advanced heart rate training.
9. Bestinn 1.58 inch Gold Watch: Best Customizable Watch
Pros
- 1.58 inch display with always-on clock
- More than 250 customizable watch faces
- More than 120 exercise modes
- Tracks heart rate, blood pressure, blood oxygen, and sleep
- Phone GPS connection can map outdoor workouts
- Includes calls and message notifications
Cons
- Phone GPS is required for mapped outdoor routes
- No built-in GPS is listed
- The health features are not medical tools
Best for: users who want the Bestinn feature set with a more decorative watch appearance.
The Bestinn 1.58 inch Gold Watch is effectively the style-focused counterpart to the graphite Bestinn listing above. It has the same 1.58 inch display, full touch controls, side button, and always-on clock, but the champagne gold finish gives it a more jewelry-like presentation. If the look of a watch matters as much as the dashboard, this version gives the same broad feature package a different visual identity.
Its monitoring list is extensive for a general activity tracker. The watch records 24/7 heart rate, blood pressure, blood oxygen, sleep stages, steps, distance, and calories. More than 120 exercise modes cover everyday activities, while reminders for water, movement, breathing, and menstrual cycles add routine prompts. As with the other general-purpose trackers here, these measurements should be read as wellness trends rather than medical results.
The smart features are also familiar but useful. Incoming call and message notifications appear on the watch, and it includes weather, music control, remote camera control, a timer, stopwatch, alarm, and phone finding. More than 250 watch faces and customizable dials are the strongest reason to choose it over the MorePro Fitness Tracker. The Bestinn offers more visual customization, while MorePro offers cycle modes and a smaller, lighter body.
The main limitation is the same phone dependence as the other Bestinn listing. Outdoor workout maps use connected phone GPS, so a runner who leaves the phone at home should choose the Garmin Forerunner 55. This model suits someone who wants a large, decorative screen and broad daily monitoring, with the understanding that convenience features do not turn it into a clinical monitor.
10. Amzhero Health Tracker: Best Battery Focus
Pros
- Tracks heart rate, blood oxygen, blood pressure, stress, and sleep
- 5 ATM water resistance
- Includes small and large bands
- 1.47 inch color display
- Up to 15 days of standby time
- Supports 14 listed sports and a 300mAh battery
Cons
- Fewer sports modes than the 120-plus-mode trackers
- No built-in GPS is listed
- Standby life is longer than active-use life
Best for: users who want simple health tracking, swimming support, and infrequent charging.
The Amzhero Health Tracker keeps the interface and feature list straightforward. Its 1.47 inch HD color display shows daily activity, while the tracker monitors heart rate, blood oxygen, blood pressure, stress, and sleep. Sleep analysis includes a sleep quality score, giving the app a way to connect overnight data with changes in daily habits.
This is also one of the more water-ready general trackers in the list. The 5 ATM rating supports wearing it in rain, while washing hands, and during swimming. The package includes small and large bands, which is useful for households or users who are uncertain about the fit of a single fixed strap. Fourteen listed sports include walking, running, mountaineering, swimming, yoga, hiking, cycling, treadmill, and other common activities.
The battery is the headline feature. Amzhero lists a 300mAh lithium-ion battery, charging in about two hours, with up to 15 days of standby time. That figure is not the same as continuous active use, but it still indicates a design aimed at reducing charging interruptions. Notifications for calls, texts, and social apps, along with weather and music controls, cover the basic smartwatch tasks.
The compromise is a smaller exercise library than the MorePro, Bestinn, and FITVII trackers, and there is no built-in GPS listed. The GloryFit app supports iOS 9.0 or newer and Android 6.0 or newer, giving it wider stated phone compatibility than Fitbit Inspire 3. Choose Amzhero when water resistance, two band sizes, and battery endurance matter more than training depth or a large collection of sport profiles.
How to choose best heart monitor watch
The right heart monitor watch depends on whether you want passive wellness trends, training data, or a dedicated sensor that works alongside another device.
Heart rate sensor placement
Wrist sensors are convenient because the watch is already on your arm. The Garmin Forerunner 55 and Fitbit Inspire 3 use that approach, while the COROS Heart Rate Monitor uses an armband and the Garmin HRM 600 uses a dedicated strap. A separate sensor is usually the more sensible direction for people who prioritize workout recording and want to avoid relying on a watch display.
Training and GPS
A watch with built-in GPS can record distance, pace, and routes without a phone. The Garmin Forerunner 55 is the only product here with GPS explicitly built into the watch. The Bestinn models can use a connected phone's GPS, which works well when carrying the phone is acceptable but is not a standalone alternative.
Health measurements
Heart rate, blood oxygen, blood pressure, stress, and sleep tracking appear across many of these watches. They are useful for spotting personal patterns, but the MorePro, FITVII, Bestinn, and Amzhero listings all frame their health features as lifestyle tools rather than medical equipment. A changing number should not be treated as a diagnosis.
Water resistance
The rating matters if the watch will stay on in the shower or pool. The Zeacool and Amzhero trackers list 5 ATM water resistance, while FITVII lists IP67 and specifically excludes diving and surfing. IP68 on the MorePro is useful for sweat, rain, and hand-washing, but buyers planning regular swimming should favor the products with a stated 5 ATM rating.
The most useful heart data is the data you can collect consistently, whether that means a wrist watch overnight or a dedicated sensor during every workout.
Battery and phone compatibility
Long battery life reduces gaps in daily tracking. Zeacool lists up to 10 to 14 days of regular use, MorePro and Amzhero emphasize extended endurance, and Garmin Forerunner 55 reaches up to two weeks in smartwatch mode. Check the phone requirements too. Fitbit Inspire 3 needs iOS 16.4 or higher or Android 11.0 or higher, while Amzhero lists support for iOS 9.0 or Android 6.0 and newer.
Display and daily controls
A small tracker such as Fitbit Inspire 3 keeps the wrist light and unobtrusive. The Bestinn watches use 1.58 inch displays with always-on clocks and more than 250 watch faces, making notifications and health readings easier to see. Calls, music controls, weather, reminders, and camera controls are useful extras, but they should not distract from the sensor and training features that prompted the purchase.
Frequently asked questions
Is a heart monitor watch a medical device?
The products in this roundup are intended for fitness or wellness tracking. Several listings explicitly state that their health features are not for medical use, so they should not replace a clinician's advice, a prescribed monitor, or medical testing.
Which watch has built-in GPS?
The Garmin Forerunner 55 has GPS for tracking how far, how fast, and where you run. The Bestinn watches can connect to a phone's GPS for outdoor route maps, but the phone needs to be present.
Which product is best for serious workout heart rate data?
The Garmin HRM 600 is the strongest dedicated option because it sends heart rate and HRV data, can record workouts without a watch, and supports running dynamics with compatible Garmin equipment. The COROS Heart Rate Monitor is a more comfortable armband alternative for Bluetooth-based sports tracking.
Can these watches track blood pressure?
The MorePro, Bestinn, Zeacool, FITVII, and Amzhero listings include blood pressure monitoring. Those readings are intended for general wellness trends and should not be used to diagnose or manage a medical condition.
Which option is best for sleep tracking?
The Fitbit Inspire 3 is the most sleep-focused pick. It tracks sleep automatically, provides sleep stages and a Sleep Score, includes a smart wake alarm, and adds stress and relaxation tools.
Can I swim with these heart monitor watches?
The Zeacool and Amzhero trackers list 5 ATM water resistance and specifically mention swimming. FITVII lists IP67 and says it is not suitable for diving or surfing. Always follow the product's stated water guidance rather than assuming every waterproof rating supports every activity.
What is the difference between a heart monitor watch and a heart rate monitor strap?
A watch combines heart rate tracking with a screen, notifications, activity tracking, and often sleep features. A strap or armband concentrates on workout heart rate and can send data to another device, which may suit athletes who want more focused readings or cannot wear a watch during a sport.
The bottom line
The Best heart monitor watch here is the Garmin Forerunner 55 for runners and active users who want wrist heart rate, built-in GPS, suggested workouts, and long smartwatch battery life. The Garmin HRM 600 is the better specialist tool for athletes who want HRV, stored workout data, swimming support, and running dynamics through compatible Garmin equipment.
For everyday wellness, the Fitbit Inspire 3 is the discreet choice, while the Zeacool Fitness Tracker and Amzhero Health Tracker make more sense for users who prioritize 5 ATM water resistance and longer battery intervals. The smaller general-purpose trackers are useful when broad health trends, sleep, reminders, and notifications matter more than advanced training data.
If you are undecided, choose the Forerunner 55 for running, the HRM 600 for dedicated training, and the Inspire 3 for unobtrusive daily and sleep tracking.
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