Best Smartwatches with Heart Rate Monitor: 15 Spec-Based Picks
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Finding the best smartwatches with heart rate monitor requires looking at specific hardware details rather than general claims. We compared 15 models based strictly on the specifications published on their listings. The Apple Watch SE 3 44mm GPS leads this list because its 1.12-ounce weight offers a lightweight profile for iPhone users who prefer an always-on display. This guide helps you decide which device fits your wrist size and connectivity needs by comparing case materials, band lengths, and tracking metrics.
Choose connectivity based on your phone use
Most listed watches require your phone for data. Models like the Samsung Galaxy Watch 8 LTE and Apple Watch SE 3 GPS differ in this key spec. If you want to leave your phone behind, select a device with LTE or Cellular connectivity. For shorter runs where you keep your phone nearby, a Bluetooth or GPS-only model is sufficient and often lighter.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Apple Watch SE 3 44mm GPS Best overall | iPhone users wanting an always-on display | |
| 2 | Samsung Galaxy Watch 8 40mm LTE Also great | users wanting a lightweight LTE smartwatch | |
| 3 | Samsung Galaxy Watch Ultra 47mm LTE Also great | rugged outdoor activities with LTE needs | |
| 4 | Samsung Galaxy Watch Ultra 47mm Also great | durable titanium build with LTE | |
| 5 | Samsung Galaxy Watch Ultra 47mm Also great | outdoor enthusiasts needing LTE and durability | |
| 6 | Samsung Galaxy Watch 7 40mm LTE Best budget | users wanting a compact LTE smartwatch | |
| 7 | Samsung Galaxy Watch9 40mm LTE Best premium | Compact LTE smartwatch with sleep and heart health tracking | |
| 8 | Google Pixel Watch 3 41mm Android Best 41mm | Android users wanting compact fitness tracking | |
| 9 | Samsung Galaxy Watch 7 44mm Bluetooth Also great | Compact daily health tracking | |
| 10 | Garmin HRM 600 Heart Rate Monitor Best black | Runners using Garmin watches | |
| 11 | Samsung Galaxy Watch 7 44mm Green GPS Best green | Green-loving runners wanting detailed health data | |
| 12 | Samsung Galaxy Watch 8 40mm Bluetooth Also great | smaller wrists and basic heart rate tracking | |
| 13 | Samsung Galaxy Watch Ultra2 47mm LTE Also great | Rugged outdoor tracking and diving | |
| 14 | Google Pixel Watch 3 (45mm) Best 45mm | Android users seeking large display and running analytics | |
| 15 | Samsung Galaxy Watch Ultra 47mm LTE Also great | rugged outdoor tracking and LTE independence |
The best fit for you
- You want the best overall smartwatch for iPhone – Apple Watch SE 3 44mm GPS – The 44mm case and lightweight 1.12 ounces design suit iPhone users well.
- You need a rugged watch for outdoor diving – Samsung Galaxy Watch Ultra2 47mm LTE – The titanium build and 47mm size handle rugged outdoor activities and diving.
- You want the most compact smartwatch for smaller wrists – Samsung Galaxy Watch 8 40mm Bluetooth – The 40mm size and aluminum build fit smaller wrists comfortably.
- You want a standalone LTE watch for running – Samsung Galaxy Watch 8 40mm LTE – The LTE connectivity and lightweight 1.06 ounces design support standalone running.
- You want a durable watch for serious outdoor athletes – Samsung Galaxy Watch Ultra 47mm LTE – The titanium build and dual-frequency GPS track precise outdoor routes.
Is a Heart Rate Monitor Worth It for You?
A heart rate monitor tracks your pulse during rest and activity. This data helps you understand your physical effort and recovery. Most models in this list, including the Apple Watch SE 3 and Samsung Galaxy Watch 8, offer continuous monitoring. You see real-time metrics to adjust your pace. Some devices also track sleep heart rate for broader health insights. If you want to know your exertion levels without guessing, this feature is essential.
Worth it if
- You want to monitor exercise intensity
- You track sleep health metrics
- You need real-time pace feedback
Skip it if
- You only need basic step counting
- You prefer a minimalist device
- You do not care about pulse data
Apple Watch SE 3 44mm GPS
Best for: iPhone users wanting an always-on display
- Features
- Heart Rate Monitor
- Case Size
- 44mm
- Battery Life
- 18 hours
- Display Type
- Always-On Display
- Connectivity
- GPS
- Case Material
- Aluminum
The Apple Watch SE 3 GPS 44mm tracks your heart rate and sends alerts for irregular rhythms. It features an always-on display and 18-hour battery life. The aluminum case keeps the weight low at 1.12 ounces. This model suits iPhone users who want reliable health insights and a clear screen without the bulk of titanium builds.
- Always-on display for quick glances
- 18-hour battery life with fast charging
- Irregular heart rhythm alerts
- Lightweight 1.12-ounce aluminum build
- 18-hour battery life is shorter than typical all-day expectations
- GPS-only connectivity limits standalone use
- Aluminum case is less durable than titanium options
- You want an always-on display for easy time checks
- You prefer a lighter aluminum build over heavier metals
- You need heart rate alerts for irregular rhythms
- You require cellular connectivity for calls without your phone
- You want a more durable titanium case
- You need battery life exceeding 18 hours
Verdict: Apple Watch SE 3 GPS 44mm fits iPhone users who value an always-on display and lightweight design over long battery life or cellular independence.
Samsung Galaxy Watch 8 40mm LTE
Best for: users wanting a lightweight LTE smartwatch
- Features
- Heart Rate Monitor
- Case Size
- 40mm
- Connectivity
- LTE
- Activity
- Running
- Color
- Silver
- Tracking Features
- Heart Rate Monitoring
The Samsung Galaxy Watch 8 40mm LTE is a compact smartwatch designed for comfort and continuous connectivity. It features LTE for standalone use and includes a heart rate monitor for fitness tracking. The device weighs 1.06 ounces and measures 0.34 inches thick. Its smaller 40mm case suits users who prefer a lightweight, unobtrusive fit. It pairs with a personal AI assistant and offers running coaching features for daily activity management.
- LTE connectivity for standalone operation
- Heart rate monitor for fitness tracking
- Lightweight 1.06 ounces build
- Running Coach with real-time feedback
- Advanced Sleep Coaching features
- 40mm case size is smaller than many competitors
- 0.34-inch thickness limits internal battery capacity
- 1.06-ounce weight may feel too light for some users
- You want a lightweight smartwatch for all-day wear
- You need LTE connectivity without your phone
- You prefer a smaller 40mm case size
- You require a larger 44mm or 47mm display
- You need a rugged titanium build for extreme sports
- You prefer a heavier, more substantial watch feel
Verdict: Samsung Galaxy Watch 8 40mm LTE fits users who prioritize a lightweight, comfortable fit and standalone LTE connectivity. It is ideal for those who want heart rate monitoring and running coaching in a compact, silver case.
Samsung Galaxy Watch Ultra 47mm LTE
Best for: rugged outdoor activities with LTE needs
- Features
- Sleep Tracking, Heart Rate Monitor
- Case Size
- 47mm
- Connectivity
- LTE, GPS
- Case Material
- Titanium
- Color
- Silver
- Tracking Features
- Heart Rate Monitoring
This Samsung smartwatch features a 47mm titanium case designed for rugged outdoor use. It includes LTE and GPS connectivity for independent tracking. The device monitors your heart rate and sleep patterns. At 2.08 ounces, it offers a durable build for active lifestyles. You should consider this model if you need a robust tracker that supports cellular connections without a paired phone.
- 47mm titanium case for durability
- LTE and GPS connectivity
- Heart rate and sleep tracking
- Rugged outdoor design
- Heavier build at 2.08 ounces
- Larger 47mm case size
- You need LTE connectivity for calls and data without your phone
- You prefer a durable titanium case for outdoor activities
- You want detailed heart rate and sleep tracking metrics
- You prefer a lighter watch under 2 ounces
- You want a smaller case size under 45mm
- You do not need cellular connectivity
Verdict: Samsung Galaxy Watch Ultra 47mm LTE is a solid choice for users who need rugged durability and independent connectivity. It suits those who prioritize a titanium build and cellular features over a lightweight profile.
Samsung Galaxy Watch Ultra 47mm
Best for: durable titanium build with LTE
- Features
- Sleep Tracking, Heart Rate Monitor
- Case Size
- 47mm
- Connectivity
- LTE, GPS
- Case Material
- Titanium
- Tracking Features
- Heart Rate Monitoring
- Dimensions
- 1.87 × 1.87 × 0.48 inches
The Samsung Galaxy Watch Ultra 47mm is a titanium LTE smartwatch with GPS and a heart rate monitor. It tracks heart rate, sleep, and energy scores. The 47mm case measures 1.87 by 1.87 inches and weighs 2.08 ounces. This device suits users who want durable hardware and detailed health metrics. It offers a lightweight touchscreen interface for daily tracking.
- Titanium case material for durability
- LTE and GPS connectivity
- Heart rate and sleep tracking
- 47mm case size
- 2.08 ounces weight is higher than lighter models
- 47mm case is larger than 40mm options
- You want a durable titanium build
- You need LTE and GPS connectivity
- You prefer a 47mm display size
- You need a 40mm case size
- You want a lighter watch under 2 ounces
- You do not need LTE connectivity
Verdict: Samsung Galaxy Watch Ultra 47mm fits users who prioritize a rugged titanium build and LTE connectivity. It is a solid choice for those who want detailed heart rate and sleep tracking on a larger screen.
Samsung Galaxy Watch Ultra 47mm
Best for: outdoor enthusiasts needing LTE and durability
- Features
- Heart Rate Monitor
- Case Size
- 47mm
- Connectivity
- LTE, GPS
- Case Material
- Titanium
- Activity
- Running
- Tracking Features
- Heart Rate Monitoring
This Samsung smartwatch features a 47mm titanium case and LTE connectivity. It includes a heart rate monitor for tracking metrics during activities like running. The device weighs 2.08 ounces and offers advanced sleep coaching. Its rugged build suits outdoor use. You get GPS tracking and durable materials. This model fits those wanting a large, tough watch with cellular options.
- Titanium casing for durability
- 47mm case size
- LTE and GPS connectivity
- Heart rate monitoring
- 47mm case is larger than many competitors
- 2.08 ounces is heavier than standard models
- You prefer a larger 47mm display
- You need LTE connectivity for calls
- You want a titanium build for durability
- You prefer smaller 40mm or 41mm watches
- You want a lighter device under 2 ounces
- You do not need cellular connectivity
Verdict: Samsung Galaxy Watch Ultra 47mm LTE suits users who prioritize a rugged titanium build and larger screen size. It is ideal for those who need LTE connectivity and durable materials for outdoor activities.
Samsung Galaxy Watch 7 40mm LTE
Best for: users wanting a compact LTE smartwatch
- Features
- Sleep Tracking, Heart Rate Monitor
- Case Size
- 40mm
- Connectivity
- LTE
- Tracking Features
- Heart Rate Monitoring
- Dimensions
- 9.5 × 2 × 1.5 inches
- Weight
- 0.96 ounces
This Samsung Galaxy Watch 7 40mm LTE model features a 3nm Exynos W1000 processor for faster performance. It includes a heart rate monitor and sleep tracking. The watch weighs 0.96 ounces and has a 40mm case. It is a compact LTE smartwatch suitable for users who prefer smaller devices. The cream color adds a distinct look to the design.
- Exynos W1000 3nm processor for smooth navigation
- Integrated heart rate monitoring
- Sleep tracking capabilities
- LTE connectivity for standalone use
- 40mm case size is smaller than many competitors
- 0.96 ounces weight is light but case is compact
- You prefer a smaller 40mm watch face
- You want LTE connectivity without a phone
- You need heart rate and sleep tracking
- You need a larger display for better readability
- You prefer Android-exclusive features over Samsung ecosystem
- You want a titanium build for durability
Verdict: Samsung Galaxy Watch 7 40mm LTE fits users who want a compact LTE smartwatch with solid health tracking. It is ideal for those who prioritize a smaller form factor and fast processor performance.
Samsung Galaxy Watch9 40mm LTE
Best for: Compact LTE smartwatch with sleep and heart health tracking
- Features
- Heart Rate Monitor
- Case Size
- 40mm
- Connectivity
- LTE
- Activity
- Running
- Color
- Graphite
- Tracking Features
- Heart Rate Monitoring
The Samsung Galaxy Watch9 40mm LTE is a smartwatch focused on continuous health tracking. It features a built-in heart rate monitor and tracks sleep patterns with Vitals. The device includes LTE connectivity for calls without a phone. It also offers blood pressure calibration and an AI assistant. This model suits users who want detailed wellness insights in a compact, lightweight design.
- Built-in LTE connectivity for standalone calls and texts
- Heart Health Score tracks sleep, BMI, activity, and vascular load
- Vitals feature monitors subtle health changes during sleep
- Advanced Sleep Coaching provides personalized habit-building guidance
- Lightweight build at 1.1 ounces for comfortable daily wear
- 40mm case size is smaller than the 44mm and 47mm options available from Samsung
- Blood pressure monitoring requires calibration with a separate cuff
- Heart rate tracking is limited to standard monitoring without additional sensor details
- You prefer a compact smartwatch that is lightweight for all-day wear
- You want LTE connectivity to stay connected without your phone
- You are interested in detailed sleep coaching and health pattern tracking
- You need a larger display for easier readability
- You want blood pressure monitoring without additional calibration equipment
- You prefer a device with more extensive fitness sensor data
Verdict: Samsung Galaxy Watch9 40mm LTE fits users who prioritize a lightweight, compact design with comprehensive sleep and heart health insights. It is ideal for those who need LTE connectivity but do not require a larger screen or advanced fitness sensors.
Google Pixel Watch 3 41mm Android
Best for: Android users wanting compact fitness tracking
- Features
- Heart Rate Monitor
- Case Size
- 41mm
- Battery Life
- 24-Hour
- Case Material
- Aluminum
- Connectivity
- Wi-Fi
- Activity
- Running
The Google Pixel Watch 3 (41mm) is an Android smartwatch with a 24-hour battery life and aluminum case. It includes a heart rate monitor and Fitbit running features. The screen is 10% larger than previous models. This device suits users who want advanced fitness tracking in a compact size. It provides real-time guidance and readiness metrics based on sleep and heart rate data.
- 41mm case size for a compact fit
- 24-hour battery life for daily use
- Aluminum case material for lightweight durability
- Heart rate monitor with readiness tracking
- Fitbit advanced running features with form tracking
- 24-hour battery life is shorter than many competitors
- 41mm screen is smaller than the 44mm or 47mm options on this list
- You prefer a smaller 41mm watch face
- You use an Android phone for full compatibility
- You want dedicated running metrics and readiness scores
- You need multi-day battery life beyond 24 hours
- You want a larger display for easier reading
- You use an iPhone as your primary device
Verdict: Google Pixel Watch 3 41mm is a compact Android smartwatch with a 24-hour battery and aluminum build. It fits runners who want Fitbit guidance in a small case. This device is ideal for users prioritizing screen size and fitness data over long battery life.
Samsung Galaxy Watch 7 44mm Bluetooth
Best for: Compact daily health tracking
- Features
- Sleep Tracking, Heart Rate Monitor
- Case Size
- 44mm
- Connectivity
- Bluetooth
- Color
- Silver
- Tracking Features
- Heart Rate Monitoring
- Dimensions
- 1.75 × 1.75 × 0.38 inches
The Samsung Galaxy Watch 7 44mm Bluetooth is a compact smartwatch designed for daily health monitoring. It features heart rate tracking with AI movement filtering for accuracy. The device includes an Energy Score to gauge daily readiness and sleep tracking with apnea detection. Weighing 1.19 ounces, it offers a lightweight fit. This model suits users who prefer a smaller display and Bluetooth-only connectivity for their phone.
- 44mm case size for a compact wrist fit
- Heart rate tracking with Galaxy AI movement filtering
- Energy Score calculates physical readiness based on prior activity
- Sleep tracking detects moderate to severe sleep apnea
- Bluetooth-only connectivity lacks independent cellular calls
- 44mm display is smaller than the 47mm options available
- 1.19 ounce weight is lighter but offers less heft than titanium models
- You want a smaller 44mm display for comfort
- You prefer Bluetooth connectivity to save battery
- You need sleep apnea detection features
- You require LTE for calls without your phone
- You prefer a larger 47mm screen for readability
- You want a titanium case for durability
Verdict: Samsung Galaxy Watch 7 44mm Bluetooth fits users who prioritize a compact size and accurate heart rate data over cellular independence. It is ideal for those who keep their phone nearby and value sleep insights.
Garmin HRM 600 Heart Rate Monitor
Best for: Runners using Garmin watches
- Features
- Heart Rate Monitor
- Battery Life
- Up to 2 months
- Activity
- Running
- Color
- Black
- Tracking Features
- Heart Rate Monitoring
- Dimensions
- 0.4 × 2.7 × 1.2 inches
The Garmin HRM 600 is a chest strap heart rate monitor designed for data-driven athletes. It sends real-time heart rate and HRV data to compatible Garmin smartwatches. The device tracks running dynamics like stride length and vertical oscillation. It features a machine-washable strap in XS-S size. Battery life lasts up to 2 months. It syncs daily metrics to the Garmin Connect app.
- Tracks heart rate, HRV, and running dynamics
- Machine-washable strap for easy maintenance
- Up to 2 months of battery life
- Syncs data to Garmin Connect app
- Requires compatible Garmin smartwatch for full dynamics
- Only available in XS-S size option listed
- Does not track GPS location directly
- You run and want precise running dynamics
- You prefer a chest strap over wrist sensors
- You use a Garmin smartwatch for data
- You need built-in GPS tracking
- You do not have a compatible Garmin watch
- You require a wrist-worn device
Verdict: The Garmin HRM 600 Heart Rate Strap is ideal for runners who need detailed biomechanical data. It fits athletes who already own a compatible Garmin watch and want accurate heart rate metrics.
Samsung Galaxy Watch 7 44mm Green GPS
Best for: Green-loving runners wanting detailed health data
- Features
- Sleep Tracking, Heart Rate Monitor
- Case Size
- 44mm
- Connectivity
- GPS
- Color
- Green
- Tracking Features
- Heart Rate Monitoring
This Samsung Galaxy Watch 7 features a 44mm case and GPS connectivity. It tracks heart rate, sleep, and energy scores using Galaxy AI. The green aluminum design offers a distinct look. It suits users who want detailed health metrics and performance comparisons for runs or rides. The GPS model connects to your phone for analysis.
- 44mm case size for clear readability
- GPS connectivity for location tracking
- Heart rate monitoring with movement filtering
- Sleep apnea detection capability
- Personalized energy score based on daily activity
- GPS-only connectivity requires phone for calls
- 44mm size is larger than 40mm alternatives
- Aluminum case is lighter than titanium options
- You prefer a green color option
- You want detailed sleep and heart data
- You need GPS for outdoor tracking
- You need LTE for standalone calls
- You prefer a smaller 40mm wrist
- You want a titanium build
Verdict: Samsung Galaxy Watch 7 44mm Green GPS is a solid choice for runners who want accurate heart rate data and a unique color. It fits those who prioritize health insights over standalone connectivity.
Samsung Galaxy Watch 8 40mm Bluetooth
Best for: smaller wrists and basic heart rate tracking
- Features
- Heart Rate Monitor
- Case Size
- 40mm
- Connectivity
- Bluetooth
- Case Material
- Aluminum
- Activity
- Running
- Color
- Silver
The Samsung Galaxy Watch 8 in 40mm aluminum is a compact smartwatch designed for smaller wrists. It includes a heart rate monitor to track your pulse during daily activities and workouts. The Bluetooth connectivity keeps you linked to your phone for calls and messages. This renewed model offers a modern, minimalist look with a silver finish. It suits users who prefer a lightweight device for fitness tracking without the bulk of larger cases.
- 40mm case size fits smaller wrists comfortably
- Built-in heart rate monitor for activity tracking
- Silver aluminum construction with a minimalist aesthetic
- Bluetooth connectivity for smartphone notifications
- 40mm case is smaller than the 44mm and 47mm options on this list
- Bluetooth-only connectivity excludes standalone LTE calls
- Aluminum build is less durable than titanium models
- You have smaller wrists and need a compact fit
- You want heart rate monitoring for running and daily steps
- You prefer a lightweight aluminum watch over heavier metals
- You need LTE connectivity for calls without your phone
- You prefer a larger 44mm or 47mm display
- You want a rugged titanium casing for intense durability
Verdict: Samsung Galaxy Watch 8 40mm Bluetooth is a practical pick for users with smaller wrists who prioritize heart rate tracking and a lightweight aluminum design. It fits best if you stay connected via Bluetooth and do not need the larger screen real estate of bigger models.
Samsung Galaxy Watch Ultra2 47mm LTE
Best for: Rugged outdoor tracking and diving
- Features
- Heart Rate Monitor
- Case Size
- 47mm
- Connectivity
- LTE
- Water Resistance
- 100m
- Case Material
- Titanium
- Activity
- Running
This rugged LTE smartwatch features a 47mm titanium case and 100m water resistance. It includes a heart rate monitor and EN13319-certified dive computer. The display reaches 5,000 nits for outdoor visibility. You get instant AI assistance and cellular connectivity. It suits those who need durable tracking for running or diving.
- 100m water resistance rating
- EN13319-certified dive computer
- 5,000-nit display brightness
- Titanium case material
- 2.08-ounce weight
- 47mm case size
- You need LTE connectivity for phone-free runs
- You dive and require certified depth tracking
- You want a bright outdoor display
- You prefer a lighter wrist device
- You want a smaller 40mm fit
- You do not need cellular service
Verdict: Samsung Galaxy Watch Ultra2 47mm LTE is a heavy, large-diameter tracker for serious outdoor athletes. It fits divers and runners who prioritize rugged durability and bright visibility over slim comfort.
Google Pixel Watch 3 (45mm)
Best for: Android users seeking large display and running analytics
- Features
- Heart Rate Monitor
- Case Size
- 45mm
- Battery Life
- 24 hours
- Case Material
- Aluminum
- Connectivity
- Wi-Fi
- Activity
- Running
The Google Pixel Watch 3 (45mm) is an Android smartwatch with a 45mm aluminum case. It features heart rate monitoring, readiness tracking, and cardio load metrics. The screen is twice as bright as previous models. Battery life lasts 24 hours. It suits runners who want real-time form guidance and personalized recommendations powered by Fitbit and Google AI.
- 45mm case size offers a 40% larger screen
- Heart rate monitoring with cardio load tracking
- Readiness metrics based on sleep and resting heart rate
- Real-time running form guidance
- Aluminum case construction
- 24-hour battery life is shorter than many competitors
- Wi-Fi connectivity only in this specific variation
- Android compatibility limits use with iPhones
- You use an Android phone
- You want a larger 45mm display
- You focus on running metrics
- You need multi-day battery life
- You use an iPhone
- You require LTE connectivity
Verdict: The Google Pixel Watch 3 45mm fits Android users who prioritize a large, bright screen and detailed running analytics over long battery life. It is a solid choice for runners who want real-time form data and readiness insights.
Samsung Galaxy Watch Ultra 47mm LTE
Best for: rugged outdoor tracking and LTE independence
- Features
- Heart Rate Monitor
- Case Size
- 47mm
- Connectivity
- LTE, GPS
- Case Material
- Titanium
- Water Resistance
- 10ATM
- Activity
- Running
This Samsung Galaxy Watch Ultra is a 47mm LTE smartwatch built with a titanium casing. It includes a heart rate monitor and dual-frequency GPS for precise tracking. The device offers 10ATM water resistance and features an advanced sleep coaching system. Its titanium construction and large 47mm size make it suitable for users who need durability and a prominent display for outdoor activities.
- Titanium casing for enhanced durability
- 10ATM water resistance rating
- Dual-frequency GPS for accurate location tracking
- Heart rate monitoring capabilities
- 47mm case size is larger than many competitors
- 2.13-ounce weight is heavier than standard models
- You need a rugged titanium build for outdoor sports
- You prefer a larger 47mm display for readability
- You require LTE connectivity for standalone use
- You prefer a lighter, smaller wrist profile
- You want a device under 2 ounces in weight
- You only need Bluetooth connectivity without LTE
Verdict: Samsung Galaxy Watch Ultra 47mm LTE fits users who prioritize a durable titanium build and precise dual-frequency GPS tracking over a lightweight design.
Specifications side by side
| Spec | Apple Watch SE 3 44mm GPS | Samsung Galaxy Watch 8 40mm LTE | Samsung Galaxy Watch Ultra 47mm LTE | Samsung Galaxy Watch Ultra 47mm | Samsung Galaxy Watch Ultra 47mm | Samsung Galaxy Watch 7 40mm LTE | Samsung Galaxy Watch9 40mm LTE | Google Pixel Watch 3 41mm Android | Samsung Galaxy Watch 7 44mm Bluetooth | Garmin HRM 600 Heart Rate Monitor | Samsung Galaxy Watch 7 44mm Green GPS | Samsung Galaxy Watch 8 40mm Bluetooth | Samsung Galaxy Watch Ultra2 47mm LTE | Google Pixel Watch 3 (45mm) | Samsung Galaxy Watch Ultra 47mm LTE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Case Size | 44mm | 40mm | 47mm | 47mm | 47mm | 40mm | 40mm | 41mm | 44mm | – | 44mm | 40mm | 47mm | 45mm | 47mm |
| Battery Life | 18 hours | – | – | – | – | – | – | 24-Hour | – | Up to 2 months | – | – | – | 24 hours | – |
| Display Type | Always-On Display | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Connectivity | GPS | LTE | LTE, GPS | LTE, GPS | LTE, GPS | LTE | LTE | – | Bluetooth | – | GPS | Bluetooth | LTE | – | LTE, GPS |
| Case Material | Aluminum | – | Titanium | – | Titanium | – | – | Aluminum | – | – | – | Aluminum | – | Aluminum | Titanium |
| Water Resistance | – | – | – | – | – | – | – | – | – | – | – | – | 100m | – | 10ATM |
| Features | Heart Rate Monitor | Heart Rate Monitor | Sleep Tracking, Heart Rate Monitor | Sleep Tracking, Heart Rate Monitor | Heart Rate Monitor | Sleep Tracking, Heart Rate Monitor | Heart Rate Monitor | Heart Rate Monitor | Sleep Tracking, Heart Rate Monitor | Heart Rate Monitor | Sleep Tracking, Heart Rate Monitor | Heart Rate Monitor | Heart Rate Monitor | Heart Rate Monitor | Heart Rate Monitor |
| Activity | – | Running | – | – | Running | – | Running | Running | – | Running | – | Running | Running | Running | Running |
| Color | Starlight Aluminum Case with Starlight Sport Band | Silver | Silver | Titanium Gray | Titanium Blue | Cream | Graphite | Polished Silver Aluminum Case – Porcelain Band | Silver | Black | Green | Silver | Titanium Gray | Matte Black Aluminum Case – Obsidian Band | Titanium Silver |
| Size | 44mm case + Medium/Large band | 40mm | 47Mm | 47Mm | 47Mm | 40mm | 40mm | 41Mm | 44Mm | X-Small-Small | 44Mm | 40mm | 47Mm | 45Mm | 47Mm |
| Tracking Features | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring | Heart Rate Monitoring |
| Compatibility | – | – | – | – | – | – | – | Android | – | – | – | – | – | Android | – |
| Tracked Metrics | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate | Heart Rate |
| Dimensions | 9.4 × 3 × 1.2 inches | 1.68 × 1.59 × 0.34 inches | 1.87 × 1.87 × 0.48 inches | 1.87 × 1.87 × 0.48 inches | 6 × 4 × 4 inches | 9.5 × 2 × 1.5 inches | – | 1.34 × 3.19 × 9.45 inches | 1.75 × 1.75 × 0.38 inches | 0.4 × 2.7 × 1.2 inches | – | – | – | 9.49 × 3.23 × 1.46 inches | 7.44 × 2.76 × 2.13 inches |
| Weight | 1.12 ounces | 1.06 ounces | 2.08 ounces | 2.08 ounces | 2.08 ounces | 0.96 ounces | 1.1 ounces | 61.4 grams | 1.19 ounces | 2.2 ounces | – | – | 2.08 ounces | 0.64 ounces | 2.13 ounces |
| Model | MEHJ4LW/A | L325U | L705U | Galaxy Watch Ultra | L705U | Galaxy Watch7 | SM-L345UZKQXAA | – | SM-L310NZSAXAA | 010-13383-01 | SM-L305FZGADBT | SM-L320NZSCXAA | SM-L715UZKQXAA | GY96V | SM-L705UZSQXAA |
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How We Selected These Watches
We identified these 15 smartwatches by scanning Amazon listings for the specific feature: Heart Rate Monitor. We only included devices where the listing explicitly stated this capability in the title or feature list. This ensures every pick actually tracks your heart rate as advertised. We did not handle any units or run independent tests. All details come directly from the published specifications on the product pages.
We ordered the list by availability first. Next, we used the listing's overall rating weighted by the number of ratings. Finally, we considered how many guide criteria the specs met. This method keeps the most relevant and popular options at the top. You can trust this order reflects current market data and verified feature presence.
Key Specs for Heart Rate Watches
Check Case Material
Your daily wear habits should dictate the case material. Aluminum offers a lightweight feel, as seen in the Apple Watch SE 3 at 1.12 ounces. Titanium provides rugged durability for outdoor activities. The Samsung Galaxy Watch Ultra 47mm uses titanium to withstand harsh conditions. Choose aluminum for comfort and titanium for toughness. This choice affects both weight and longevity.
Select Connectivity Type
Decide if you need standalone connectivity. Most watches rely on Bluetooth or Wi-Fi to sync data with your phone. The Samsung Galaxy Watch 8 LTE allows you to leave your phone behind. The Apple Watch SE 3 GPS requires your iPhone nearby. If you run without your phone, pick an LTE model. Otherwise, Bluetooth suffices for standard tracking needs.
Match Size to Wrist
Wrist size determines comfort and sensor accuracy. Smaller wrists benefit from the 40mm Samsung Galaxy Watch 8. Larger wrists may prefer the 47mm Samsung Galaxy Watch Ultra. The Google Pixel Watch 3 45mm offers a middle ground. Ensure the band fits securely to maintain heart rate accuracy. A loose fit can cause reading errors during movement. Check the listed size carefully.
Verify Compatibility
Ensure the watch works with your phone. The Google Pixel Watch 3 41mm is compatible only with Android devices. Apple Watch models work best with iPhones. Samsung Galaxy watches support both but offer full features on Android. Check the compatibility spec before buying. Mismatched ecosystems can limit functionality. This step prevents purchasing a device that cannot sync properly.
Consider Activity Needs
Your primary activity influences feature selection. Runners may want detailed running coaching. The Samsung Galaxy Watch 8 LTE includes running coaching features. The Garmin HRM 600 provides biomechanical data for serious athletes. Casual users might only need basic heart rate monitoring. Match the tracking features to your routine. This ensures you get relevant data without unnecessary complexity.
Frequently asked questions
Does the Apple Watch SE 3 have an always-on display?
Yes, the Apple Watch SE 3 features an always-on display. This allows you to check the time and notifications without raising your wrist. The 44mm aluminum case weighs 1.12 ounces. It pairs with a Starlight Sport Band for comfortable daily wear.
Can I use these watches without my phone?
Some models support standalone connectivity. The Samsung Galaxy Watch 8 LTE and Galaxy Watch 9 LTE include LTE and cellular options. These allow you to leave your phone behind while still tracking heart rate. Other models like the Pixel Watch 3 rely on Wi-Fi and require your phone nearby.
Which heart rate monitor is best for runners?
The Garmin HRM 600 is ideal for runners using compatible Garmin watches. It provides detailed biomechanical data via a chest strap. For smartwatches, the Samsung Galaxy Watch 8 LTE offers running coaching. The Google Pixel Watch 3 45mm also provides real-time form data for Android users.
Are there lightweight options for smaller wrists?
Yes, several models prioritize a compact and light design. The Samsung Galaxy Watch 7 40mm Bluetooth weighs only 0.96 ounces. The Samsung Galaxy Watch 8 40mm Bluetooth is another practical pick for smaller wrists. Both offer heart rate monitoring in a lightweight aluminum package.
Do these watches track sleep as well as heart rate?
Most listed models include sleep tracking features. The Samsung Galaxy Watch 8 LTE and Galaxy Watch 9 LTE provide comprehensive sleep insights. The Apple Watch SE 3 focuses on heart rate monitoring. Check the specific attributes to confirm if sleep tracking is included in your chosen model.
What case material is best for outdoor activities?
Titanium is the recommended material for rugged outdoor use. The Samsung Galaxy Watch Ultra 47mm LTE features a durable titanium build. It suits divers and runners who need resilience. The 47mm size ensures bright visibility. Aluminum options like the Apple Watch SE 3 are lighter but less rugged.
Is the Google Pixel Watch 3 compatible with iPhones?
No, the Google Pixel Watch 3 is designed for Android devices. Its attributes list Android compatibility. It features Wi-Fi connectivity and heart rate monitoring. iPhone users should look at the Apple Watch SE 3 instead, which is optimized for that ecosystem and includes an always-on display.
How accurate is the heart rate data on these watches?
The listings explicitly state these devices track heart rate. The Garmin HRM 600 strap offers precise metrics for athletes. Smartwatches like the Samsung Galaxy Watch 7 44mm provide accurate data for daily health tracking. The specific sensor technology varies by model, so check the detailed attributes for your needs.
See also
- Google Smartwatches: 11 Picks Ranked by Specs
- Best Samsung Smartwatches with Bluetooth: 12 Spec-Based Picks
- Best Apple Titanium Smartwatches in 2026: 12 Picks
- 12 Best Garmin 42mm Smartwatches, Compared
- Best Garmin Smartwatches for Multisport: 12 Spec-Based Picks
- Best Garmin Smartwatches Under $1000 in 2026: 12 Picks