Reviews Heart Rate Variability Tracking

Fitbit Charge 5 Advanced Fitness & Health Tracker with Built-in GPS, Stress Management Tools, Sleep Tracking, 24/7 Heart Rate and More, Lunar White/Soft Gold, One Size (S &L Bands Included)

  • See how jewelry gets smart with a tracker that doubles as a timeless accessory and features a vibrant color display.
  • Get better sleep to power your days with sleep tracking and sleep Score in the Fitbit app.
  • Feel a Buzz when you reach your target heart rate zones, while you earn active zone minutes.
  • 6-month trial of Fitbit Premium (New and returning Premium members only. Must activate trial within 60-days of device activation. Requires valid payment method. Cancel before end of trial to avoid recurring fees. Content and features may change. Terms & Conditions apply).
  • Maximize your exercise, understand resting heart rate trends and better estimate calorie burn with 24/7 Heart rate tracking.
  • Tune in to your body with health metrics like breathing rate, heart rate variability and more (in-app only)​.
  • Enjoy up to 5 days of battery without having to stop for a charge (varies with use and other factors).
  • Connect Luxe to your phone’s GPS & see real-time pace and distance on your wrist.
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COOSPO Heart Rate Monitor Armband HW807, Bluetooth 5.0 ANT+ HRM with HR Zone LED Indicator, Tracking Heartbeat HRV for Fitness Training, Work with Peloton/Polar/Wahoo/Strava/Zwift/DDP Yoga

  • ...so can track and capture training zones and calories burned on your smartphone or tablet with compatible training apps..
  • ✅HEART RATE ZONE TRACKING: Coospo heart rate monitor armband HW807 can monitor HR zones with different color LED light, let you see your exercise status more intuitively. Also support heart rate variability (HRV) function..
  • ✅COMPATIBLE with BLUETOOTH5.0 & ANT+: Great for work with smartphones,Garmin, Wahoo sport watches/gps bike computers/fitness equipments and many other devices which support Bluetooth4.0 & ANT connection..
  • ✅RECOMMENDED APP: CooSpo Bluetooth heart rate armband can works well with APP like Wahoo Fitness/Strava/Polar Beat/DDP Yoga/HR monitor/CooSporide and more than 200 APPs..
  • ✅COMPATIBLE with GPS BIKE COMPUTER: With heart rate ANT+ bluetooth function, HW807 armband worked well with Garmin/Wahoo/CooSpo/XOSS and other brand bike computers. Enjoy your riding with coospo armband heart rate monitor..
  • ✅COMPATIBLE with Sports Watches: CooSpo armband heart rate monitor also can works with most BLE / ANT+ sports watches, provide more accurate heart rate data for your training..
  • ✅COMPATIBLE with GYM EQUIPMENTS: HW807 armband heart rate monitor support directly work with Peloton bike, Concept2, Nordic treadmill, Bowflex....
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Garmin HRM-Tri Heart Rate Monitor

  • COMPACT AND COMFORTABLE – HRM-Tri is the smallest and lightest heart rate monitor from Garmin. Designed with rounded edges and no exposed seams, the strap remains comfortable during extended hours of training..
  • SWIM HEART RATE1 – Stores up to 20 hours of heart rate data during swims, then forwards it to a compatible device at the end of the session. It also sends real-time heart rate to the watch when the monitor is out of the water.
  • RUNNING DYNAMICS2 – Provides feedback on running form by measuring cadence, vertical oscillation and ground contact time when paired with a compatible device.
  • BATTERY LIFE – Lasts for 10 months (assuming 1 hour/day use) with user-replaceable CR2032 battery..
  • Includes – HRM-Tri, manuals. Supports heart rate variability and advanced heart rate features.
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Scosche Rhythm 24 Heart Rate Monitor Black

  • HYPER-ACCURATE - Patented optical sensor technology for highly accurate monitoring and measurement. Green + Yellow Optical Sensors Provide superior measurement with all skin tones..
  • WORKS WITH VIRTUALLY ANY DEVICE - Great for use with smartphones, tablets, smart and sport watches, exercise equipment and many other devices that support Bluetooth Smart or ANT+ heart rate data..
  • 24 HOUR BATTERY LIFE - Extended use rechargeable battery allows you to workout for up to 24 continuous hours..
  • CUSTOMIZABLE - Change HR zones and modes in the RhythmSync app. Modes include Heart Rate Only, Running (Cadence + Distance), Cycling (Cadence), Swimming, Heart Rate Variability (HRV)..
  • INTERCONNECTED ARMBAND DESIGN - The Rhythm24 has an updated quick-lock interconnected armband design to keep the Rhythm24 securely attached to your arm during intense workouts..
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Among Gods and Monsters (Fallen Gods Series Book 2)

  • Inspire 3 is the tracker that helps you find your energy, do what you love and feel your best. All you have to do is wear it.
  • Move more: Daily Readiness Score(1), Active Zone Minutes, all-day activity tracking and 24/7 heart rate, 20+ exercise modes, automatic exercise tracking and reminders to move.
  • Stress less: always-on wellness tracking, daily Stress Management Score, mindfulness sessions, relax breathing sessions, irregular heart rhythm notifications(2), SpO2(3), menstrual health tracking, resting heart rate and high/low heart rate notifications.
  • Sleep better:  automatic sleep tracking, personalized Sleep Profile(1), daily detailed Sleep Score, smart wake vibrating alarm, sleep mode.
  • Comfortably connected day and night: calls, texts & smartphone app notifications(4), color touchscreen with customizable clock faces, super lightweight and water resistant to 50 meters, up to 10 day battery life(5).
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Withings ScanWatch - Hybrid Smartwatch with ECG, Heart Rate Sensor and Oximeter (Black, 38mm)

  • ELECTROCARDIOGRAM* — The watch and heart rate monitor watch detects atrial fibrillation or normal heart rhythm in just 30 seconds via ECG..
  • SLEEP TRACKING — Sleep tracker delivers a Score based on light and deep sleep cycles, sleep duration & wake-ups..
  • HEART RATE TRACKING — Track heart rate continuously during workouts to optimize training, and monitor daily and overnight heart rate to help improve health over time..
  • WRIST-BASED OXIMETRY — Provides on demand oxygen saturation level (SpO2) in just 30 seconds.
  • WATERPROOF watch - waterproof watch for swimming. Water resistance up to 50m..
  • 24/7 ACTIVITY TRACKING — Dedicated workout metrics, Fitness Level via VO₂max estimation, connected GPS, elevation and step tracker. Great as a running watch..
  • DURABLE DESIGN — Combined heart rate and SpO2 sensor, 3 electrodes, an altimeter, a sapphire glass and a PMOLED screen featuring a rechargeable battery that lasts up to 30 days..
  • "30 DAY RECHARGEABLE BATTERY LIFE - Up to 30 days with normal use. +20 additional days in power reserve mode (time and activity tracking only). Charging Cable incl.".
  • HIGHLY COMPATIBLE - Smart watch with text and call. Connects effortlessly with Android &Apple iOS smartphones via free Healthmate App..
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Garmin HRM-Pro Plus, Premium Chest Strap Heart Rate Monitor, Captures Running Dynamics & HRM-Pro, Premium Heart Rate Monitor Chest Strap, Real-Time Heart Rate Data and Running Dynamics, Black

  • Premium heart rate strap transmits accurate real-time heart rate and heart rate variability data via ANT+ technology and BLUETOOTH Low Energy technology to Garmin devices, compatible fitness equipment, the Tacx Training app and other apps.
  • Captures running dynamics, such as vertical oscillation, ground contact time, stride length, vertical ratio and more to help improve your form and enable running power on your compatible Garmin watch.
  • Computes pace and distance for treadmill or indoor track workouts.
  • Stores heart rate data during swimming or other activities out of range of your watch then automatically sends the data to your compatible Garmin watch when the activity is finished.
  • Premium heart rate strap transmits real-time heart rate data via ANT technology and BLUETOOTH Low Energy technology to communicate with Garmin devices, compatible fitness equipment and online training apps, such as Zwift.
  • Captures running dynamics, such as vertical oscillation, ground contact time, stride length, vertical ratio and more.
  • Stores heart rate data during swimming or other activities out of range of your Garmin watch then automatically sends data to the watch when the activity is finished.
  • Stores steps, calories, intensity minutes and heart rate then syncs to your com....
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Scosche Rhythm 24 Bundle - Including Rhythm 24, Charge Case, Gray Replacement Strap, and Extra Charger

  • HYPER-ACCURATE - Patented optical sensor technology for highly accurate monitoring and measurement. Green + Yellow Optical Sensors Provide superior measurement with all skin tones..
  • WORKS WITH VIRTUALLY ANY DEVICE - Great for use with smartphones, tablets, smart and sport watches, exercise equipment and many other devices that support Bluetooth Smart or ANT+ heart rate data..
  • 24 HOUR BATTERY LIFE - Extended use rechargeable battery allows you to workout for up to 24 continuous hours..
  • CUSTOMIZABLE - Change HR zones and modes in the RhythmSync app. Modes include Heart Rate Only, Running (Cadence + Distance), Cycling (Cadence), Swimming, Heart Rate Variability (HRV)..
  • INTERCONNECTED ARMBAND DESIGN - The Rhythm24 has an updated quick-lock interconnected armband design to keep the Rhythm24 securely attached to your arm during intense workouts..
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Fitbit Charge 5 Advanced Fitness & Health Tracker with Built-in GPS, Stress Management Tools, Sleep Tracking, 24/7 Heart Rate and More, Black/Graphite, One Size (S &L Bands Included)

  • ... if you’re ready to exercise or should focus on recovery (Requires Fitbit Premium membership).
  • Get a daily Stress Management Score showing your body’s response to stress and take steps to improve your levels with an on-wrist EDA sensor mindfulness session.
  • With the Health Metrics dashboard, track SpO2, heart rate variability, skin temperature variation and more (Not intended to diagnose or treat any medical condition and should not be relied on for any medical purposes. It is intended to provide information that can help you manage your well-being).
  • See your real-time pace & distance without your phone using built-in GPS during outdoor activity, then see a map of your workout route in the Fitbit app.
  • Includes a 6-month Premium membership complete with personalized insights, advanced analytics, guided programs and more (New & returning Premium users only. Valid payment method required. Content and features may change).
  • Your stats come to life on a new color touchscreen that’s two times brighter than Charge 4 in daylight, all with up to 7-day battery (varies with use and other factors).
  • Track calorie burn and optimize workouts with 24/7 heart rate tracking and Active Zone Minutes, which guide you toward your desired intensity level.
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Scosche Rhythm 24 Heart Rate Monitor Armband and Bluetooth Wireless Earbuds Sport Bundle (Blue)

  • HYPER-ACCURATE - Patented optical sensor technology for highly accurate monitoring and measurement. Green + Yellow Optical Sensors Provide superior measurement with all skin tones..
  • WORKS WITH VIRTUALLY ANY DEVICE - Great for use with smartphones, tablets, smart and sport watches, exercise equipment and many other devices that support Bluetooth Smart or ANT+ heart rate data..
  • 24 HOUR BATTERY LIFE - Extended use rechargeable battery allows you to workout for up to 24 continuous hours..
  • CUSTOMIZABLE - Change HR zones and modes in the RhythmSync app. Modes include Heart Rate Only, Running (Cadence + Distance), Cycling (Cadence), Swimming, Heart Rate Variability (HRV)..
  • DURABLE AND PORTABLE EARBUDS: Certified IPX4 rated provides protection from sweat and splashes of water, these Bluetooth earbuds give you wireless freedom of up to 33 feet from your device.
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