Reviews Heart Rate Variability

Sensate Relaxation Device - for Immediate Calm and Long Term Stress Resilience - with Patented Infrasonic Resonance Technology

  • INSTANT RELAXATION IN AS FEW AS 10 MINUTES - Stress less, feel better. Reported improvements: sleep quality, heart rate variability, reduced anxiety,....
  • BUILDS THE BODY’S RESILIENCE TO STRESS - Conditions the relaxation response of the vagus nerve, the brain-gut regulator of the nervous system.
  • PATENTED INFRASONIC TECHNOLOGY - this is the only product of its kind that is designed to gently soothe your nervous system using non-invasive sound....
  • SAFE AND COMFORTING - Enjoy the benefits of vagus nerve stimulation therapy without the discomfort of medical devices that send electric currents into....
  • ENGINEERED AND MANUFACTURED IN THE UK - Based on 30 years of clinical practice in integrated healthcare and five years of R&D.
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Garmin 010-N1995-00 Refurbished vivosmart 4 Activity Tracker, Small/Medium, Black/Slate

  • Stylish, smart design - This slim wristband tracker, available in multiple colors, complements your style with its distinctive design, metal trim accents and bright, easy-to-read display.
  • Pulse Ox at your wrist - the Pulse Ox sensor on vívosmart 4 estimates your body’s blood oxygen saturation level..
  • Advanced sleep monitoring - to give you an idea of how you’re sleeping, vívosmart 4 tracks your light, deep and REM stages of sleep, along with movement throughout the night..
  • Optimize your body’s energy - body battery energy monitoring on vívosmart 4 uses a combination of stress, heart rate Variability (HRV), sleep and activity data to gauge your body’s energy reserves at any moment..
  • All-day stress tracking - you most likely experience stress at some point in your day, but how much? Your vívosmart 4 lets you know when you are having a calm, balanced or stressful day and everything in between..
  • Included components: vívosmart 4 smart activity tracker, charging/data cable, manuals.
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Garmin vivosmart 4, Activity and Fitness Tracker w/ Pulse Ox and Heart Rate Monitor, Black, Large Band & Fitbit Charge 5 Advanced Fitness & Health Tracker with Built-in GPS, Stress Management Tools

  • ...exercise or should focus on recovery (Requires Fitbit Premium membership).
  • Product 2: 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.
  • Product 2: 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).
  • Product 2: 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.
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Fitbit Surge, Tangerine, Large

  • Please refer user manual for troubleshooting guide.
  • Continuous, wrist-based heart rate monitoring for workout intensity, training zones, and calorie burn with no uncomfortable chest straps.
  • Accurately track all-day activity like heart rate, steps, distance, calories burned, floors climbed and active minutes.
  • 24/7 heart rate readings to optimize health with resting heart rate and all day trends.
  • Stay connected with text and call notifications on display.
  • Sync stats wirelessly and automatically to your computer and over 100 leading smartphones.
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Casio GM-2100-1AJF G-Shock Men's Watch, Metal Cover, Black

  • ...le with dedicated cable (requires device with Type-A USB terminal). Altimeter, Barometer, Thermometer, Compass.
  • GPS signal reception: Auto receive (with no mobile link function, time information, once/day).
  • Manual receive (position information, time information), Mobile link (Wireless linking using Bluetooth ).
  • Wrist heart rate measurement (maximum measurement value: 220 bpm), Heart rate, target heart rate setting, heart rate zone graphic indication, heart rate graph, maximum heart rate, minimum heart rate.
  • Training Function: Display of DIST, speed, pace, and other calculated values based on GPS or accelerometer data, auto/manual lap times, Auto Pause, Auto Run Timing Start, target alert setting (time, altitude, calories burned) on/off, training display customization (elapsed time, distance, pace, lap time, lap DIST, lap pace, average pace, speed, average speed, calories burned, heart rate, average heart rate, road grade, elevation, cumulative ascent, cumulative descent, ascent pace, descent pace).
  • Training Analysis, Training status, fitness level trend, training load trend, VO2MAX, recovery time, Training Data (Up to 100 runs, up to 140 lap times per run) Elapsed time, distance, pace, calories burned, heart rate, maximum heart rate, aerobic training eff....
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Casio Men's G-Shock Move GBD-H2000-1BCR Quartz Watch

  • ...S, Activity Tracking, LED backlight (Super illuminator) Full auto LED light, selectable illumination duration (1.5 seconds or 5 seconds), afterglow.
  • Solar Assisted Recharging Charging system: Approx. battery operating time on after full charge: With training function (GPS, heart rate) use ex) running/walking and biking HIGH (Continuous reception): Approx. 14 hours, NORMAL (Continuous reception): Approx. 16 hours, LONG (Intermittent reception): Approx. 19 hours, Without training function (GPS, heart rate) use, Approx. 2 months without the power-saving function*, Approx. 23 months with the power-saving function*.
  • GPS + Mobile link: (Automatic Connection, Wireless linking using Bluetooth), Activities Tracking, Multi-sport (running, walking, biking, swimming, others).
  • Calculate and display distance, speed, pace, and other information using GPS or accelerometer.
  • auto pause function Training Analysis: Cardio load status.
  • Activity Log Data: Up to 100 runs with up to 200 laps each, measurement time, distance, pace, calories burned (energy source used), heart rate, maximum heart rate, cardio load, pitch, ma....
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POLAR OH1 Heart Rate Monitor Armband

  • Convenient - Embrace the freedom of Polar OH1's unmatched diversity for use in countless different sports. This optical heart rate sensor offers an easy-to-use alternative to heart rate chest straps.
  • Versatile - pair it with your favorite smart phone, iPhone or Galaxy app, your Polar watch or other training device or broadcast your heart rate data in a group environment.
  • Built-in memory - store up to 200 hours of training data.
  • Updatable - heart rate monitor contains firmware updates that enhances its functionality.
  • Rechargeable - heart rate monitor lets you enjoy 12 hours of operating time on its rechargeable battery.
  • Providing versatility, comfort and simplicity, the Polar oh1 is an optical heart rate sensor worn on the arm. Whether running, riding, or rocking a workout at the gym, this heart rate monitor armband accurately and consistently captures heart rate using P.
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G-Shock"GRAVITYMASTER Bluetooth Equipped GPS Hybrid Solar Radio Tough MVT." GPW-2000-1A2JF(Japan Import-No Warranty)

  • GPS signal reception: Auto receive (with no mobile link function, time information, once/day).
  • Manual receive (position information, time information), Mobile link (Wireless linking using Bluetooth ).
  • Wrist heart rate measurement (maximum measurement value: 220 bpm), Heart rate, target heart rate setting, heart rate zone graphic indication, heart rate graph, maximum heart rate, minimum heart rate.
  • Training Function: Display of DIST, speed, pace, and other calculated values based on GPS or accelerometer data, auto/manual lap times, Auto Pause, Auto Run Timing Start, target alert setting (time, altitude, calories burned) on/off, training display customization (elapsed time, distance, pace, lap time, lap DIST, lap pace, average pace, speed, average speed, calories burned, heart rate, average heart rate, road grade, elevation, cumulative ascent, cumulative descent, ascent pace, descent pace).
  • Training Analysis, Training status, fitness level trend, training load trend, VO2MAX, recovery time, Training Data (Up to 100 runs, up to 140 lap times per run) Elapsed tim....
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POLAR Soft Strap Set (Medium/XX-Large)

  • Comfortable chest strap for heart rate measurement.
  • The smart fusion of soft fabrics and adaptive electrodes make it extremely sensitive to your heart’s electrical signals, so the heart rate sensor can pick up your heart rate quicker and more accurately.
  • Compatible with all Polar heart rate sensors, utilizing the same snap attachment method.
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