Reviews Sleep Tracking Devices

SAMSUNG Galaxy Watch 5 Pro 45mm LTE Smartwatch w/ Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Titanium Frame, GPS Route Tracking, US Version, Gray

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: With its improved battery life, it’s built to keep going on lengthy adventures in the great outdoors.
  • ***** Do more on your adventures with synced Galaxy devices that work in perfect harmony******.
  • SAPPHIRE CRYSTAL GLASS & TITANIUM CASE: From hiking to rock climbing, its 2x stronger,***** sapphire crystal glass display is ready for intense activities in rough outdoor environments.
  • And with its super-tough titanium case, you can train worry-free.
  • GPS ROUTE TRACKING & TRACK BACK: All-new Route Tracking lets you follow GPX-format routes on your Watch.
  • Use Track Back to help you back to the place you started from.
  • Stay on track thanks to voice- or vibration-guided turn....
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Maizad 3D Pedometer with Clip, Walking Step Counter with Large Display for Men Women Kids, Track Steps and Miles/Km Calories Burned (Clock, Calorie, Distance), Black

  • 【Multifunction Watch】This 0.96-inch smart watch provides a variety of functions, including: Clock display, Vibrating Alarm, Heart Rate Tracking, Sleep Tracking， Activity Tracking, Sedentary Reminders, Phone Notifications, Message Alerts, Remote Shutter, Phone Finder and more..
  • 【Upgraded Version Smart Watch】 The new version of the watch uses the latest Nordic nRF52832 chip, the data is more accurate. Comparing with the previous styles of heart rate and blood pressure monitoring, this version has more temperature and blood oxygen detection functions, which are new functions added on the market..
  • 【Sleep Tracking】 This upgraded version smart watch can track your wakefulness, deep sleep, light sleep and rapid eye movement sleep, so you can better understand the quality of your sleep at home. If there are any problems with the use or function of the product, or if the product is defective/damaged, please contact the seller first, we will do our best to solve the problem for you.
  • 【Wide Adaptability】The fitness tracker supports an Android and iOS mobile devices to install APP, you can check your personal sleep and heart rate and other health data anytime and anywhere. (Requirement version: iOS 8.0 and Android 4.4 and above).
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SAMSUNG Galaxy Watch 5 44mm Bluetooth Smartwatch w/ Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Enhanced GPS Tracking, US Version, Silver Bezel w/ White Band

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: Meet the watch that goes as long as you do.
  • Galaxy Watch5’s improved battery keeps up with your busiest day***** Do more with synced Galaxy devices that work in perfect harmony******.
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SAMSUNG Galaxy Watch 5 40mm Bluetooth Smartwatch w/ Body Health Fitness and Sleep Tracker Improved Battery Sapphire Crystal Glass Enhanced GPS Tracking US Version Silver Bezel w/ Purple Band

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: Meet the watch that goes as long as you do.
  • Galaxy Watch5’s improved battery keeps up with your busiest day***** Do more with synced Galaxy devices that work in perfect harmony******.
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SAMSUNG Galaxy Watch 5 44mm Bluetooth Smartwatch w/Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Enhanced GPS Tracking, US Version, Gray

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: Meet the watch that goes as long as you do.
  • Galaxy Watch5’s improved battery keeps up with your busiest day***** Do more with synced Galaxy devices that work in perfect harmony******.
  • SAPPHIRE CRYSTAL GLASS: Galaxy Watch5 can stand the test of the hardest days.
  • Its sapphire crystal glass face is 1.6x stronger, resisting the problems that come with life’s daily routines*****.
  • Now you can wander all you want and still know where you are.
  • Galaxy Watch5 features enhanced GPS with voice navigation right on your wrist.
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Garmin Vivosmart 4, Activity and Fitness Tracker w/ Pulse Ox and Heart Rate Monitor, Black

  • Slim, smart activity tracker blends fashionable design with stylish metal accents and a bright, easy to read display.
  • Includes advanced sleep monitoring with REM sleep and can gauge blood oxygen saturation levels during the night with the wrist based Pulse Ox sensor. (Not a medical device and not intended for use in the diagnosis or monitoring of any medical condition).
  • Fitness and health monitoring tools include estimated wrist based heart rate, all day stress tracking, Relaxation breathing timer, Vo2 Max, body battery energy monitor and more.
  • Features dedicated activity timers for walks, runs, strength training, yoga, pool swims and others.
  • Lens material: Polycarbonate. Strap material: Silicone. Compatible Devices VIRB Ultra 30 , VIRB XVIRB X and VIRB XEVIRB XE.
  • Get vibration alerts for All notifications, including calls, text messages and more (text replies available for Android device users). Display resolution: 48 x 128 pixels.
  • Lasts up to 7 days (excluding pulse ox sleep tracking) and is safe for swimming and showering, too.
  • Connect to your compatible smartphone’s GPS so you can get accurate tracking during outdoor walks and runs.
  • Small/medium Band: 15 x 10.5 x 197 mm. Fits wrists with a circumference of 122-188 mm.
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SAMSUNG Galaxy Watch 5 Pro 45mm Bluetooth Smartwatch w/Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Enhanced GPS Tracking, US Version, Black

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: With its improved battery life, your Galaxy Watch5 Pro is built to keep going on long adventures***** and do more with synced Galaxy devices that work in perfect harmony******.
  • SAPPHIRE CRYSTAL GLASS & TITANIUM CASE: From hiking to rock climbing, its 1.6x stronger, sapphire crystal glass display is ready for intense activities in rough outdoor environments.
  • And with its super-tough titanium case, you can train worry-free*****.
  • ENHANCED GPS: Go ahead, run the tougher trail without worrying about getting lost.
  • Turn-by-turn directions, up to 24 hours of usage and accurate GPS navigation will keep you on the right path.
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SAMSUNG Galaxy Watch 5 40mm Bluetooth Smartwatch w/Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Enhanced GPS Tracking, US Version, Gray

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: Meet the watch that goes as long as you do.
  • Galaxy Watch5’s improved battery keeps up with your busiest day***** Do more with synced Galaxy devices that work in perfect harmony******.
  • SAPPHIRE CRYSTAL GLASS: Galaxy Watch5 can stand the test of the hardest days.
  • Its sapphire crystal glass face is 1.6x stronger, resisting the problems that come with life’s daily routines*****.
  • Now you can wander all you want and still know where you are.
  • Galaxy Watch5 features enhanced GPS with voice navigation right on your wrist.
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SAMSUNG Galaxy Watch 5 40mm Bluetooth Smartwatch w/Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Enhanced GPS Tracking, US Version, Pink Gold Bezel w/Pink Band

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: Meet the watch that goes as long as you do.
  • Galaxy Watch5’s improved battery keeps up with your busiest day***** Do more with synced Galaxy devices that work in perfect harmony******.
  • SAPPHIRE CRYSTAL GLASS: Galaxy Watch5 can stand the test of the hardest days.
  • Its sapphire crystal glass face is 1.6x stronger, resisting the problems that come with life’s daily routines*****.
  • Now you can wander all you want and still know where you are.
  • Galaxy Watch5 features enhanced GPS with voice navigation right on your wrist.
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TT™ 15X Dog Device, Tracking and Training Dog Device with Collar, 18 Levels of Stimulation, Rugged and Water-Resistant, High-Sensitivity GPS, Red

  • Stay connected to your dog and the hunt with up to 80 hours of battery life.Special Feature:Waterproof..
  • Save battery life, and remotely put your dog tracking and training device to sleep with sleep mode when paired with a compatible Garmin device.
  • Update your device via Garmin Express software, available for both Mac and Windows devices.
  • Train with 18 levels of continuous and momentary stimulation plus audible tone and vibration when used with your compatible tracking and training handheld..
  • Rugged and water-resistant up to 10 meters (1 ATM).
  • tough enough to run wherever your dog runs.
  • LED beacon lights, activated from your compatible handheld, keep track of your dog in the field.
  • Compatible with all existing Alpha, PRO 550 Plus and Astro 430 handheld devices from Garmin.
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ADAFRUIT INDUSTRIES 1578 Lithium Ion Polymer Battery - 3.7v 500mAh

  • ...hs after receipt of the battery and maintain the voltage 3.7-4.0V, and store the battery in a cool and dry place..
  • Application—Suitable for portable DVD players, bluetooth devices wireless devices, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems..
  • Directly from manufacturer with worldwide technical support. Please contact us directly if you have any questions or issues with our products and we will respond as soon as possible..
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McKesson 123-4509 NICAD Rechargeable Battery for 72300 Rechargeable Convertible Handle, 3.5V

  • ...hs after receipt of the battery and maintain the voltage 3.7-4.0V, and store the battery in a cool and dry place..
  • Application—Suitable for portable DVD players, bluetooth devices wireless devices, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems..
  • Directly from manufacturer with worldwide technical support. Please contact us directly if you have any questions or issues with our products and we will respond as soon as possible..
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SAMSUNG Galaxy Watch 5 Pro 45mm LTE Smartwatch w/Body, Health, Fitness and Sleep Tracker, Improved Battery, Sapphire Crystal Glass, Enhanced GPS Tracking, US Version, Black

  • ... own schedule, you can now get readings on body fat, skeletal muscle, body water, basal metabolic rate and Body Mass Index (BMI).
  • IMPROVED SENSOR ACCURACY: Stay up to date on your wellness.
  • Get an accurate heart rate thanks to an improved, curved Samsung BioActive Sensor that gets closer to your skin***.
  • AUTO WORKOUT TRACKING: Make the most of every adventure with Auto Workout Tracking — from running to rowing to swimming — automatically in just minutes, and manually tracking more than 90 exercises, including complex activities like HIIT****.
  • IMPROVED BATTERY & GALAXY CONNECTED EXPERIENCE: With its improved battery life, your Galaxy Watch5 Pro is built to keep going on long adventures***** and do more with synced Galaxy devices that work in perfect harmony******.
  • SAPPHIRE CRYSTAL GLASS & TITANIUM CASE: From hiking to rock climbing, its 1.6x stronger, sapphire crystal glass display is ready for intense activities in rough outdoor environments.
  • And with its super-tough titanium case, you can train worry-free*****.
  • ENHANCED GPS: Go ahead, run the tougher trail without worrying about getting lost.
  • Turn-by-turn directions, up to 24 hours of usage and accurate GPS navigation will keep you on the right path.
Check Stock