Galaxy Watch4 Bluetooth (40mm)

Galaxy Watch4

Four Galaxy Watch4 devices are grouped together, with each watch prominently showing different watch face styles to tell the time. Each watch is in a different color, from black, pink gold, green, to silver.

The watch that knows you best

A green Galaxy Watch4 is displayed with a band that is spread wide. The watch face shows one of the designs that displays the time in a green color.

Most of us want to know more about ourselves, so we can be the best version of ourselves. That's why we engineered the all-new Galaxy Watch4 to be the companion to your journey towards a healthier you. 1

Design Your Own

GO TO GALAXY WATCH
DESIGN STUDIO

FITNESS

Fitness
within
arm's
reach

A woman is smiling and holding a frisbee while wearing a silver Galaxy Watch4 on her wrist.

BODY COMPOSITION

Don't just listen
to your body.
Know it

Track your fitness progress with our first smartwatch that conveniently measures body composition. Get to know your body fat percentage, skeletal muscle, body water and more to achieve your goals. The Samsung BioActive Sensor and our fastest chip brings the biggest innovation to Galaxy Watch yet. 2, 3, 4, 5, 6, 7, 8, 9, 10

A woman is looking at the mirror and flexing her muscles while wearing a Galaxy Watch4 device and holding a Galaxy Z Flip3 5G in her right hand.
The front of the Galaxy Watch4's watch face is shown with the Body Composition feature on, waiting to measure.

Get a BIA measurement using just two fingers in 15 seconds. Anytime, anywhere.

The underneath of a Galaxy Watch4 device is shown and the sensor is being highlighted.

The new Samsung BioActive Sensor captures your body composition in real time to inform you as you manage your health goals.

Measurement results of different metrics from weight, BMI, skeletal muscle, body fat, fat mass, body water, to BMR.

Track your
progress toward
your health goals

Set targets for your weight, body fat percentage, and skeletal muscle. Track your progress and receive reminders on your Galaxy Watch4 to keep you motivated. Celebrate your achievements with badges and build a healthy body from the inside out. 2, 3, 4, 5, 7, 11, 12

Green Galaxy Watch4 with cream watch band displays a "Fantastic" message celebrating the achievement of a body composition goal.

Set targets for your weight, body fat percentage, and skeletal muscle. Track your progress and receive reminders on your watch to keep you motivated. Celebrate your achievements with badges and build a healthy body from the inside out. 2, 3, 4, 5, 6, 7, 10

GROUP CHALLENGE

Your workout buddies have
your back

The front of a Galaxy Watch4 with a green band is shown, and its watch face displays "3rd place" in a walking Group Challenge with friends. Around the watch are diverse people cropped in a circle.

See you at the finish line, David!

12:45 PM

Look out Isabella is catching up...

12:46 PM

Enjoy every step you take with your friends and family with the Galaxy Watch4. Track your steps and compete with friends in a fun competition through a live message board. Challenges come with commemorative badges and a point system to make exercise fun, motivating and socially rewarding.

DAILY ACTIVITY & FITNESS TRACKING

Name a workout.
It can track it

Icons of different exercises can be seen and the swimming icon is highlighted. A woman is swimming in a swimming pool while wearing a Galaxy Watch4 device.
Two women and one man are riding bicycles together on a sunny day. They are similing and enjoying the ride while wearing Galaxy Watch 4 devices.
A man is stretching his left arm and is getting ready for a workout. He is wearing a black Galaxy Watch4 device on his right wrist.

Track your activities and fitness scores on your watch and phone. Count steps, check calories, and stay on the grid with GPS. Galaxy Watch4 detects physical activity to track your routines and supports more than 90 exercises for a more accurate report of your workouts. 13

RUNNING AND CYCLING

Advanced insights for runners
and cyclists

Measure how your body performs during a workout and check your heart rate level as you recover. With advanced index and interval training available on Galaxy Watch4, you can optimize your workouts and train for new performance goals. 5

Galaxy Watch4 displays workout insights like set number, lap time, lap distance, lap pace and heart rate.
'Interval' is shown with options for workout 1, workout 2, recovery and repeat.

Interval Training Pre-set the duration, distance and number of sets for running and cycling interval workouts on your Galaxy Watch4. Then, follow the guide through high- and low-intensity training sessions on your wrist.

A Galaxy S22 mounted like a dashboard on a bike displays the cycling workout data measured by Galaxy Watch4 in real time.

Watch-Mobile Interworking for cycling Galaxy Watch4 measures heart rate and calories and displays the data on your phone's larger screen in real time. Now you can turn your phone into a dashboard. 14, 15, 16

HEALTH

A watch that's watching out for you

BLOOD OXYGEN

Measure blood
oxygen levels
from your wrist

Built-in blood oxygen measurement on Galaxy Watch4 lets you check the amounts of oxygen in your bloodstream at any time. Oxygen saturation is directly linked to physical performance, so monitoring your blood oxygen can help you maintain your health. 24, 25

Black Galaxy Watch4 displays oxygen saturation and BPM measurements.

ADVANCED SLEEP

The most holistic sleep analysis on Galaxy watch

A silver Galaxy Watch4 device is shown with a silver band tied round and its watch face displaying the sleep tracking feature.

The sleep tracker detects and holistically analyzes your sleep stages while you rest. Improved measuring options let you check your blood oxygen levels and snoring patterns (not saying you do). Plus, get advanced insights from the National Sleep Foundation for better sleep quality and duration. 5, 24, 26, 27, 28, 29

SLEEP COACHING

Your coach to bedtime bliss

Learn how to develop healthy sleep habits with Sleep coaching. By tracking your sleep patterns and completing sleep surveys, our program assigns 1 of 8 sleep symbol animals that represents your sleep type. It then provides a 4 to 5 week coaching program with helpful sleep tips, missions and checklists. 5, 24, 30, 31, 32

A Sleep coaching message with the lion sleep symbol.
A black Galaxy Watch4 displays a Sleep Coaching message with the deer sleep symbol.

Find the sleep
symbol that
matches your
sleep type

DESIGN

Design comes full circle

Two Galaxy Watch4 devices are shown, a pink gold color on the left and a silver color on the lower right. Each has a watch face that is showing different colored designs to tell time.

DESIGN

Sleek, Seamless, Iconic

Galaxy Watch4 features a simple design with a streamlined Armor Aluminum metal frame. It offers high-end looks and functionality for your workouts and day-to-day tasks.

Choose from a selection of bands, including the Hybrid Leather Band and the Sport Band, to fashion your own band style. Treat your wrist with high-quality materials, comfort fit, and sweat-resistant surfaces. 33, 34, 35

Galaxy Watch Design Studio

Time to find your personal style.

WATCH FACE

A new day.
A new watch face

A Galaxy Watch4 device and its various watch face styles can be seen.

Choose between analog or digital watch faces with a variety of backgrounds, fonts, and colors to match your tastes, the weather, or occasion. Spice up your character watch faces with AR Emojis to express your style, while animated graphics show what you're up to, like running or listening to music.

NEW OPERATING SYSTEM

It's a real
team player

The sideways view of a green Galaxy Watch4 device is displayed, and various app icons can be seen.

The first smartwatch with Wear OS Powered by Samsung, Galaxy Watch4 puts seamless access to your favorite apps on your wrist. You'll get a rich app selection from music streaming apps to anything in the massive library of health and fitness apps. 36, 37

Galaxy S22 | S22+
Galaxy Tab S8 Ultra

Amazing alone. Better together

Galaxy Buds Pro
Galaxy Watch4 Classic
Galaxy Book2 Pro 360

*Galaxy S22+, Galaxy Tab S8 Ultra, Galaxy Buds Pro, Galaxy Watch4 Classic and Galaxy Book2 Pro 360 sold separately.

Life opens up
with Galaxy

Building a brighter future on the go

Supporting the Global Goals just got easier. Join the
movement to make the world a better place right from your
wrist on the Samsung Global Goals app for the Galaxy Watch.

Two Galaxy Watch4 devices are shown. One is a black Galaxy Watch4 displaying the time. The other is a green Galaxy Watch4 that is displaying the Global Goals list.
C C
  1. Availability of colors, sizes, models, and bands may vary by country or region.

    * UI subject to change.

    * Available features and apps may vary by region, connected device, OS, or carrier.

    * All images on this page are simulated for illustrative purposes.

  2. DO NOT measure your body composition if you have an implanted pacemaker or other implanted medical devices.
  3. DO NOT measure your body composition if you are pregnant.
  4. Measurement results may not be accurate if you are under 20 years old.
  5. Intended for general wellness and fitness purposes only. Not intended for use in detection, diagnosis, treatment of any medical condition or disease. The measurements are for your personal reference only. Please consult a medical professional for advice.
  6. Availability of BIA may vary by country or region.
  7. All features and UI are subject to change.
  8. Compatible with Android 6.0 or higher, RAM 1.5GB above
  9. Device activation is only available after connecting to a smartphone that supports Google Mobile Services(GMS). Please refer to your device manufacturer to find out whether your smartphone supports Google Mobile Services(GMS).
  10. Compatible smartphones and available features may vary by region, carrier and device.
  11. Only available on Galaxy Watch4 series and must be paired with a compatible mobile device.
  12. Compatible smartphones and available features may vary by country or carrier.
  13. Galaxy Watch4 has a water resistance rating of 50 meters under the ISO standard 22810:2010. It is not suitable for diving or high-pressure water activities. If the device or your hands are wet, they must be dried thoroughly prior to handling.
  14. Watch-Mobile Interworking for cycling available on Galaxy Watch4 series with Samsung Health ver 6.21 or later.
  15. Compatible with Android 6.0 or higher and minimum 1.5GB RAM.
  16. Image simulated. UX/UI subject to change
  17. Availability may vary by country or region.
  18. Blood oxygen is for fitness and wellness purposes only and not intended for use in detection, diagnosis, treatment of any medical condition or disease. The measurements are for your personal reference only. Please consult a qualified medical healthcare professional for advice.
  19. The Galaxy Watch4 must be paired with a smartphone to use the sleep management function.
  20. For best results in detecting and recording snoring, place your smartphone on a stable surface near your head with the bottom of the smartphone pointed to your head.
  21. The default setting for snoring detection is off. Users can turn the setting on with their smartphone at anytime using the Samsung Health App 6.18 version or above.
  22. Advanced insights from the National Sleep Foundation is only available on a smartphone paired with the Galaxy Watch4.
  23. Only available on Galaxy Watch4 series and requires latest software update
  24. Requires Samsung Health app version 6.21 or later.
  25. Requires Samsung Galaxy Phone with Android 8.0 or later.
  26. For optimal reading accuracy, your Galaxy Watch4 needs to be snugly fastened to your wrist. When you are not conducting readings, you may loosen the band to provide breathing room. On balance, your watch’s band should not be fastened too tight or loose: make sure that it feels comfortable around your wrist.
  27. If you experience redness, itchiness, or other irritation, remove your Galaxy Watch4 and consult a medical provider prior to continued use. Such reaction may result due to allergies, wearing for prolonged periods, usage habits such as wearing it too tight, or exposure to sweat or other irritants.
  28. Keep your Galaxy Watch4 and its band(s) clean by wiping them with a soft, dry cloth.
  29. Available apps may vary by country or region.
  30. Wear OS Powered by Samsung works with phones running the latest version of Android (excluding Go edition and phones without Google Play Store). Supported features may vary between platforms and countries with compatibility subject to change.
  • A woman is looking at the mirror and flexing her muscles while wearing a Galaxy Watch4 device and holding a Galaxy Z Flip3 5G in her right hand.
    Body composition
  • A swimming icon is highlighted and a woman is swimming in a pool while wearing a Galaxy Watch4 device. Two women and one man are enjoying a bicycle ride on a sunny day while wearing Galaxy Watch4 devices. A man is getting ready for a workout while wearing a black Galaxy Watch4 device on his wrist.
    Daily Activity & Fitness tracking
  • There are three Galaxy Watch4 devices. The middle is in a green color and is showing its front watch face that has the number eight displayed. On th left is a silver Galaxy Watch4 showing the button side. On the right is a pink gold Galaxy Watch4 showing the opposite side.
    Design : Sleek and Iconic

Specifications

  • NFC NFC
  • Bluetooth Version Bluetooth v5.0
  • Size (Main Display) 3.04cm (1.2")
  • Processor 1.18GHz
  • ROM Size (GB) 16
  • Sensors Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor