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 colour, 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 colour.

Most of us want to know more about ourselves, so that 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




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


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 percentage 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

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 is designed to capture 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, 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


Your workout buddies have
your back

Following the text message, there are two emotes; a gush of wind and a set of eyes glancing left.

See you at the finish line, David!

12:45 PM

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. There are text bubbles on the top left and bottom right, each pointing to its speaker.

Two exclamation point emotes are used before and after the words "Look out".

Look out Isabella is catching up…

12:46 PM

Challenge your friends and family to a fitness workout and stay motivated with a running coach on your wrist. Galaxy Watch4 lets you track your steps and compete with friends in competitions through a live message board. The challenges come with badges and a point system to keep you on top of your fitness game.


Name a workout.
Your watch can track it.

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 kilojoules and stay on the grid with GPS. Galaxy Watch4 is designed to detect physical activity to help track your routines and supports more than 90 exercises so you can accurately track all your workouts. 13


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 optimise 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 kilojoules 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


A watch that's watching out for you

A Galaxy Watch4 device in pink gold color attached with a pink band is shown. On the watch face, the menu for Blood Pressure and ECG measurement features are displayed.


All the data your heart desires

Meet the Samsung BioActive Sensor. It measures ECG and blood pressure in real time. After initial calibration, the sensors quickly check your blood pressure. Check for irregular heart rate and rhythm through ECG - the data gets send straight to your phone to be easily shared. 17, 18, 19, 20, 21, 22, 23

The underneath of the Galaxy Watch4 device's sensor that measures Blood Pressure is highlighted, followed by the sensor measuring ECG being highlighted.

Blood Pressure Measure Blood Pressure using an Optical Heart Rate Sensor known as the PPG Sensor.

ECG Measure ECG using an Electrical Heart Sensor.

The front watch face of the Galaxy Watch4 device is measuring blood pressure. Its display changes from the blood pressure measuring feature to the ECG measuring feature.


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.


Enjoy 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 analyses your sleep stages while you rest. Improved measuring options lets 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


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 comes full circle

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


Sleek, Seamless, Iconic

Galaxy Watch4 features a simple design with a streamlined Armor Aluminium metal frame. High-end style meets functionality so you can turn heads while tracking your workouts and day-to-day tasks.

Mix and match your style with the wide selection of bands, including the Hybrid Leather Band or the Sport band. The bands are made with high-quality materials, designed for comfort and is sweat-resistant. 33, 34, 35

Galaxy Watch Design Studio

Time to find your personal style.


New day,
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 colours to match your taste, the weather, or the occasion. Give your watch face a cute twist with the AR Emojis and switch to the animated graphics to show what you're up to - like running or listening to music.

Galaxy Watch4
Bespoke Studio

Find your personal style. Mix and match the latest bands and cases to design your own Galaxy Watch4.

Four Galaxy Watch4 devices are stacked on top of each other with each watch showing a different watch face to tell the time. Each watch has a different color watch band, from Violet to Mustard to Red to Navy.


It’s a real
team player

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

Galaxy Watch4 is the first smartwatch equipped with Wear OS powered by Samsung. That means you get seamless access to all your favourite apps right on your wrist. Best of all, there's a rich app selection from music streaming apps to 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 and Galaxy Watch4 Classic sold separately.

Life opens up
with Galaxy

  1. Availability of colours, 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. ECG and BP feature only to be used by 22 years+. For accurate BP readings, a calibration is required every 4 weeks by BP monitor & arm cuff. Requires a Galaxy smartphone running Android 7.0 or above.
  18. Users should measure their blood pressure when at rest, as they would do with a traditional cuff, and refrain from measuring when they are working out, smoking, or drinking.
  19. Availability of feature and app may vary by region, connected device, SW version and carrier.
  20. Measured blood pressure history can be reviewed within the Samsung Health Monitor app on a paired smartphone.
  21. A Galaxy Watch and Samsung Galaxy smartphone are required to use Samsung Health Monitor app. Due to country restrictions in acquiring approval/registration as a medical device, Samsung Health Monitor app only works on watches and smartphones purchased in the countries where service is currently available.

    - Supported watches: Galaxy Watch4, Galaxy Watch3, Galaxy Watch Active2 and later released Galaxy Watch and Active models (excluding Galaxy Fit)

    - Supported smartphones: Samsung Galaxy smartphone with Android N OS version or higher

    - Samsung Health Monitor Blood Pressure app is available in 39 countries (Austria, Azerbaijan, Belgium, Brazil, Bulgaria, Chile, Croatia, Cyprus, Czech, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hong Kong, Hungary, Iceland, Indonesia, Ireland, Italy, Korea, Latvia, Lithuania, Netherland, Norway, Poland, Portugal, Romania, Russia, Singapore, Slovakia, Slovenia, Spain, Sweden, Swiss, UK and UAE, as of Aug. 11, 2021).

  22. The Blood Pressure app is a 'medical device' in countries where registration/approval is required and obtained. Note that availability of Blood Pressure app may vary by country. Please use after reading 'Precautions before use' and 'How to use' steps 1~4.
  23. The Blood Pressure app is not intended for any diagnostic purposes regarding hypertension or other heart conditions or users under 22 years old. Users should not interpret or take clinical action based on the device output without consultation of a qualified healthcare professional. The Blood Pressure app is not intended to replace traditional methods of diagnosis or treatment.
  24. Availability may vary by country or region.
  25. 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.
  26. The Galaxy Watch4 must be paired with a smartphone to use the sleep management function.
  27. 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.
  28. 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.
  29. Advanced insights from the National Sleep Foundation is only available on a smartphone paired with the Galaxy Watch4.
  30. Only available on Galaxy Watch4 series and requires latest software update
  31. Requires Samsung Health app version 6.21 or later.
  32. Requires Samsung Galaxy Phone with Android 8.0 or later.
  33. 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.
  34. 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.
  35. Keep your Galaxy Watch4 and its band(s) clean by wiping them with a soft, dry cloth.
  36. Available apps may vary by country or region.
  37. 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.