This update includes improvements to functions as listed below.
The exact changes may differ depending on your device model, country, and service provider.
To get the best from your device, please keep your device up to date and regularly check for software updates.

Galaxy Watch4 (SM-R870)


Build Number : R870XXU1FVD4
Android version : R(AndroidWear 11)
Release Date : 2022-05-04
Security patch level : 2022-05-01
• Improved system stability and reliability
Stabilization codes for watch operation have been applied.

Build Number : R870XXU1FVC8
Android version : R(AndroidWear 11)
Release Date : 2022-04-05
Security patch level : 2022-03-01
• Enhanced Samsung Health Function
• Improved system stability and reliability

Build Number : R870XXU1EVB4
Android version : R(AndroidWear 11)
Release Date : 2022-02-24
Security patch level : 2022-01-01
• Improved system stability and reliability

Build Number : R870XXU1EVA8
Android version : R(AndroidWear 11)
Release Date : 2022-02-09
Security patch level : 2022-01-01
• Live Wallpaper Watch face update with Galaxy S22's Wallpaper.
• New Watch faces have been added to match the new bands.
• More customization options, such as colors and clock fonts, have been added to existing Watch faces.
• Provides information on moisture loss and intake required after outdoor running exercises for body balance and exercise efficiency.
• Supports Interval Training for Running and Cycling Exercises. Make a more systematic exercise plan with Galaxy Watch!
• When you're done exercising, the Watch measures your heart rate recovery.
Check with the Galaxy Watch if your heart rate has recovered properly during your break.
• Now you can see your personalized workload when running. Check and adjust your workload in real time (This indicator shows % of VO2 Max value).
• Now you can see the heart rate and the calories measured on the Watch on your phone screen. Use this for safe cycling.
• Now you can set personal goals for your body composition analysis.
Set your personal goals and get tips and badges to achieve them.
• Provides tips and insights for body composition results (This feature is provided through a partnership with Centr: By Chris Hemsworth )
• Provides 8 types of personalized sleep coaching based on sleep data measured by the Watch.
• Create better sleeping habits with 4-5 weeks of coaching to match your sleep patterns!
※ Intended for general wellness purposes only. Provides sleep guidance for your personal reference only. Not intended for use in the detection, diagnosis, or treatment of any medical conditions or sleep disorders. Consult a medical professional for advice.
• When it detects that the user is asleep, SmartThings can set actions for smart devices to create a good sleeping environment.
• Orientation settings have been added to allow the Watch to be worn in the desired direction on the desired wrist. You can freely change the direction you wear your Watch through the Watch and the Galaxy Wearable app.
• Provides a wider variety of Bixby voice commands.
Your Bixby voice command can read notifications, reply back, and control the volume of media controls.
• If you connect your phone and Watch for the first time, the apps that you often use on your current phone and other Android devices are automatically installed on your Watch (Only if the selected app exists for the Watch).

※ The frequently used app list is provided based on the app list installed with the user's Google account.

• Get to know the various popular apps on the Play Store in the Galaxy Wearable App more easily and quickly.

Build Number : R870XXU1DUK1
Android version : R(AndroidWear 11)
Release Date : 2021-11-12
Security patch level : 2021-11-01
• Improved system stability and reliability

Build Number : R870XXU1DUJA
Android version : R(AndroidWear 11)
Release Date : 2021-10-20
Security patch level : 2021-11-01
• Watch faces
- Supports 4 types of new Watch faces.
- Together, AR Emoji, Bitmoji Watch face: Usability was improved.
- My Photo Watch face: Supports GIF files.
- Animal, Cute Character Watch face: Customization feature was improved.
- Supports the backup and restoration of the order of Watch faces and the changed settings of the preloaded Watch faces.
• Samsung Health
- An improved HR measurement accuracy algorithm was added.
- The sensitivity option in the Fall Detection feature was added.
• Gesture
- A new gesture that allows you to run apps or features immediately was added.
• Call
- Supports mute status (Icon, Mute/Unmute status) while talking on the phone.
• Improved system stability and reliability

Build Number : R870XXU1CUJ2
Android version : R(AndroidWear 11)
Release Date : 2021-10-08
Security patch level : 2021-08-01
• Improved system stability and reliability

Build Number : R870XXU1CUID
Android version : R(AndroidWear 11)
Release Date : 2021-09-29
Security patch level : 2021-08-01
• Improved system stability and reliability

Build Number : R870XXU1BUI5
Android version : R(AndroidWear 11)
Release Date : 2021-09-09
Security patch level : 2021-08-01
• Improved usability of the following applications or features: Touch bezel
• Improved system stability and reliability

Build Number : R870XXU1BUH9
Android version : R(AndroidWear 11)
Release Date : 2021-08-23
Security patch level : 2021-08-01
• Improved system stability and reliability