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    Now available for the Gear S3, Gear Sport, Galaxy Watch, Galaxy Watch Active, and Galaxy Watch Active 2 (New).

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    Circular type : 360 x 360 px

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    The version of Java supported by the Galaxy Watch Designer (GWD) depends on the version of GWD you are installing and your operating system.

    For more information, see Compatibility.

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    Sometimes, the Galaxy Watch Designer can’t find the Java you installed because it was installed in an unusual folder or because the installer set a system variable incorrectly. The Galaxy Watch Designer won’t run if it can’t find the Java you installed or if you are using an unsupported version of Java. Do the following to make Galaxy Watch Designer find Java:

    1. 1.

      On either a Windows system or Mac, verify the Java version that the system is using:

      From the Command Prompt (Windows) or Terminal (Mac), type: java –version

      If a version is not returned, your system does not know where you installed Java. If your system does not know where Java is located, Galaxy Watch Designer also may not know where your Java is located. Continue to the next step applicable for your operating system.

      If a version is returned, verify that you are using the correct version of Java for your operating system. See Compatibility for information about required Java versions. If you do not find your version of Java listed in the table, install one of the required versions (you may have more than one version of Java installed on your system). After you have installed or verified that you have a required version of Java installed, continue to the next step applicable for your operating system.

    2. 2.

      On a Windows system, add the path to the Java executable file in the Galaxy Watch Designer initialization file:

      1. a. Open GalaxyWatchDesigner.ini in a text editor. This file is located in the Galaxy Watch Designer installation folder (by default, C:\Program Files\Galaxy Watch Designer)
      2. b. At the end of the file, add the location of your Java executable file (including the absolute path name). For example, if you installed Java version 1.8.0_191, add:
        -vm C:\Program Files\Java\jre1.8.0_191\bin\javaw.exe
    3. 3.

      On a Mac, add the path to Java in the Galaxy Watch Designer’s information property list file:

      1. a. Open a new Finder window and navigate to the Applications folder.
      2. b. Right-click on GalaxyWatchDesigner and select Show Package Contents.
      3. c. In the Contents folder, open Info.plist.
      4. d. Locate the Eclipse/array tags that mention the specific version of Java being used.
      5. e. Outside of the comment tags (<!- - and - ->), add the location of your Java executable file (including the absolute path name), using the same format as the text shown inside the comment tags. For example, if you installed Java version 1.8.0_202, add:
        <string>-vm</string> <string>/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/bin/java</string>

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    Please try as below.

    1. Add below line to “~/.bash_profile

    export JAVA_HOME=/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home

    2. Add below to PATH variable. Or you can simply install JDK (not JRE) that will do above things automatically.

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    Having too many complex conditions may causes problems. Only use conditions to show or hide components. For more complicated motion designs, use animations.

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    You can change this in Rotation properties > Rotate.
    For example, a complication showing the battery level will have a watch hand that rotates clockwise through 360°. Using the settings above will change the rotation to anti-clockwise through 180°.

    12 o’clock starting point, rotate 180 degrees clockwise

    3 o’clock starting point, rotate 180 degrees clockwise

    You can also customize the start and end points of a watch hand’s rotation from Preview.

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    Of course. Simply save your image in [Installation Directory\res\], and it will appear as the corresponding preset.

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    Right-click on your watch face in Preview or on a layer. Select Swap image, then upload the new one.

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    There are two ways to add a font to your project:

    • In the Properties > Appearance > Font drop-down list, click Add font. From the file manager, select the font to add.

    • Drag and drop the .ttf file into the GWD workspace.

    The font must be installed before it can be added to the GWD. To install the font, double-click the font in the Finder and click Install Font. To make the font available to all projects in the GWD, add the font to the \\Galaxy Watch Designer\font directory.

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    You can display your digital clock, weather type text component, or normal text in another language. See Language Settings for more information.

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    If your selected font is not supported in a particular language, then that font won't be displayed properly on your watch.

    1. Use a Truetype font which is supported by the target languages.
    2. Set Truetype font to "Sync to Device".

    3. Select a language which supports the desired font, under Language setting popup for digital clocks, and Data > Language for text. Note that with this method, text such as AM/PM won't be translated.

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    You can show a variety of different information on the watch face.

    For example: You can show the user’s heart rate as text by going to Text > Heart Rate from the Component window. Or, select an existing text component, and go to Properties > Data > Data Sync > Heart rate.

    You can test out all the conditions you’ve added in Preview.

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    Moon phase position. From 0.00 ~ 27.99

    0 (-0.5 ~ 0.5) : New Moon
    0.5 ~ 6.5 : Evening Crescent
    7 (6.5 ~ 7.5): First Quarter
    7.5 ~ 13.5 : Waxing Gibbous
    14 (13.5 ~ 14.5) : Full Moon
    14.5 ~ 20.5 : Waning Gibbous
    21 (20.5 ~ 21.5) : Last Quarter
    21.5 ~ 27.5 : Morning Crescent
    28 (0) : New Moon

    Moon phase from 0 to 7

    0 : New Moon
    1 : Evening Crescent
    2: First Quarter
    3 : Waxing Gibbous
    4 : Full Moon
    5 : Waning Gibbous
    6 : Last(Third) Quarter
    7 : Morning Crescent

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    A. Creating shadows

    You can create object shadows by using Adjust Color to set the color of the original object to black, then positioning it as required.

    1. Copy and paste the original object.
    2. Use Adjust Color to set the color of the new object to black.
    3. Set the position and layer position of the new object to make it look like a shadow. (from the same position as the original object, move the new object downwards by around 7 pixels.)

    B. Creating button areas

    Create transparent button areas by selecting an image, setting its opacity to 0%, then setting it as a button.

    C. Repeating conditional lines

    You can create repeating conditional lines by copy and pasting existing conditional line patterns. For example, you can set an image to show or hide every 30 minutes.

    1. Add the image.
    2. Set the Timeline scale to Minute.
    3. Set the properties to have the image show for the first 30 minutes and hide for the next 30 minutes.

    4. Set the Timeline scale to Hour.
    5. Select the 30 minute show/hide period and copy it.
    6. Paste the period.

    *Note that excessively detailed patterns can cause the device to function incorrectly.

    D. Adjusting the length of animations

    Let’s try tripling an animation’s duration.


    1. Load the animation object.
    2. Double click on the animation to enter edit mode.
    3. Animation layers are set to show 1 frame per 1/15 seconds by default. In the Set frame delay popup, set Apply all frames to delay with 3 frames (refers to image)

    4. Return to Normal mode by double clicking on any outside area.
    5. When you test out the animation, it will be 3 times longer than before.

    *Note that the animation is not actually synchronized with the time on the watch face.

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    Images that contain bright colors and animations use battery power more quickly.

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    Watch faces with always-on pixel usage of more than 15% can not be built in GWD due to battery drain and burn-in of the watch.
    However, if it exceeds 15% temporarily, the watch face could be built. In this case, the store registration can be rejected during the quality verification process or it can be canceled by the user complaints even if the watch face was built.

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    Your design will be saved as a .gwd file in [home folder\GearWatchDesigner\workspace]. You can share this file with other users for collaborative design projects.

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    The author certificate is used for signing and verifying your app. It identifies the developer of the app and ensures the following: the app is not distributed by someone else, the developer can publish updates, and secure IPC (inter-process communication). After you publish an app, you must use the same certificate to sign and publish updates for this app.

    To generate an author certificate,

    • Using the Galaxy Watch Designer, from the main menu bar, click Project > Author Certificate. For more information, see Getting Started.

    Important! Make a backup of your author certificate, save the backup on a different device, and keep both the original and backup in a secure place. If you lose your author certificate, you will not be able to publish updates to your apps.

    For more information about author certificates, see Getting the Certificates.

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    If you have lost your author certificate and do not have a backup or if you have forgotten the password for the certificate and cannot reset it, do the following:

    1. 1. Generate a new author certificate.

    2. 2. Make a backup of your new author certificate and do not save the backup on the same device as the original certificate. Keep both the original and backup in a secure place.

    3. 3. Build a newer version of your app with the new certificate.

    4. 4. Upload the app to Seller Portal and release it.

    5. 5. Suspend the older version of the app.

    For more Galaxy Watch FAQs, click here.

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    This is usually due to certification not being performed correctly. Perform the certification process again in this order: Distributor -> certification -> Build -> Run on device.

    *Distributor certification can be performed in this order: Menu bar > Project > Distributor Certificate.
    *If you have reset or otherwise changed your device, you need to perform the distributor certification again.

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    The distributor certificate is used for signing and verifying your app. It identifies the distributor (for example, Galaxy Store) and grants privileges to that distributor. For testing purposes, it ensures that your signed application is installed on registered devices only.

    In order to test your app on a device, the device must be registered in your personal distributor certificate. Then, you must build your app, which signs the app using your personal distributor certificate.


    To generate a personal distributor certificate and register a Samsung device,

    • Using the Galaxy Watch Designer, from the main menu bar, click Project > Distribute Certificate. For more information, see Getting Started.

    The personal distributor certificate is used for testing only. When you release your app for sale in the Galaxy Store, your personal distributor certificate is replaced by an official distributor certificate.


    If you upgrade a registered device (for example, you upgrade the Tizen OS), you may need to re-register the device in your personal distributor certificate. For example, if you upgrade your Gear 3 or Sport watch to Tizen 4.0, you must re- register the device in your personal distributor certificate and rebuild your app before testing it on the device.


    You may encounter one of the following error messages if there is a problem with the distributor certificate.

    Message Cause Solution

    Account in device profile mismatch with distributor certificate.

    The device has been upgraded and the DUID (Device Unique Identifier) has changed.

    Re-register the device in your personal distributor certificate and rebuild your app.

    Launching AppManagerAppID has encountered a problem.

    The device is not found in your personal distributor certificate or your personal distributor certificate was not created properly.

    Register the device in your personal distributor certificate or re-create your personal distributor certificate and rebuild your app.

    The application installation on the device has failed due to a signature error! (error code : -12)

    You used the Tizen Studio distributor certificate when building your app, not the distributor certificate generated by the Samsung Certificate Extension.

    Select or create a distributor certificate for your Samsung device using the Certificate Manager and rebuild your app.

    For information about the Samsung Certificate Extension, see Installing Certificate Extension. For information about the Certificate Manager, see Creating Certificates and Managing Certificate Profile.

    For more information about distributor certificates, see Getting the Certificates.

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    *Initial firmware only

    Here are a few suggestions to help you identify the problem.

    1. The watch device must be in debug mode.
    2. Bluetooth must be turned off. (Initial firmware only)
    3. Your author/distributor certification must be activated correctly.
    4. Your PC/Mac must be connected to the same access point as the watch.
    - Make sure that the first 9 digits of the IP addresses are the same
    : e.g. PC/Mac =
    Watch = 111.111.111.xxx
    5. Wake up your watch device, then scan again.
    6. Reboot the watch, then scan again.

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    A. When you create a new watch face app, you must create two separate .tpk files: one for Galaxy Watch (Tizen 4.0 and above), and another for Gear S3 and older devices (Tizen 3.0 and below).

    A. Build two .tpk files

    You must build twice. For each build, set a different target API version, and enter a different version number.

    1. Build two .tpk files: one for Galaxy Watch (Tizen 4.0 and later) and one for older Gear models (Tizen 3.0 and earlier). In the build settings, make sure that.
    -Both .tpk files must have the same package name.
    -Both .tpk files must have their own version numbers.
    -Both .tpk files must have their own target API versions (one 3.0 and below, and the other 4.0 and above).

    2. In File browser, note the two different .tpk files that were generated.

    B. Upload both files at the same time

    1. Go to https://seller.samsungapps.com and upload the first binary.

    2. Select Add More Binary.

    3. Upload the second binary. At this point, a standard notice about Samsung version policy may appear, which you can disregard.

    Two binaries are now updated. TW4 will be downloaded by Galaxy Watch (Tizen 4.0 and later), and TW3 will be downloaded by Gear S3 or older models (Tizen 3.0 and earlier).

    C. Continue the App Information process

    Enter all required information. The process is the same as before the Galaxy Watch Designer version 1.6.0 release. After you upload the binary files, complete testing and verification, and start your service.