diff --git a/mobile/android/gradle.configure b/mobile/android/gradle.configure
index 97205a584baa..e92c249a1977 100644
--- a/mobile/android/gradle.configure
+++ b/mobile/android/gradle.configure
@@ -72,6 +72,12 @@ def gradle_android_build_config():
         geckoview_example=namespace(
             variant=variant("debug"),
         ),
+        fenix=namespace(
+            variant=variant("debug"),
+        ),
+        focus=namespace(
+            variant=variant("debug"),
+        ),
     )
 
 
@@ -340,8 +346,8 @@ option(
 imply_option("--disable-android-bundle", False, when="--enable-address-sanitizer")
 
 
-@depends(gradle_android_build_config, "--disable-android-bundle")
-def gradle_android_archive_geckoview_tasks(build_config, aab_enabled):
+@depends(gradle_android_build_config)
+def gradle_android_archive_geckoview_tasks(build_config):
     """Gradle tasks run by |mach android archive-geckoview|."""
     tasks = [
         "geckoview:assemble{geckoview.variant.name}".format(
@@ -350,12 +356,6 @@ def gradle_android_archive_geckoview_tasks(build_config, aab_enabled):
         "geckoview:assemble{geckoview.variant.name}AndroidTest".format(
             geckoview=build_config.geckoview
         ),
-        "test_runner:assemble{geckoview_example.variant.name}".format(
-            geckoview_example=build_config.geckoview_example
-        ),
-        "geckoview_example:assemble{geckoview_example.variant.name}".format(
-            geckoview_example=build_config.geckoview_example
-        ),
         "messaging_example:assemble{geckoview_example.variant.name}".format(
             geckoview_example=build_config.geckoview_example
         ),
@@ -367,6 +367,25 @@ def gradle_android_archive_geckoview_tasks(build_config, aab_enabled):
         ),
         "exoplayer2:publishDebugPublicationToMavenRepository",
     ]
+    return tasks
+
+
+set_config(
+    "GRADLE_ANDROID_ARCHIVE_GECKOVIEW_TASKS", gradle_android_archive_geckoview_tasks
+)
+
+
+@depends(gradle_android_build_config, "--disable-android-bundle")
+def gradle_android_archive_geckoview_subproject_tasks(build_config, aab_enabled):
+    """Gradle tasks run by |mach android archive-geckoview| if just building geckoview."""
+    tasks = [
+        "test_runner:assemble{geckoview_example.variant.name}".format(
+            geckoview_example=build_config.geckoview_example
+        ),
+        "geckoview_example:assemble{geckoview_example.variant.name}".format(
+            geckoview_example=build_config.geckoview_example
+        ),
+    ]
 
     if aab_enabled:
         tasks += [
@@ -381,7 +400,47 @@ def gradle_android_archive_geckoview_tasks(build_config, aab_enabled):
 
 
 set_config(
-    "GRADLE_ANDROID_ARCHIVE_GECKOVIEW_TASKS", gradle_android_archive_geckoview_tasks
+    "GRADLE_ANDROID_ARCHIVE_GECKOVIEW_SUBPROJECT_TASKS",
+    gradle_android_archive_geckoview_subproject_tasks,
+)
+
+
+@depends(gradle_android_build_config, "--disable-android-bundle")
+def gradle_android_archive_fenix_subproject_tasks(build_config, aab_enabled):
+    """Gradle tasks run by |mach android archive-geckoview| if just building fenix."""
+    tasks = [
+        "fenix:assemble{fenix.variant.name}".format(fenix=build_config.fenix),
+    ]
+
+    if aab_enabled:
+        tasks += [
+            "fenix:bundle{fenix.variant.name}".format(fenix=build_config.fenix),
+        ]
+    return tasks
+
+
+set_config(
+    "GRADLE_ANDROID_ARCHIVE_FENIX_SUBPROJECT_TASKS",
+    gradle_android_archive_fenix_subproject_tasks,
+)
+
+
+@depends(gradle_android_build_config, "--disable-android-bundle")
+def gradle_android_archive_focus_subproject_tasks(build_config, aab_enabled):
+    """Gradle tasks run by |mach android archive-geckoview| if just building focus."""
+    tasks = [
+        "focus-android:assemble{focus.variant.name}".format(focus=build_config.focus),
+    ]
+    if aab_enabled:
+        tasks += [
+            "focus-android:bundle{focus.variant.name}".format(focus=build_config.focus),
+        ]
+    return tasks
+
+
+set_config(
+    "GRADLE_ANDROID_ARCHIVE_FOCUS_SUBPROJECT_TASKS",
+    gradle_android_archive_focus_subproject_tasks,
 )
 
 
diff --git a/mobile/android/mach_commands.py b/mobile/android/mach_commands.py
index 1e5502f8eaf2..3e0d22ff8c3b 100644
--- a/mobile/android/mach_commands.py
+++ b/mobile/android/mach_commands.py
@@ -214,9 +214,15 @@ def create_maven_archive(topobjdir):
 )
 @CommandArgument("args", nargs=argparse.REMAINDER)
 def android_archive_geckoview(command_context, args):
+    tasks = command_context.substs["GRADLE_ANDROID_ARCHIVE_GECKOVIEW_TASKS"]
+    subproject = command_context.substs.get("MOZ_ANDROID_SUBPROJECT")
+    if subproject in (None, "geckoview_example"):
+        tasks += command_context.substs[
+            "GRADLE_ANDROID_ARCHIVE_GECKOVIEW_SUBPROJECT_TASKS"
+        ]
     ret = gradle(
         command_context,
-        command_context.substs["GRADLE_ANDROID_ARCHIVE_GECKOVIEW_TASKS"] + args,
+        tasks + args,
         verbose=True,
     )
 
diff --git a/mobile/android/moz.configure b/mobile/android/moz.configure
index 3e432277beed..b2dd72287f09 100644
--- a/mobile/android/moz.configure
+++ b/mobile/android/moz.configure
@@ -57,6 +57,26 @@ option(
 
 set_config("MOZ_ANDROID_GECKOVIEW_LITE", True, when="--enable-geckoview-lite")
 
+option(
+    "--enable-android-subproject",
+    choices=(
+        "fenix",
+        "focus",
+        "geckoview_example",
+    ),
+    nargs="?",
+    help="Build a subproject of android. Possible options: fenix/focus/geckoview_example",
+)
+
+
+@depends("--enable-android-subproject")
+def android_subproject(value):
+    if value:
+        return value[0]
+
+
+set_config("MOZ_ANDROID_SUBPROJECT", android_subproject)
+
 imply_option("MOZ_NORMANDY", False)
 imply_option("MOZ_SERVICES_HEALTHREPORT", True)
 imply_option("MOZ_GECKOVIEW_HISTORY", True)
diff --git a/settings.gradle b/settings.gradle
index 61f60bbd4256..04acc7415a80 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -46,26 +46,31 @@ System.setProperty('android.home', gradle.mozconfig.substs.ANDROID_SDK_ROOT)
 
 include ':annotations', ':messaging_example', ':port_messaging_example'
 include ':geckoview'
-include ':geckoview_example'
-include ':test_runner'
 include ':exoplayer2'
-include ':android-components'
-include ':samples-browser'
-include ':fenix'
 include ':mozilla-lint-rules'
-include ':focus-android'
-include ':service-telemetry'
+include ':android-components'
 
 project(':annotations').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/annotations")
 project(':geckoview').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/geckoview")
-project(':geckoview_example').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/geckoview_example")
-project(':test_runner').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/test_runner")
 project(':exoplayer2').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/exoplayer2")
 project(':android-components').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/android-components")
-project(':samples-browser').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/android-components/samples/browser")
-project(':fenix').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/fenix/app")
-project(':service-telemetry').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/focus-android/service-telemetry")
-project(':focus-android').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/focus-android/app")
+
+if (!gradle.mozconfig.substs.MOZ_ANDROID_SUBPROJECT || gradle.mozconfig.substs.MOZ_ANDROID_SUBPROJECT == "fenix") {
+    include ':fenix'
+    project(':fenix').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/fenix/app")
+}
+if (!gradle.mozconfig.substs.MOZ_ANDROID_SUBPROJECT || gradle.mozconfig.substs.MOZ_ANDROID_SUBPROJECT == "focus") {
+    include ':focus-android'
+    project(':focus-android').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/focus-android/app")
+}
+if (!gradle.mozconfig.substs.MOZ_ANDROID_SUBPROJECT || gradle.mozconfig.substs.MOZ_ANDROID_SUBPROJECT == "geckoview_example") {
+    include ':samples-browser'
+    include ':geckoview_example'
+    include ':test_runner'
+    project(':test_runner').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/test_runner")
+    project(':geckoview_example').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/geckoview_example")
+    project(':samples-browser').projectDir = new File("${gradle.mozconfig.topsrcdir}/mobile/android/android-components/samples/browser")
+}
 
 if (hasProperty("androidFormatLintTest")) {
     include ':androidFormatLintTest'