Pixel Watch 4 information

[robertkirkman]

Wear OS 6.1, 32-bit ARM Android 16 ROM with 64-bit ARM kernel and quad-core 64-bit ARM CPU with 2 GB of RAM

Has a tendency to always disconnect from WiFi by itself after a little while of being connected, even while being actively used, and to reconnect to WiFi every ~60 seconds it's necessary to go to the settings app and then touch the Connections sections and then it connects to WiFi, but there is an option in Developer Options to remain connected to WiFi while the charger is connected, and that works.

Some actions, tasks and visual effects make the device start running very slowly and the FPS of SurfaceFlinger visibly drops. Enabling the Developer Option "Show Taps", a cursor overlay for the touchscreen inputs, adds a significant and noticeable amount of input delay and FPS drops to the rendering that do not occur on more powerful devices.

If running something too intensive for too long, like GitHub in Firefox, the device will close all apps, turn off WiFi Debugging, and show a message saying "your watch has overheated, move it to a cooler place".

The SurfaceFlinger implementation does not have a App Switcher screen and does not appear to support multiple simultaneous windows on the screen in any way. Instead of an App Switcher screen, closing running apps can only be explicitly done through the UI at the "force stop" button. Termux does remain running in the background while other apps are on the screen.

Wireless debugging and scrcpy both work and most apps are square in scrcpy, while some are still circular, greatly powering up input and video practicality when developing on the device.

There is no USB port but there is a controversial rumor online that there might be four hidden USB port contacts underneath one of the edge flaps that might be possible to use to connect fastboot.

UNLIKE most other Android 16 ROMs, it does NOT appear to have a "disable child process restrictions" option in Developer Options. However, I believe that I was able to disable phantom process killing by using the ADB method:

 $ adb -s 192.168.12.24:34325 shell "settings put global settings_enable_monitor_phantom_procs false"
 $ adb -s 192.168.12.24:34325 shell "settings get global settings_enable_monitor_phantom_procs"
false
 $ 

Fennec F-Droid has a crash on startup:

Fennec F-Droid crash

05-18 06:14:51.573  2703  2703 D AndroidRuntime: Shutting down VM
05-18 06:14:51.574  2703  2703 E AndroidRuntime: FATAL EXCEPTION: main
05-18 06:14:51.574  2703  2703 E AndroidRuntime: Process: org.mozilla.fennec_fdroid, PID: 2703
05-18 06:14:51.574  2703  2703 E AndroidRuntime: java.lang.NullPointerException: getInstance(...) must not be null
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at org.mozilla.fenix.bookmarks.BookmarksScreenKt$$ExternalSyntheticLambda46.invoke(R8$$SyntheticClass:63)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:21)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at org.mozilla.fenix.onboarding.OnboardingFragment.getPagesToDisplay(OnboardingFragment.kt:3)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at org.mozilla.fenix.onboarding.OnboardingFragment.onCreate(OnboardingFragment.kt:7)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:56)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:151)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1271)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:92)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:149)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:65)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:282)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:146)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:59)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:34)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:32)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:1)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at org.mozilla.fenix.HomeActivity.onStart(HomeActivity.kt:40)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1718)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.Activity.performStart(Activity.java:9333)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.ActivityThread.handleStartActivity(ActivityThread.java:4545)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:214)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:194)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.servertransaction.TransactionExecutor.executeLifecycleItem(TransactionExecutor.java:166)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:101)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:80)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2987)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.os.Handler.dispatchMessageImpl(Handler.java:142)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.os.Handler.dispatchMessage(Handler.java:125)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.os.Looper.loopOnce(Looper.java:269)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.os.Looper.loop(Looper.java:367)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at android.app.ActivityThread.main(ActivityThread.java:9333)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at java.lang.reflect.Method.invoke(Native Method)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:566)
05-18 06:14:51.574  2703  2703 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:929)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: Uncaught exception handled: 
05-18 06:14:51.575  2703  2703 E ExceptionHandler: java.lang.NullPointerException: getInstance(...) must not be null
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at org.mozilla.fenix.bookmarks.BookmarksScreenKt$$ExternalSyntheticLambda46.invoke(R8$$SyntheticClass:63)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:21)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at org.mozilla.fenix.onboarding.OnboardingFragment.getPagesToDisplay(OnboardingFragment.kt:3)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at org.mozilla.fenix.onboarding.OnboardingFragment.onCreate(OnboardingFragment.kt:7)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:56)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:151)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1271)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:92)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:149)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:65)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:282)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:146)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:59)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:34)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:32)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:1)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at org.mozilla.fenix.HomeActivity.onStart(HomeActivity.kt:40)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1718)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.Activity.performStart(Activity.java:9333)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.ActivityThread.handleStartActivity(ActivityThread.java:4545)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:214)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:194)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.servertransaction.TransactionExecutor.executeLifecycleItem(TransactionExecutor.java:166)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:101)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:80)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2987)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.os.Handler.dispatchMessageImpl(Handler.java:142)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.os.Handler.dispatchMessage(Handler.java:125)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.os.Looper.loopOnce(Looper.java:269)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.os.Looper.loop(Looper.java:367)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at android.app.ActivityThread.main(ActivityThread.java:9333)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at java.lang.reflect.Method.invoke(Native Method)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:566)
05-18 06:14:51.575  2703  2703 E ExceptionHandler: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:929)
05-18 06:14:51.615  1725  1727 I pixel-thermal: audio-therm:41.436 raw data: audio-therm:41436 
05-18 06:14:51.640  2703  2703 I mozac/CrashReporter: Received crash: UncaughtExceptionCrash(timestamp=1779102891575, throwable=java.lang.NullPointerException: getInstance(...) must not be null, breadcrumbs=[Breadcrumb(message=onCreate(), data={recreated=false, intent=android.intent.action.MAIN, instance=155267021}, category=HomeActivity, level=INFO, type=DEFAULT, date=Mon May 18 06:14:51 CDT 2026)], runtimeTags={release=150.0.3, geckoview_version=150.0.3, build_id=20260516085010, git_hash=, ac_version=150.0.3, as_version=150.0.1, glean_version=67.1.0, version_name=150.0.3, version_code=1500300, locale=en_US, start_time=1779102890, experiment_data={"data":{"private-mode-and-stories-navigation-new-users":"control","long-term-holdback-2025-h1-growth-android":"delivery"}}}, uuid=92c54e30-67e9-4762-b2c7-62d592836df3)
05-18 06:14:51.690  1602  3064 I ActivityManager: Background started FGS: Allowed [callingPackage: org.mozilla.fennec_fdroid; callingUid: 10162; uidState: TOP ; uidBFSL: [BFSL]; intent: Intent { xflg=0x4 cmp=org.mozilla.fennec_fdroid/mozilla.components.lib.crash.service.SendCrashTelemetryService (has extras) }; code:PROC_STATE_TOP; tempAllowListReason:<null>; allowWiu:12; targetSdkVersion:36; callerTargetSdkVersion:36; startForegroundCount:0; bindFromPackage:null: isBindService:false]

However, Firefox from FFUpdater from F-Droid works.

UI images

F-Droid is extremely difficult, but possible to use.

termux-info:

Termux Variables:
TERMUX_APP_PACKAGE_MANAGER=apt
TERMUX_APP__APK_FILE=/data/app/~~klxhtvz7vRmhTpbRQgDQew==/com.termux-Ula1dhmjSHkE3xwB4Fy5aQ==/base.apk
TERMUX_APP__APK_RELEASE=F_DROID
TERMUX_APP__APP_VERSION_CODE=1022
TERMUX_APP__APP_VERSION_NAME=0.119.0-beta.3
TERMUX_APP__DATA_DIR=/data/user/0/com.termux
TERMUX_APP__IS_DEBUGGABLE_BUILD=false
TERMUX_APP__IS_INSTALLED_ON_EXTERNAL_STORAGE=false
TERMUX_APP__LEGACY_DATA_DIR=/data/data/com.termux
TERMUX_APP__PACKAGE_NAME=com.termux
TERMUX_APP__PID=22525
TERMUX_APP__SE_FILE_CONTEXT=u:object_r:app_data_file:s0:c2,c256,c512,c768
TERMUX_APP__SE_INFO=default:targetSdkVersion=28:complete
TERMUX_APP__TARGET_SDK=28
TERMUX_VERSION=0.119.0-beta.3
TERMUX__APPS_DIR=/data/user/0/com.termux/termux/apps
TERMUX__HOME=/data/data/com.termux/files/home
TERMUX__PREFIX=/data/data/com.termux/files/usr
TERMUX__ROOTFS_DIR=/data/data/com.termux/files
TERMUX__SE_PROCESS_CONTEXT=u:r:untrusted_app_27:s0:c2,c256,c512,c768
TERMUX__UID=10002
TERMUX__USER_ID=0
Packages CPU architecture:
arm
Subscribed repositories:
# sources.list
deb https://packages-cf.termux.dev/apt/termux-main/ stable main
Updatable packages:
All packages up to date
termux-tools version:
1.45.0
Android version:
16
Kernel build information:
Linux localhost 6.6.102-android15-8-gb10d63bc1566-ab14419598-4k #1 SMP PREEMPT Mon Nov 10 20:23:52 UTC 2025 armv8l Android
Device manufacturer:
Google
Device model:
Pixel Watch 4
Supported ABIs:
SUPPORTED_ABIS: armeabi-v7a,armeabi
SUPPORTED_32_BIT_ABIS: armeabi-v7a,armeabi
SUPPORTED_64_BIT_ABIS: 
LD Variables:
LD_LIBRARY_PATH=
LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec-ld-preload.so

Current plan: I will try to make a fork of Hacker's Keyboard with buttons moved into a semicircle shape so that Termux and Termux addons can be fully used with all keyboard buttons on circular screens