How To Fix Samsung Galaxy Watch 4 Not Syncing Issue

Syncing your Samsung Galaxy Watch 4 to your phone allows data from the watch to be transferred to the connected phone. A Bluetooth connection is needed for the sync process to work however there are instances when you can’t seem to sync both devices. This can be due to the connection, software, or even a hardware issue.

The Samsung Galaxy Watch 4 is a premium smartwatch that offers a lot of useful health and fitness features. It now runs on Wear OS allowing it access to apps on the Google Play Store. Some of the outstanding features of this smartwatch include several outstanding features such as an IP68 rating, Super AMOLED display, as well as more than 2 days of battery life on a single charge.

  • Body: 44.4×43.3×9.8mm, 30g; Glass front (Gorilla Glass DX+), aluminum frame
  • Display: 1.40″ Super AMOLED, 450x450px resolution, 9:9 aspect ratio, 330ppi; Always-on display.
  • Chipset: Exynos W920 (5 nm): Dual-core 1.18 GHz Cortex-A55; Mali-G68.
  • Memory: 16GB 1.5GB RAM; eMMC.
  • OS/Software: Android Wear OS, One UI Watch 3.
  • Battery: 361mAh; Qi wireless charging.
  • Misc: Accelerometer, gyro, heart rate, barometer; NFC; Natural language commands and dictation, Samsung Pay and Google Pay.

Why doesn’t my Galaxy watch automatically connect to my phone?

Why doesn't my Galaxy watch automatically connect to my phone?

One of the issues that you might encounter with your Samsung Galaxy Watch 4 is when it doesn’t sync with your phone. Here’s what you need to do to fix this.

Solution 1: Restart the Galaxy Watch 4 and the connected phone

Restart the Galaxy Watch 4 and the connected phone

There’s a possibility that the problem is caused caused by a software glitch or a sync issue between the watch and the connected phone. To fix this just restart both devices.

Restart the Galaxy Watch

Press and hold the Power button and Back button for approximately 7 seconds or until the watch power cycles.

Restart the smartphone

Press the power button until the phone turns off. Wait for a minute before turning it back on.

After both devices have restarted try to check if they can sync.

Solution 2: Make sure your phone and Galaxy Watch 4 are connected through Bluetooth

Make sure your phone and Galaxy Watch 4 are connected through Bluetooth

In order to sync content between the Galaxy Watch 4 and phone both devices must be connected using Bluetooth. To verify if both devices are connected just open the Galaxy Wearable app on your phone. If you see the app display “Start” then this means that both devices are not connected. Just tap on start then select the Galaxy Watch 4. Just follow the on-screen instructions to connect the watch to your phone.

If the watch Bluetooth is off then you need to turn it on.

Tap Settings, then tap Connections, and then tap Bluetooth. Verify the switch is turned on.

You also need to make sure that the phone Bluetooth is on as well.

Solution 3: Check the battery level of the Galaxy Watch 4 and phone

Check the battery level of the Galaxy Watch 4 and phone

If the watch or phone battery level is low then there’s a possibility that the sync feature will not work. Samsung recommends that your phone and watch should have more than 25% battery life.

Solution 4: Update the Galaxy Wearable app

Update the Galaxy Wearable app

If you are using an older version of the Galaxy Wearable app then this might cause sync issues. If you are using an Android device then just update the app from the Google Play Store. If you are using an iPhone then you can update the app from the App Store.

Solution 5: Update Galaxy Watch 4 software

You need to make sure that the Watch 4 is running on the latest software update in order to ensure that the watch is using the latest performance ang bug fixes.

Update using an Android phone

Make sure the watch has a good charge on it before starting the update process. You may not be able to update without at least a 30% charge.

On the connected phone, navigate to and open the Galaxy Wearable app.

Tap Watch settings, and then tap Watch software update.

Tap Download and install.

Update using an iOS device

Make sure the watch has a good charge on it before starting the update process. You may not be able to update without at least a 30% charge.

On the connected phone, open the Galaxy Watch app. The Galaxy Watch app is available for iOS devices through the App Store.

Tap the Home tab, and then swipe to and tap About watch.

If an update is available, tap Install. If “Latest version installed” appears, then the watch is up to date.

Solution 6: Factory reset the Galaxy Watch 4

Performing a factory data reset will remove all data from the device. This is the last troubleshooting step you should perform for this particular issue.

Factory reset

Ensure your watch is powered off.

Press and hold the Power/Home button (right-edge) until ‘Rebooting’ appears at the bottom of the screen then release.

Press the Power/Home button repeatedly until the ‘Select REBOOT MODE’ screen appears.

Select Recovery. Press the Power button to cycle through options

When ‘Recovery’ is highlighted as seen in the image above, press and hold the Power/Home button until the device reboots again. Allow several minutes for the reboot process to complete.

Set up your device.

Feel free to visit our YouTube channel for additional troubleshooting guides on various devices.


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