How To Fix Samsung Galaxy Watch 5 Not Syncing Issue

Is your Samsung Galaxy Watch 5 having difficulty syncing with your mobile device? There are several factors that can cause this problem such as the Bluetooth connection between devices, software or even hardware issue. To fix this you will need to perform several troubleshooting steps.

The Samsung Galaxy Watch 5 is the latest wearable device that’s a considerable upgrade over last year’s Galaxy Watch 4 model. Running on Wear OS, it has improved sleep tracking accuracy, better screen protection, and a faster charging capability.

Technical Specifications:

  • Display: 1.19″ Sapphire Crystal Glass AMOLED 396 x 396px (40mm) or 1.36″ Sapphire Crystal Glass AMOED 450 x 450px (44mm)
  • CPU: Samsung Exynos W920
  • RAM: 1.5GB
  • Storage: 16GB
  • Battery: 284mAh (40mm) or 410 mAh (44mm)
  • Connectivity: NFC, GPS, Bluetooth 5.2, Wi-Fi (2.4Gz & 5Ghz), LTE (optional)
  • Durability: IP68, Waterproof to 50m (5ATM), MIL-STD-810H
  • Software: One UI Watch 4.5 atop Wear 3.5
  • Health sensors: Optical Heart Rate, Electrical Heart Sensor (ECG), Bioelectrical Impedance (BIA), Continuous SpO, Skin Temperature Sensor
  • Mobile payments: Samsung Pay, Google Wallet

Why does my Samsung Galaxy Watch keep disconnecting from my mobile phone?

Why is my Galaxy watch not syncing?

One of the issues that you might encounter with your Samsung Galaxy Watch 5 is when it does not sync with your Android phone. This can be a frustrating experience as the health and fitness data recorded by the watch won’t be saved by the phone.

Here’s what you can do to fix this sync issue.

Solution 1: Restart the Samsung Galaxy Watch 5 and the connected Android phone

The first thing you will need to do in this case is to restart both your smartphone and Galaxy Watch devices. This will refresh both of its operating systems and re-establish the Bluetooth connection between them.

Restart the Galaxy Watch5

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.

Once both devices have started and connected to each other try checking if the issue persists.

Solution 2: Check for Bluetooth connectivity issues

Syncing your Samsung Galaxy Watch 5 and Android smartphone will require a Bluetooth connection. 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 Samsung Galaxy Watch 5. Just follow the on-screen instructions to connect the watch to your phone.

Take note that the Bluetooth feature of both devices must be turned on.

Solution 3: Check the battery life of the Galaxy Watch 5 and Android phone

Samsung recommends that your Samsung Galaxy Watch 5 and Android smartphone have at least 25% battery life in order for the sync feature to work properly. A battery life lower than this will activate the power saving mode where the Bluetooth feature is turned off thus causing sync issues.

Solution 4: Update the Samsung Galaxy Wearable app

If you have an older version of the Galaxy Wearable app then this might cause sync issues. On an Android device you can get the latest app update 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 Samsung Galaxy Watch 5 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 your Samsung Galaxy Watch 5

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

Factory reset Galaxy Watch 5

  • 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.

Proceed with the pairing process between the two devices then check if the issue still occurs.

Frequently Asked Questions

  1. Why does my Samsung Galaxy Watch keep getting disconnected from my phone?

    Your Samsung Galaxy Watch will be disconnected due to a Bluetooth issue, software glitch, or because of hardware problems.

  2. What compatible phone can I use to pair with my Samsung Galaxy Watch?

    The Galaxy Watch 5 works best with a Galaxy phone with Android 8.0 and a minimum of 1.5GB RAM.

  3. How do I use Snore detection on Galaxy Watch 5?

    To activate snore detection this feature must be turned on under settings using the Samsung Health app.

  4. Why does my Galaxy Watch 5 have no BP function?

    The BP function is only available in countries where the service is currently available. This is due to country restrictions in obtaining approval as a medical device.

  5. Why is there no ECG feature in my Galaxy Watch 5?

    ECG availability varies per region and country. This is due to country restrictions in obtaining approval as a medical device.

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Chad Buenaflor

Chad has been in the tech industry since 2000. He has a degree in Electronics Engineering and is interested in the hardware and software side of technology. Initially working for a Japanese semiconductor company as a Test Engineer for nearly 10 years, he then pursued his passion for internet technology by working for the support team of Time Warner Cable then finally joining TheDroidGuy as one of their troubleshooting and tech writers. On his free time he plays his favorite games on his PC, Xbox Series X, and Android phone. Contact me at Email

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