The Galaxy Watch4 is Samsung’s most advanced smartwatch to date. Not only can you use it to track a dizzying array of activities, from swimming and running to hang-gliding and snowboarding, you can also measure your body composition, measure your ECG and blood pressure, get in depth sleep analysis, and much more.
One thing that makes the Galaxy Watch4 so great is that it’s the first generation of watches to run Google Wear OS Powered by Samsung. This OS is a version of the Android operating system designed specifically for smartwatches and wearables. Wear OS means that the Galaxy Watch4 features a 2.5 times shorter set-up experience. But that’s not all. Thanks to Wear OS, the Galaxy Watch4 now supports more Google apps, including Google Maps! This means that you can now navigate just by looking at your wrist.
Because of the restrictions of Google Wear OS, some non-Samsung mobile devices aren’t compatible with the Galaxy Watch4: both Huawei smartphones and iPhones are incompatible with the Watch4. However, previous versions of the Galaxy Watch, like the Watch3 and Watch Active2 are compatible with iPhone devices.
Of course, as the Galaxy Watch4 runs a special version of Android, it is compatible with all other Android smartphones, as long as they’re running Android OS 6.0 or later, and have more than 1.5GB of RAM.
If you’re having trouble connecting your Galaxy Watch4 to your smartphone, there are a couple of things you can try.
Press and hold the Power and Back button
To force your watch to reboot, press and hold the Home/Power button and Back button at the same time until you see “Rebooting…” on the screen. Don’t select Power off or Restart. How long you need to hold down the buttons can vary; on some models, it may take up to 30 seconds for “Rebooting…” to appear.
When the rebooting message appears, let go of the buttons you were holding. The screen will go dark, and then the watch will reboot.
Check for software updates
If you’re rebooting your watch to fix a problem, check for software updates for your watch and the Galaxy Wearable app when you’ve finished the reboot. Check out our guide to checking for watch updates.