Installing or downloading beta version 3 of watchOS 6.1 is a bit complicated.
It is only available for developers.
To know more about the steps to download watchOS 6.1 on your device, go through with these tips provided below: Source:-HOW TO INSTALL WATCHOS 6.1 BETA 3 ON APPLE WATCHTo install watchOS 6.1 beta certificateEnsure that you have a beta version for iOS 13 on your smartphone prior to attempting to download watchOS 6.
Follow these steps to download its certificate:First of all, go to http://www.developer.apple.com from your browser on the iPhone, which is linked/paired with Apple Watch.Hit the “Discover” tab.Now, press the “watchOS” option.Next, hit the “Download” button.In case the prompt appears,log in through your Apple ID and the secure password.Now touch on the “Install Profile” option located next to the tab for “watchOS 6 Beta”.When the prompt appears, hit the “Allow” tab to give permission in order to download a profile.Now hit the “Install” option.You have to type your secured password if the prompt comes.Then hit the “Install” tab to provide your confirmation.Next, hit the “Restart” button to restart your Apple Watch.Installing watchOS 6.1 through iPhone Thecertificate that you have installed to your iPhone will inform the Watch application that any updates regarding OS 6 or more are available or not.
If your Apple Watch detects any of the updates, it will tell you to download its latest version according to these steps:Firstly, connect the iPhone to the Wi-Fi network and then open your Watch app.Hit the My Watch application to launch.Tap the “General” option.Next, hit the “Software Update” tab.Touch the “Download and Install” tab present at the lowermost portion of your page.Then you have to provide your iPhone password.Next, hit the “Agree” button in order to accept all the rules and regulations related to the software update.Now confirm that your Apple Watch has been charged above 50%.Then attach it to a magnetic charger.Now hit the install tab on your smartphone or also Apple Watch.Now the updated version of watchOS has been installed on your phone, and it will be transferred to your Watch.After the installation process, your Apple Watch will automatically restart your device in order to save all the changes that you have made during installation.
Follow the on-screen instructions to proceed further.Downloading watchOS 6.1 by using Apple watchIn Apple Watch, it seems that Apple has fitted a new mechanism to update watchOS 6.1 without syncing with your iPhone.