I can't connect a watch to my iPhone

vaseem209 Said:

"I can't connect a watch to my iPhone"

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Troubleshooting Watch:iPhone Connectivity:

For reference:

• If you can't Pair an Apple Watch with your iPhone - Apple Support

• If you can't Connect a Bluetooth Accessory to your iPhone, iPad, or iPod touch - Apple Support

That is not an Apple Watch.

Contact the device vendor, if whatever app the vendor suggests using to scan that coce is not recognizing and processing that QR code.

You’ll also want to update your iPhone 12 to current (15.5), if you’re still using iOS 14 as indicated by the footer here.