I no longer have my old phone due it broke
My old phone was broken and wouldn’t let me log on to open it how do I now use my watch without being able to access my old phone ?????
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See the document How to pair your Apple Watch with a new iPhone - Apple Support
There's a long section at the end about what to do if you don't have the old phone. I'd copy it to here but the forum software would make a real mess of it so just read it on the web page.