I forgot lost my I phone and now I can’t pair my I watch to another device

Re: "I forgot lost my I phone and now I can’t pair my I watch to another device"

If it is a new iPhone to the Watch: You can follow: "If you don't have your old iPhone" in the article below

How to pair your Apple Watch with a new iPhone - Apple Support

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Re: "I forgot my iCloud and email "

You would likely have used your Apple ID (email address) and Apple ID password to log-in here,

so can likely use those to log-in to iCloud ... (same would be used for log-in to Messages, FaceTiome etc.)

or

You could use the steps in this article to find your Apple ID email

If you forgot your Apple ID email address or phone number - Apple Support

and

If you forgot your Apple ID password - Apple Support

Once you can access your Apple ID account: if needed:

How to change your Apple ID to a different email address:

Change your Apple ID - Apple Support

to recover your appleID read If you forgot your Apple ID password - Apple Support

to pair with a new iphone read How to pair your Apple Watch with a new iPhone - Apple Support

scroll to section "If you don't have your old iPhone or you erased it"