I brought a Apple Watch for a decent price but the person do not remember there activated code so how can I unlock it so I can pair it to my phone if Ypu understand?

Unfortunately, there is no way to get around the activation code without the original owner's Apple ID and password. Activation Lock is a security feature that prevents stolen or lost Apple devices from being used by unauthorized people. The only way to remove Activation Lock is for the original owner to disable it.

If you can contact the original owner, they can unpair the Apple Watch from their iPhone and remove Activation Lock. They can do this by following these steps:

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2. On their iPhone, open the Apple Watch app.
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5. Tap the My Watch tab.
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8. Tap the name of their Apple Watch.
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11. Tap Unpair Apple Watch.
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14. Enter their Apple ID password and tap Unpair.
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Once the Apple Watch is unpaired, the original owner can remove Activation Lock by going to iCloud.com and signing in with their Apple ID. Then, they can click on Find My, select the Apple Watch, and click Erase Apple Watch.

If you cannot contact the original owner, you can take the Apple Watch to an Apple Store and request that they remove Activation Lock for you. You will need to provide proof of purchase for the Apple Watch.

Here are some tips to avoid this situation in the future:

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• Only buy Apple devices from trusted sources.
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• Ask the seller for the original Apple ID and password for the device.
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• Make sure that Activation Lock is turned off before you buy the device.
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I hope this helps!