How do I activate my iPhone 6
Please I need my iPhone 6 to be activated
Apple Watch Series 9
It depends upon what exactly you need to activate on it.
Start with signing into it with your account information.
Read this support article to learn how to sign in with your Apple ID on various kinds of devices --> Sign in with your Apple ID - Apple Support
For an Apple Mobile device:
1. Open the Settings app.
2. Tap Sign in to your [device].
3. Enter your Apple ID and password.
4. If prompted, enter the six-digit verification code sent to your trusted device or phone number and complete sign in.