Get the watch but do not activate it.
Then the person who receives it would follow the steps below.
- Make sure the Apple Watch is turned on and open the Watch App on the primary iPhone. Click "Start Pairing."
- Hold the Apple Watch up to the iPhone’s camera and align it to the frame shown on the screen.
- Apple Watch is now paired. Click on "Set Up Apple Watch" on the app screen.
- Select the "Wrist Preference" and answer the question.
- Review and agree to the "Terms and Conditions."
- On the "Shared Settings" screen, tap "OK."
- On "Apple Watch Passcode" screen select "Create a Passcode" or "Don't Add Passcode."
- On the "Activity" screen, choose "Set up Activity" or "Skip This Step."
- On the "Emergency SOS Screen," tap "Continue."
- In "Cellular Setup" on the app, tap "Set Up Cellular" to activate cellular service.
- Next you'll see "Choose Plan." Select the "$15 Unlimited Apple Watch Plan" and tap "Next."
- Review and verify a 911 Registered Location and tap "Next."
- Review and agree to the "Terms of Service."
- Tap "Submit" to send the activation request.
- Tap "OK" on the "Congratulations" screen.
- When screen displays a message of "Cellular is Ready," tap "Continue."
- Tap "Install All" or "Choose Later" for installing available apps.
- After the sync is done, you will receive a "Welcome to Apple Watch App" screen. Tap "OK."