Turn on your Apple Watch by pressing and holding the side button
Bring your iPhone close to the Apple Watch
Make sure Bluetooth and Wi-Fi are turned on on your iPhone
Open the Apple Watch app on your iPhone
Tap Start Pairing
Hold your iPhone over the animation on the Apple Watch
Wait for the pairing to complete
Choose Set Up for Myself or Set Up for a Family Member
Follow the on-screen instructions to sign in with your Apple ID
Set a passcode for your Apple Watch
Choose your settings, apps, and preferences
Wait for the sync to finish
Keep your iPhone and Apple Watch close together during setup