Turn on your iPhone and Apple Watch
Bring the Apple Watch close to your iPhone
Make sure Bluetooth is turned on
Open the Watch app on your iPhone
Tap Start Pairing
Hold the iPhone over the animation on the Apple Watch
Follow the on-screen instructions
Choose Set Up for Myself or Set Up for a Family Member
Sign in with your Apple ID if prompted
Set a passcode
Choose your settings and preferences
Wait for the sync to finish
Keep both devices close until setup is complete