Turn on your Apple Watch by pressing and holding the side button until the Apple logo appears
Bring your iPhone near the Apple Watch
Make sure Bluetooth is turned on and your iPhone is connected to Wi-Fi or cellular
Open the Watch app on your iPhone
Tap Start Pairing
Hold your iPhone over the animation on your 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
Create or enter your passcode
Choose your settings and preferences
Wait for your apps and data to sync
Keep both devices close together until setup finishes