You cannot fully pair an Apple Watch with an Android phone
Apple Watch requires an iPhone for setup and activation
Use an iPhone to set up the Apple Watch first
Keep the Apple Watch connected to the iPhone for syncing and management
If the Apple Watch is cellular, contact your carrier to confirm compatibility
You may use the Apple Watch independently for limited functions after setup
You cannot receive full Android notifications, calls, or app syncing on Apple Watch
For full smartwatch use with Android, choose an Android-compatible watch instead