Does Siri needs internet in apple watch nike+ and airpods?

Hi

To use Siri, Apple Watch needs to be connected to the internet, whether via a connection with the paired iPhone (which is connected to the Internet via Wi-Fi or cellular data) or via a direct Wi-Fi connection to a known, compatible network:

• Use Siri on your Apple Watch - Apple Support
• About Bluetooth and Wi-Fi on Apple Watch - Apple Support
• How to use your Apple Watch without your iPhone nearby - Apple Support