1Password isn't available for Apple Watch on ANY iPad, since you can't sync an Apple Watch with an iPad (yet?).
1Password Version: 6.4 (640009)
Extension Version: Not Provided
OS Version: iOS 9.3.1
Sync Type: Dropbox
Hi @Zev Eisenberg,
thanks so much for pointing this out. You are right that Apple Watch is not available on any iPad. We will do better here in the future.