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# deviceOwnerAuthenticationWithWatch

User authentication with Apple Watch.

```
static var deviceOwnerAuthenticationWithWatch: LAPolicy { get }
```

## Discussion

You use the [`deviceOwnerAuthenticationWithWatch`](/documentation/LocalAuthentication/LAPolicy/deviceOwnerAuthenticationWithWatch) policy when calling the [`evaluatePolicy(_:localizedReason:reply:)`](/documentation/LocalAuthentication/LAContext/evaluatePolicy(_:localizedReason:reply:)) method to authenticate the user with Apple Watch. If the evaluation method can’t find a nearby, paired Apple Watch running watchOS 6 or later, it returns the [`watchNotAvailable`](/documentation/LocalAuthentication/LAError-swift.struct/watchNotAvailable) error.

During authentication, the system presents a dialog that resembles the dialog presented for biometric authentication. The user confirms authentication by double-clicking the watch’s side button.

To allow the user to authenticate either with an Apple Watch or with biometrics, use the [`deviceOwnerAuthenticationWithBiometricsOrWatch`](/documentation/LocalAuthentication/LAPolicy/deviceOwnerAuthenticationWithBiometricsOrWatch) policy instead. To allow the user to authenticate with either of these options or a password, use the [`LAPolicy.deviceOwnerAuthentication`](/documentation/LocalAuthentication/LAPolicy/deviceOwnerAuthentication) policy.

---

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