Here after some question you should ask yourself regarding iPhone X FaceID support in XenMobile

Question:
Is the iPhone X feature of FaceID supported in XenMobile?
Answer:
Yes, FaceID authentication is supported with XenMobile. iPhone X FaceID uses the same APIs as the Touch ID feature in other iOS devices.

Question:
Will there be merge of both functions (Touch ID and FaceID), since it depends on the iPhone, which feature is used?
Answer:
Since iPhone X FaceID uses the same APIs as the Touch ID feature in other iOS devices. So for iPhone X you will be prompted to use FaceID, and for other iOS devices you will be prompted to use TouchID. Since it depends on the iPhone, which feature is used (for Example iPhone 7 – TouchID, iPhone X – FaceID)

Question:
How will Secure Hub utilize the Face ID feature?
Answer:
For the first time when Face ID is setup and we access Secure Hub, we are prompted if we want to use Face ID instead of PIN. If you select Yes, you can use Face ID for offline authentication every time instead of the PIN.

Question:
Will end users ever need to enter their PIN instead of the FaceID?
Answer:
End users will still have to enter PIN whenever online authentication through NetScaler Gateway is required. This is required in the following instances:

  1. The user’s session has expired.
  2. The user reboots the device.
  3. ​Secure Hub is not currently running and the user launches it or an MDX app.

Question:
Will disabling or blocking camera create any issue with FaceID recognition?
Answer:
FaceID uses a different API than the regular Camera APIs.  It uses the same API for TouchID.  The block camera policy will not block FaceID.