Passcode restrictions
If you're a device administrator, you should be aware of the following rules when setting up passcode restrictions. The restrictions you set can also affect an Apple Watch when it's paired to a managed iPhone.
Numeric passcodes
Apple Watch supports numeric passcodes. If your restrictions allow numeric passcodes, Apple Watch respects other passcode restrictions that you've set.
For example, if your users are required to set an iPhone passcode of at least 6 digits with no repeating digits, they must create an Apple Watch passcode that also meets those requirements. It's a good idea to use a different passcode than the one used on the iPhone.
Alphanumeric or complex passcodes
If you've set up restrictions that require a passcode using letters or special characters on an iPhone, you can't set a passcode on the Apple Watch. Instead, your users must unlock their iPhone to unlock their Apple Watch.
Learn more
If you've forgotten your iPhone or Apple Watch passcode, see these articles instead: