iPhone 上的面容 ID 是一种非常安全的生物特征认证形式(incredibly secure form of biometric authentication)。它也非常快，使解锁设备变得轻而易举。但是，一旦您戴上口罩来对抗COVID-19，您就别无选择，只能重新使用那个缓慢而繁琐的设备密码。令人抓狂(Maddening)，对吧？
苹果(Apple)知道这一点。因此，无论您是否戴上口罩，它都实现了使用Face ID解锁 iPhone 的方法。(Face ID)关键——你需要一个Apple Watch。快速(Quick)注意：目前，这仅用于解锁您的 iPhone，您不能使用它来解锁依赖Face ID的应用程序。
如何使用带面罩的(Mask)面容 ID(Face ID)解锁 iPhone的工作(Works)原理
戴着口罩时，您不必一遍又一遍地输入 iPhone 的 4-6 位设备密码。如果您还使用Apple Watch并且两台设备至少运行 iOS 14.5 和 watchOS 7.4，您可以重新使用Face ID，即使您已经蒙上了脸。这就是它的工作原理。
每当您举起 iPhone 使用 Face ID(hold up your iPhone to use Face ID)时，前置摄像头旁边的红外传感器就会启动并尝试识别您的身份。如果成功，它将解锁设备。如果失败，它会跳过询问您的密码，而是与您的Apple Watch通信。
只要您的Apple Watch受密码保护、解锁并系在手腕上，Face ID就会认为是您本人，并授予您对 iPhone 的访问权限。与单独使用Face ID(Face ID)解锁设备相比，它的速度很快，只需几分之一秒。你不会注意到差异。
这确实引发了多个与安全相关的问题。但Apple将(Apple)Face ID设计为与Apple Watch配合使用，从而最大限度地减少其他人未经许可访问您的 iPhone 的机会。
- 您必须使用受密码保护的Apple Watch。
- 您必须将Apple Watch绑在手腕上并解锁，然后才能使用该设备验证您的 iPhone。它使用称为手腕检测(Wrist Detection)的内置功能来确定您的手表在附近。
- 每次将Apple Watch(Apple Watch)绑在手腕上时（例如，当您离开家时），您还必须使用面容 ID(Face ID)或其密码解锁您的 iPhone 。
- Apple Watch会通过轻点手腕来通知您，然后在面容ID(Face ID)为您解锁设备时发出通知。该通知具有锁定 iPhone(Lock iPhone)选项，如果其他人设法在您不知情的情况下解锁您的 iPhone，您可以点击该选项来锁定您的设备。
- 如果您的 iPhone 检测到突然远离Apple Watch ，它会回退到请求密码。
- 您的Apple Watch无法验证Apple Pay交易或提供对受面容 ID 保护的(Face ID-protected)应用程序的访问权限。
如何启用Apple Watch以使用Face ID解锁(Unlock)iPhone
允许面容 ID(Face ID)使用Apple Watch解锁 iPhone 的功能在默认情况下未启用。您必须通过深入了解iOS 设备上的人脸 ID(Face ID)和密码设置来手动打开它。(Passcode)
如果您在执行以下步骤时遇到问题，请跳至“无法激活 Apple Watch(Activate Apple Watch)以解锁 iPhone？这是做什么”部分，然后重试。
1. 打开 iPhone 上的设置(Settings )应用程序。
2. 向下滚动并点按面容 ID 和密码(Face ID & Passcode)。
3. 输入您的设备密码。
4. 向下滚动到使用 Apple Watch 解锁(Unlock With Apple Watch)部分。然后，打开[你的名字] 的 Apple Watch([Your name]’s Apple Watch)旁边的开关。
5. 点击开启(Turn On)。
6. 退出设置应用程序。
如何使用带面罩(Mask)的面容ID解锁 iPhone(Face ID)
您现在可以使用面容 ID(Face ID)解锁您的 iPhone，尽管您戴着面罩。以下步骤将证明这一点。
1. 将Apple Watch系在手腕上。然后，点击表盘并输入您的 watchOS 密码。
2. 使用Face ID(Face ID)（如果您还没有戴口罩）或您的设备密码 解锁 iPhone 。
3. 尝试锁定，然后在戴上口罩的情况下解锁您的 iPhone。您的 iPhone 将立即通过您的Apple Watch进行身份验证和解锁。
您的Apple Watch将轻触您的手腕并显示一条通知，标有[Your Name]'s iPhone Unlocked by this Apple Watch。如果您无意中解锁了您的 iOS 设备（或者如果其他人未经许可这样做），请点击锁定 iPhone选项。(Lock iPhone)
每当您摘下并重新佩戴Apple Watch时，您必须再次正常解锁您的 iPhone，然后才能在佩戴面罩的情况下使用面容 ID访问设备。(Face ID)
无法激活 Apple Watch(Activate Apple Watch)来解锁 iPhone？这是做什么
您的 iPhone 和Apple Watch必须运行 iOS 14.5 和 watchOS 7.4 或更高版本。如果没有，您将无法激活允许您在戴上面具的情况下使用面容 ID的功能。(Face ID)即使您安装了最新版本的 iOS 和 watchOS，检查更新仍然是一个好主意。它们通常包含对已知问题的改进和修复。
此外，您的Apple Watch应受密码保护，并启动并运行手腕检测。(Detection)按照以下说明进行操作应确保一切正常。
更新 iPhone(Update iPhone)
1. 打开 iPhone 上的设置(Settings )应用程序。
2. 点击常规(General)。
3. 点击软件更新(Software Update)。
4.等到(Wait)您的 iPhone 完成对新软件更新的扫描。
5. 点击下载并安装(Download and install)。
更新 Apple Watch(Update Apple Watch)
1. 在 iPhone 上打开Watch应用程序。
2. 点击常规(General)。
3. 点击软件更新(Software Update)。
4. 等待您的 iPhone 完成对新 watchOS 更新的扫描。
5. 点击下载并安装(Download & Install)。
将密码添加到 Apple Watch(Add Passcode to Apple Watch)
1. 按下Apple Watch 上的数码表冠，然后点击(Digital Crown)设置(Settings)。
2. 向下滚动并点击密码(Passcode)。
3. 点击开启密码(Turn Passcode On)。然后，设置密码。
在 Apple Watch 上激活手腕检测(Activate Wrist Detection on Apple Watch)
1. 按下iPhone 上的Digital Crown并点击(Digital Crown)Settings。
2. 向下滚动并点击密码(Passcode)。
3.向下滚动屏幕并打开(Scroll)手腕检测(Wrist Detection)旁边的开关。
(Face ID)使用Apple Watch进行(Apple Watch)面容 ID：安全可靠
用Apple Watch解锁你的 iPhone可以省去使用密码的麻烦，但它也给了你另一个永远不要在公共场合摘下口罩的理由。
任何支持 watchOS 7.4 或更高版本的Apple Watch都应该可以工作。(Apple Watch)因此，如果您还没有，它是一种比换用带有Touch ID的 iPhone 便宜得多的解决方案。Apple Watch还具有许多与健康相关的好处(numerous health-related benefits)，使其成为一项值得投资的产品。
How to Unlock an iPhone Using Apple Watch With a Mask On
Face ID on the iPhone is an incredibly secure form of biometric authentication. It’s also super-fast and makes unlocking the device a breeze. But once you don your face mask to combat COVID-19, you have no recourse but to revert to using that slow and cumbersome device passcode. Maddening, right?
Apple knows that. So, it has implemented means to unlock an iPhone with Face ID regardless of whether you have a mask on or not. The catch—you need an Apple Watch. Quick note: currently, this is only for unlocking your iPhone, you can’t use it to unlock apps that rely on Face ID.
How Unlocking an iPhone Using Face ID With a Mask On Works
You don’t have to keep punching in your iPhone’s 4-6 digit device passcode over and over again while wearing a face mask. Provided that you also use an Apple Watch and that both devices run at least iOS 14.5 and watchOS 7.4, you can go back to using Face ID, even when you’ve got your face covered. Here’s how that works.
Whenever you hold up your iPhone to use Face ID, the infrared sensor next to the forward-facing camera kicks in and attempts to identify you. If it succeeds, it unlocks the device. If it fails, it skips asking you for the passcode and communicates with your Apple Watch instead.
As long as your Apple Watch is passcode-protected, unlocked, and strapped to your wrist, Face ID deems that it’s you and grants you access to the iPhone. It’s fast and only takes a fraction of a second longer than unlocking the device with Face ID alone. You won’t notice the difference.
That does raise multiple security-related concerns. But Apple has designed Face ID to work in conjunction with the Apple Watch in a way that minimizes the chances of anyone else accessing your iPhone without permission.
- You must use a passcode-protected Apple Watch.
- You must strap the Apple Watch to your wrist and unlock it before you can use the device to authenticate your iPhone. It uses a built-in feature called Wrist Detection to determine that your watch is near.
- You must also unlock your iPhone using Face ID or its passcode each time you strap your Apple Watch to your wrist—e.g. when you leave home.
- Your Apple Watch notifies you with a tap on the wrist, followed by a notification when Face ID unlocks the device for you. The notification features a Lock iPhone option that you can tap to lock your device if someone else manages to unlock your iPhone without you knowing.
- Your iPhone shall fall back to requesting a passcode if it detects sudden movement away from the Apple Watch.
- Your Apple Watch cannot verify Apple Pay transactions or provide access to Face ID-protected apps.
How to Enable an Apple Watch to Unlock iPhone With Face ID
The functionality that allows Face ID to unlock an iPhone using an Apple Watch isn’t active by default. You must turn it on manually by digging into the Face ID & Passcode settings on your iOS device.
If you run into trouble performing the steps below, skip ahead to the “Can’t Activate Apple Watch to Unlock iPhone? Here’s What to Do” section and retry.
1. Open the Settings app on your iPhone.
2. Scroll down and tap Face ID & Passcode.
3. Enter your device passcode.
4. Scroll down to the Unlock With Apple Watch section. Then, turn on the switch next to [Your name]’s Apple Watch.
5. Tap Turn On.
6. Exit the Settings app.
How to Unlock an iPhone Using Face ID With a Mask On
You’re now ready to use Face ID to unlock your iPhone despite wearing a face mask. The following steps shall demonstrate that.
1. Strap the Apple Watch to your wrist. Then, tap the watch face and enter your watchOS passcode.
2. Unlock the iPhone once using Face ID (if you’ve yet to wear your mask) or your device passcode.
3. Try locking, and then unlocking your iPhone with a face mask on. Your iPhone will authenticate and unlock itself via your Apple Watch immediately.
Your Apple Watch will tap your wrist and display a notification labeled [Your Name]’s iPhone Unlocked by this Apple Watch. Tap the Lock iPhone option if you unintentionally unlocked your iOS device (or if someone else did that without permission).
Whenever you take off and re-strap your Apple Watch, you must unlock your iPhone normally again before you can access the device using Face ID while wearing a face mask.
Can’t Activate Apple Watch to Unlock iPhone? Here’s What to Do
Your iPhone and Apple Watch must run iOS 14.5 and watchOS 7.4 or later. If not, you can’t activate the functionality that allows you to use Face ID with a mask on. Even if you have the latest versions of iOS and watchOS installed, it’s still a good idea to check for updates. They often contain improvements and fixes for known issues.
Also, your Apple Watch should be passcode-protected and have Wrist Detection up and running. Working your way through the instructions below should ensure that everything’s in order.
Update iPhone
1. Open the Settings app on your iPhone.
2. Tap General.
3. Tap Software Update.
4. Wait until your iPhone finishes scanning for new software updates.
5. Tap Download and install.
Update Apple Watch
1. Open the Watch app on your iPhone.
2. Tap General.
3. Tap Software Update.
4. Wait for your iPhone to finish scanning for new watchOS updates.
5. Tap Download & Install.
Add Passcode to Apple Watch
1. Press the Digital Crown on your Apple Watch and tap Settings.
2. Scroll down and tap Passcode.
3. Tap Turn Passcode On. Then, set up a passcode.
Activate Wrist Detection on Apple Watch
1. Press the Digital Crown on your iPhone and tap Settings.
2. Scroll down and tap Passcode.
3. Scroll down the screen and turn on the switch next to Wrist Detection.
Face ID With Apple Watch: Safe and Secure
Unlocking your iPhone with an Apple Watch removes the bother of using a passcode, but it also gives you another reason never to take off your face mask in public.
Any Apple Watch supporting watchOS 7.4 or later should work. So if you don’t have one already, it’s a much cheaper solution than, say, switching to an iPhone with Touch ID. An Apple Watch also comes with numerous health-related benefits, making it a worthy investment.
