了解如何在 iPhone 或 iPad 上打开蓝牙(Bluetooth)很重要，因为它可以帮助您连接到范围内的其他设备和外围设备。然而，虽然有三种简单的方法可以启用 iPhone 的蓝牙(Bluetooth)，但如果您想知道如何在 iPhone 或 iPad 上关闭蓝牙，答案会更加复杂。(Bluetooth)这是因为 iOS 上的蓝牙(Bluetooth)可以暂时或永久禁用。不用担心; 我们在本指南中说得很清楚，因此请继续阅读以了解有关打开或关闭 iPhone 或 iPad蓝牙(Bluetooth)的所有信息：
1. 如何从设置中打开 iPhone 或 iPad上的蓝牙(Bluetooth)
设置(Settings)应用程序可让您在 iPhone 或 iPad 上配置几乎任何东西，包括iOS上的蓝牙(Bluetooth)。iPhone蓝牙(Bluetooth)设置也是激活蓝牙(Bluetooth)芯片最可靠和最直接的方法，因为无论您的 iOS 设备或其设置如何，步骤都是相同的。首先，通过点击其图标启动设置(Settings)应用程序。(launch the Settings app)
在 iPhone 或 iPad 上打开应用程序以访问蓝牙设置(Bluetooth)
iPhone蓝牙(Bluetooth)设置显示在第一部分，然后是其当前状态。点击它继续。
访问iPhone 或 iPad 上的蓝牙设置(Bluetooth Settings)
按下顶部 iPhone(Press)蓝牙(Bluetooth)设置旁边的开关将其打开。这将激活 iPhone 或 iPad 的蓝牙(Bluetooth)，您的 iOS 设备开始寻找并列出范围内的其他蓝牙(Bluetooth)小工具。如果您在配对方面需要帮助，请阅读我们的指南，了解如何将蓝牙设备与您的 iPhone 或 iPad 连接(How to connect Bluetooth devices with your iPhone or iPad)。
在 iPhone 或 iPad 上启用蓝牙设置(Bluetooth)
提示：(TIP:)如果 iPhone蓝牙(Bluetooth)设置屏幕打开，并且您打开了开关，您的 iOS 设备也会对其附近的其他蓝牙设备可见。(Bluetooth)
1.1 如何从设置(Settings)中关闭iPhone 或 iPad 上的蓝牙(Bluetooth)（永久）
如果您不在 iOS 上使用蓝牙(Bluetooth)，最好将其永久禁用并节省电池电量。首先(First)，按照上述步骤再次访问 iPhone 或 iPad 上的蓝牙设置。(Bluetooth)然后，点击 iPhone蓝牙(Bluetooth)设置旁边的开关将其关闭。
如何永久关闭iPhone 上的蓝牙(Bluetooth)
这会完全禁用iOS 设备上的蓝牙(Bluetooth)，从而阻止您使用AirDrop、AirPlay、Find My和Location Services。
2. 如何从控制中心(Control Center)启用iPhone 或 iPad 上的蓝牙(Bluetooth)
控制中心(Control Center)提供了一种更快的方式来启用 iPhone 的蓝牙，(Bluetooth)但您必须知道如何访问它，这取决于您的iPhone 型号(iPhone model)。在较旧的 iPhone 上，您必须从底部向上滑动才能打开控制中心(Control Center)，而在 iPhone X 及更高版本以及 iPad 上，您应该从屏幕右上角向下滑动。
访问控制中心(Control Center)以访问 iPhone蓝牙(Bluetooth)快捷方式
在Control Center中，您可以看到左上窗格中显示的蓝牙图标。(Bluetooth)如果按钮是透明的并且符号被划掉，则蓝牙(Bluetooth)永久关闭，如下所示。
当该功能永久关闭时，蓝牙图标是透明的(Bluetooth)
点击 iPhone蓝牙(Bluetooth)快捷方式启用它，将图标变为蓝色。
如何从控制中心(Control Center)启用iPhone 上的蓝牙(Bluetooth)
2.1 如何从控制中心(Control Center)关闭iPhone 上的蓝牙(Bluetooth)（暂时）
您可能会认为控制中心(Control Center)的快捷方式会禁用iOS 上的蓝牙(Bluetooth)。但是，它只是将您的 iPhone 或 iPad 与范围内的蓝牙配件断开连接，某些(Bluetooth)Apple设备除外。即使您不使用它们，蓝牙(Bluetooth)设备也会在一夜之间耗尽您的电池电量，因此这是防止这种情况发生的快速方法。
打开控制中心(Control Center)并点击左上角的（蓝色）iPhone蓝牙(Bluetooth)快捷方式。该按钮变为浅灰色，您会收到通知，通知您蓝牙(Bluetooth)设备已断开连接，直到明天。
断开 iPhone 或 iPad蓝牙(Bluetooth)，直到第二天
请记住，使用此选项在 iOS 上部分禁用蓝牙(Bluetooth)不会断开Apple设备（如Apple Watch或Apple Pencil ）的连接，也不会阻止您使用AirDrop或AirPlay等功能。最重要的是，您不必记得第二天在 iOS 上打开蓝牙(Bluetooth)，因为第二天早上，它会在当地时间凌晨 5 点完全启用。
注意：(NOTE:)虽然您不能从控制中心永久禁用(Control Center)蓝牙(Bluetooth)，但有一种方法可以使用它来访问第一章中讨论的 iPhone蓝牙设置。(Bluetooth)首先(First)，长按蓝色的 iPhone蓝牙(Bluetooth)快捷方式以展开其部分，如下所示。从展开的窗格中再次按住蓝牙(Bluetooth)图标。
再次按住蓝牙(Bluetooth)图标
这将打开一个显示配对设备的蓝牙窗格。(Bluetooth)点击底部的蓝牙设置(Bluetooth Settings)，然后按照第一章中关于关闭蓝牙的说明进行操作。(Bluetooth)
访问蓝牙设置
3. 如何使用Siri开启或关闭 iPhone 或 iPad 的蓝牙(Bluetooth)
如果您使用的是 Apple 的虚拟助手Siri，您还可以让她在 iPhone 上启用或禁用蓝牙设置。(Bluetooth)命令很直观。激活 Siri(Activate Siri)并说“打开蓝牙”(“Turn on Bluetooth”)以启用它。
如何使用Siri(Siri)在 iPhone 或 iPad 上打开蓝牙(Bluetooth)
要禁用它，请告诉 Siri “关闭蓝牙(“Turn off Bluetooth)”，她会立即按照您的指示进行操作。
Siri可以控制iPhone 或 iPad 上的蓝牙设置(Bluetooth)
提示：(TIP:)如果您想了解有关蓝牙(Bluetooth)技术及其工作原理的更多信息，请阅读什么是蓝牙？如何在 PC 上获取蓝牙(What is Bluetooth? How to get Bluetooth on a PC)。
您是否在 iOS 中一直打开蓝牙？(Bluetooth)
蓝牙(Bluetooth)是将 iPhone 或 iPad 无线连接到其他设备的好方法。但是，我们已经解释过它会更快地耗尽您的电池，因此我们更愿意禁用它。那你呢？您是否打开蓝牙(Bluetooth)？您在 iPhone 或 iPad 上使用哪个选项来启用或禁用蓝牙(Bluetooth)？让我们在评论中知道。
3 ways to turn on or off the iPhone's Bluetooth -
It’s important to know how to turn on Bluetooth on iPhone or iPad because it helps you connect to other devices and peripheralѕ in range. However, while there are three simple wayѕ to enable the iPhonе’s Bluetоoth, the answer is more comрlicated if you’re wondering how to turn off Bluetooth on iPhone or iPad. That is because the Bluеtooth on iOS can be disabled temporarily or permanently. Don’t worry; we make іt all crystаl clear in this guide, so continue reading to find out everything аbout turning your iPhone or iPad’s Bluetooth on or off:
1. How to turn on Bluetooth on iPhone or iPad from Settings
The Settings app lets you configure almost anything on your iPhone or iPad, including the Bluetooth on iOS. The iPhone Bluetooth settings are also the most reliable and straightforward way to activate the Bluetooth chip, because the steps are the same regardless of your iOS device or its setup. To begin, launch the Settings app by tapping on its icon.
Open the app to reach the Bluetooth setting on iPhone or iPad
The iPhone Bluetooth setting is displayed in the first section, followed by its current status. Tap on it to continue.
Access the Bluetooth Settings on iPhone or iPad
Press the switch next to the iPhone Bluetooth setting on top to turn it on. This activates the iPhone or iPad’s Bluetooth, and your iOS device starts looking for and listing other Bluetooth gadgets in range. If you need help pairing with them, read our guide on How to connect Bluetooth devices with your iPhone or iPad.
Enable the Bluetooth setting on iPhone or iPad
TIP: If the iPhone Bluetooth settings screen is open, and you turn on the switch, your iOS device also becomes visible to other Bluetooth devices in its proximity.
1.1 How to turn off Bluetooth on iPhone or iPad from Settings (permanently)
If you don’t use Bluetooth on iOS, it’s best to permanently disable it and save your battery. First, access the Bluetooth settings on iPhone or iPad again by following the steps illustrated above. Then, tap on the switch next to the iPhone Bluetooth setting to turn it off.
How to turn off Bluetooth on iPhone permanently
This completely disables Bluetooth on your iOS device, preventing you from using AirDrop, AirPlay, Find My, and Location Services.
2. How to enable Bluetooth on iPhone or iPad from the Control Center
The Control Center offers a faster way to enable the iPhone’s Bluetooth, but you have to know how to access it, which depends on your iPhone model. On older iPhones, you must swipe up from the bottom to open the Control Center, while on iPhone X and later, as well as on iPads, you should swipe down from the top-right corner of the screen.
Access the Control Center to reach the iPhone Bluetooth shortcut
In the Control Center, you can see the Bluetooth icon displayed inside the upper-left pane. If the button is transparent and the symbol is crossed off, then Bluetooth is permanently turned off, as seen below.
The Bluetooth icon is transparent when the feature is permanently off
Tapping on the iPhone Bluetooth shortcut enables it, turning the icon blue.
How to enable Bluetooth on iPhone from the Control Center
2.1 How to turn off Bluetooth on iPhone from the Control Center (temporarily)
You might think the shortcut from the Control Center disables Bluetooth on iOS. However, instead, it just disconnects your iPhone or iPad from the Bluetooth accessories in range, with the exception of some Apple devices. Even if you’re not using them, Bluetooth devices can drain your battery overnight, so this is a quick way to prevent that from happening.
Open the Control Center and tap on the (blue) iPhone Bluetooth shortcut from the upper-left section. The button becomes light-gray, and you get a notification letting you know Bluetooth devices are disconnected until tomorrow.
Disconnect the iPhone or iPad Bluetooth until the next day
Keep in mind that partially disabling Bluetooth on iOS with this option does not disconnect Apple devices, like the Apple Watch or Apple Pencil, or prevent you from using features like AirDrop or AirPlay. On top of that, you don’t have to remember to turn on the Bluetooth on iOS the next day because, the following morning, it becomes fully enabled at 5.00 AM local time.
NOTE: While you can’t permanently disable Bluetooth from the Control Center, there is a way to use it to reach the iPhone Bluetooth settings discussed in the first chapter. First, touch-and-hold on the blue iPhone Bluetooth shortcut to expand its section, as seen below. Touch-and-hold on the Bluetooth icon again from the expanded pane.
Touch-and-hold on the Bluetooth icon a second time
This opens a Bluetooth pane showing paired devices. Tap on Bluetooth Settings at the bottom, and then follow our instructions about turning off Bluetooth from the first chapter.
Access Bluetooth Settings
3. How to use Siri to turn on or off the iPhone or iPad’s Bluetooth
If you’re using Siri, Apple’s virtual assistant, you can also ask her to enable or disable the Bluetooth setting on iPhone. The commands are intuitive. Activate Siri and say “Turn on Bluetooth” to enable it.
How to turn on Bluetooth on iPhone or iPad with Siri
To disable it, tell Siri to “Turn off Bluetooth,” and she immediately follows your instructions.
Siri can control the Bluetooth settings on iPhone or iPad
TIP: If you want to learn more about Bluetooth technology and how it works, read What is Bluetooth? How to get Bluetooth on a PC.
Do you leave Bluetooth on all the time in iOS?
Bluetooth is a great way to wirelessly connect your iPhone or iPad to other devices. However, we already explained that it drains your battery faster, so we prefer to disable it. What about you? Do you leave Bluetooth on? Which option to enable or disable Bluetooth do you use on your iPhone or iPad? Let us know in the comments.
