您的 iPhone 消耗的数据量比以前多。您知道这一点是因为您不断超出您的数据限额，几乎每个月都会在您的移动数据账单上产生超额费用。
本教程将向您展示如何通过修改一些系统和应用程序设置来减少 iPhone 上的数据使用量。您还将学习如何利用某些应用程序的数据保存功能来减少 iPhone 消耗的数据量。
1.启用低数据模式
低数据模式(Low Data Mode)是一项功能，可减少运行 iOS 13 或更高版本的设备的数据消耗。该功能通过暂时暂停数据密集型进程（如自动更新和下载、数据同步和其他后台任务）来实现这一点。
低数据模式(Low Data Mode)可能会降低流媒体内容的质量。请按照以下步骤为 iPhone 上的蜂窝数据打开低数据模式(Low Data Mode)。
- 前往“设置”(Settings)并点击“蜂窝(Cellular)网络” （或“移动数据(Mobile Data)” ）。
- 选择蜂窝数据选项(Cellular Data Options)（或移动数据选项(Mobile Data Options)）。
- 切换到低数据模式(Low Data Mode)。
如果您的 iPhone 和蜂窝运营商支持 5G 连接，请转到设置(Settings)>蜂窝(Cellular)（或移动数据(Mobile Data)）>蜂窝数据选项(Cellular Data Options)（或移动数据选项(Mobile Data Options)）>数据模式(Data Mode)并打开低数据模式(Low Data Mode)。
对于双 SIM 卡 iPhone，请转到设置(Settings)>蜂窝(Cellular )（或移动数据(Mobile Data)），选择蜂窝数据SIM/number，然后打开低数据模式(Low Data Mode)。
2.禁用不需要的应用程序(Unneeded Apps)的蜂窝数据(Data)
浏览使用移动数据的应用程序列表，并为您很少或从不使用的应用程序关闭数据访问。
转到设置(Settings)>蜂窝(Cellular)（或移动数据(Mobile Data)）并滚动到“蜂窝数据”部分。
iOS 按数据消耗的降序排列应用程序（即从最高到最低）。仔细查看数据使用统计信息以及蜂窝或移动数据的切换，以了解无需互联网访问即可完美离线运行的应用程序。
3. 禁用 Wi-Fi 辅助
Wi-Fi Assist是一项 iOS 功能，可确保您的 iPhone 在 Wi-Fi 连接不佳或速度较慢时保持连接到互联网。假设您的 iPhone 在连接到 Wi-Fi 网络时不加载网页或播放音乐，iOS 会自动切换到蜂窝数据。
虽然这是一项出色的功能，但它可能会导致您的 iPhone 使用比平时更多的蜂窝数据。iOS 中默认启用Wi-Fi辅助。(Assist)如果您有上限或受限的蜂窝数据计划，请前往 iPhone 的设置菜单并禁用该功能。(Head)
转到设置(Settings)>蜂窝(Cellular)网络（或移动数据(Mobile Data)），滚动到页面底部，然后关闭Wi-Fi 辅助(Wi-Fi Assist)。您应该会看到Wi-Fi Assist(Wi-Fi Assist)消耗了多少蜂窝数据的预览。
4. 禁用iCloud Drive 的移动数据使用(Mobile Data Usage)
Wi-Fi 连接最适合执行数据同步操作。不要使用蜂窝网络连接与 iCloud Drive共享文件，除非您拥有无限的蜂窝网络计划。检查您的设置菜单并确保您的 iPhone 没有使用蜂窝数据将文件传输到 iCloud Drive 。
打开设置(Settings)应用程序，点击蜂窝(Cellular)网络（或移动数据(Mobile Data)），滚动到菜单底部，然后关闭iCloud Drive。
5.为蜂窝数据(Cellular Data)禁用后台应用刷新(Background App Refresh)
后台应用程序刷新(Background App Refresh)允许应用程序在暂停到后台时获取新数据和新鲜内容。尽管后台应用程序刷新(Background App Refresh)有其好处，但该功能会导致蜂窝数据使用量增加和电池消耗问题(battery drain issues)。
前往设置(Settings)>常规(General)>后台应用刷新(Background App Refresh)>后台应用刷新(Background App Refresh)并选择Wi-Fi。
这将限制蜂窝数据连接的后台数据使用并减少总体数据消耗。
6.禁用蜂窝数据(Cellular Data)的自动应用更新(App Updates)和下载(Downloads)
如果多台设备与您的Apple ID帐户相关联，iOS 可能会自动将在其他设备上进行的应用和购买下载到您的 iPhone。同样(Likewise)，App Store会使用蜂窝数据在后台自动更新应用程序。
检查App Store设置并确保这些活动使用的是 Wi-Fi(Wi-Fi)，而不是蜂窝数据。
转到设置(Settings)> App Store，然后在“蜂窝数据”部分关闭自动下载(Automatic Downloads)。
接下来，阻止App Store使用蜂窝数据自动播放应用预览视频。点击视频自动播放(Video Autoplay)并选择仅 Wi-Fi(Wi-Fi Only)。
7.更改(Change Download Settings)音频流应用程序(Audio Streaming Apps)的下载设置
如果您在Apple Music或Podcast(Podcasts)中流式传输或购买内容，请确保这些应用程序没有使用蜂窝数据在后台下载内容。
转到“设置”(Settings) > “播客(Podcasts)” > “蜂窝下载(Cellular Downloads)”，然后在“自动下载”部分中关闭“允许通过蜂窝移动(Allow Over Cellular)”和“启用时启用”。(Enable When Following)
对于 Apple Music，打开设置(Settings)，点击音乐，(Music,)然后关闭自动下载(Automatic Downloads)。
如果Spotify是您首选的音乐应用程序，则降低流媒体质量可以节省数据。打开 Spotify(Open Spotify)，进入“设置”(Settings)菜单，选择“音频质量(Audio Quality)”，然后在“蜂窝流媒体”部分选择“低(Low)”或“正常”。(Normal)
8.启用低功耗模式
低功耗模式(Low Power Mode)的主要目的是延长 iPhone 的电池寿命。但是，该功能还会禁用需要大量数据的进程——自动下载、iCloud照片(Photos)、后台应用程序刷新等——从而减少数据使用量。
打开设置(Settings)，选择电池(Battery)，然后开启低功耗模式(Low Power Mode)。更好(Better)的是，打开 iPhone 的控制中心(Control Center)并点击电池图标(Battery icon)。
9. 配置您的应用程序(Apps)以使用更少的数据(Less Data)
有时，第三方即时通讯应用会使用蜂窝数据自动下载媒体文件。检查您的消息应用程序的设置并确保仅通过Wi-Fi进行自动媒体下载。
例如，在 WhatsApp 中，转到设置(Settings)>存储和数据(Storage and Data)，并确保所有媒体类型的“媒体自动下载”都设置为Wi-Fi。
我们还建议切换为通话使用更少的数据(Use Less Data for Calls)。这是一个减少语音和视频通话数据消耗的选项。
在Facebook中，点击菜单图标，进入设置和隐私(Settings & Privacy)>设置(Settings)>媒体(Media)，在“视频质量”设置中选择数据保护程序。(Data Saver)此外，将应用程序设置为仅在 Wi-Fi(On Wi-Fi only)上自动播放视频。
Twitter还具有数据保护程序(Data Saver)功能，可通过加载质量较低的图像和禁用视频自动播放来减少数据使用量。
打开 Twitter设置和隐私(Settings & privacy)菜单，转到辅助功能、显示和语言(Accessibility, display, and languages)>数据使用(Data usage)并打开数据保护程序(Data Saver)。
高质量的流媒体使用大量数据。因此，请降低流媒体应用程序的播放质量，尤其是针对移动数据。
在 YouTube 中，前往设置(Settings)>视频质量偏好(Video quality preferences)>在移动网络上(On mobile networks)，然后选择数据保护程序(Data saver)。查看本教程，了解如何在 YouTube 上最大限度地减少数据使用量，(minimizing data usage on YouTube)以获取更多提示。
对您经常使用的应用程序执行此操作。检查数据保存选项的设置菜单，访问应用程序的支持网站，或联系开发人员寻求帮助。
10.关闭蜂窝数据(Cellular Data)（不使用(Use)时）
如果您不需要蜂窝数据，请禁用它。例如，在玩离线游戏、看书或睡觉时。这样做几天或几周并监控结果。
10 Best Ways to Reduce Data Usage on iPhone
Your iPhone is сonsuming more data than it used to. You know this becаusе you keep going ovеr your data allowance, іncurring overage charges оn your mobile data bill almost every month.
This tutorial will show you how to reduce data usage on your iPhone by modifying some system and app settings. You’ll also learn how to exploit the data-saving features of some apps to reduce the amount of data your iPhone consumes.
1. Enable Low Data Mode
Low Data Mode is a feature that reduces data consumption on devices running iOS 13 or newer. The feature achieves this by temporarily suspending data-heavy processes like automatic updates & downloads, data synchronization, and other background tasks.
Low Data Mode may reduce the quality of streaming content. Follow the steps below to turn on Low Data Mode for cellular data on your iPhone.
- Go to Settings and tap Cellular (or Mobile Data).
- Select Cellular Data Options (or Mobile Data Options).
- Toggle on Low Data Mode.
If your iPhone and cellular carrier support 5G connectivity, go to Settings > Cellular (or Mobile Data) > Cellular Data Options (or Mobile Data Options) > Data Mode and toggle on Low Data Mode.
For dual SIM iPhones, go to Settings > Cellular (or Mobile Data), select the cellular data SIM/number, and toggle on Low Data Mode.
2. Disable Cellular Data for Unneeded Apps
Go through the list of apps using mobile data and turn off data access for apps that you rarely or never use.
Go to Settings > Cellular (or Mobile Data) and scroll to the “Cellular Data” section.
iOS lists apps in descending order of data consumption (i.e., from highest to the lowest). Peruse the data usage statistics and toggle of cellular or mobile data for apps that work perfectly offline without internet access.
3. Disable Wi-Fi Assist
Wi-Fi Assist is an iOS feature that ensures your iPhone stays connected to the internet when you have a poor or slow Wi-Fi connection. Say your iPhone doesn’t load webpages or play music when connected to a Wi-Fi network, iOS automatically switches to cellular data.
While this is a brilliant feature, it might cause your iPhone to use more cellular data than usual. Wi-Fi Assist is enabled by default in iOS. Head to your iPhone’s settings menu and disable the feature if you have a capped or limited cellular data plan.
Go to Settings > Cellular (or Mobile Data), scroll to the bottom of the page, and toggle off Wi-Fi Assist. You should see a preview of how much cellular data Wi-Fi Assist has consumed.
4. Disable Mobile Data Usage for iCloud Drive
A Wi-Fi connection is best for performing data synchronization operations. Don’t share files with iCloud Drive using a cellular connection unless you have an unlimited cellular plan. Check your settings menu and ensure your iPhone isn’t transferring files to iCloud Drive using cellular data.
Open the Settings app, tap Cellular (or Mobile Data), scroll to the bottom of the menu, and toggle off iCloud Drive.
5. Disable Background App Refresh for Cellular Data
Background App Refresh allows applications to fetch new data and fresh content when suspended to the background. Although Background App Refresh has its benefits, the feature causes increased cellular data usage and battery drain issues.
Head to Settings > General > Background App Refresh > Background App Refresh and select Wi-Fi.
That will limit background data usage for cellular data connections and reduce overall data consumption.
6. Disable Automatic App Updates & Downloads for Cellular Data
If multiple devices are linked to your Apple ID account, iOS may automatically download apps & purchases made on other devices to your iPhone. Likewise, App Store automatically updates apps in the background using cellular data.
Check the App Store settings and make sure these activities use Wi-Fi, not cellular data.
Go to Settings > App Store and toggle off Automatic Downloads in the “Cellular Data” section.
Next, stop App Store from automatically playing app preview videos using cellular data. Tap Video Autoplay and select Wi-Fi Only.
7. Change Download Settings for Audio Streaming Apps
If you stream or purchase content in Apple Music or Podcasts, make sure the apps aren’t downloading content in the background using cellular data.
Go to Settings > Podcasts > Cellular Downloads and toggle off Allow Over Cellular and Enable When Following in the “Automatic Downloads” section.
For Apple Music, open Settings, tap Music, and toggle off Automatic Downloads.
If Spotify is your preferred music app, reducing the streaming quality could save data. Open Spotify, go to the Settings menu, select Audio Quality, and select Low or Normal in the “Cellular streaming” section.
8. Enable Low Power Mode
The primary purpose of Low Power Mode is to prolong your iPhone’s battery life. However, the feature also disables data-hungry processes—automatic downloads, iCloud Photos, background app refresh, etc.—thereby reducing data usage.
Open Settings, select Battery, and toggle on Low Power Mode. Better yet, open your iPhone’s Control Center and tap the Battery icon.
9. Configure Your Apps to Use Less Data
Sometimes, third-party instant-messaging apps automatically download media files using cellular data. Check your messaging apps’ settings and ensure automatic media downloads happen only over Wi-Fi.
In WhatsApp, for instance, go to Settings > Storage and Data and make sure “Media Auto Download” is set to Wi-Fi for all media types.
We also recommend toggling on Use Less Data for Calls. It’s an option that reduces data consumption for voice and video calls.
In Facebook, tap the menu icon, go to Settings & Privacy > Settings > Media, select Data Saver in the “Video Quality” settings. Additionally, set the app to autoplay videos On Wi-Fi only.
Twitter also has a Data Saver feature that reduces data usage by loading lower-quality images and disabling video autoplay.
Open Twitter Settings & privacy menu, go to Accessibility, display, and languages > Data usage and toggle on Data Saver.
High-quality streaming uses a lot of data. So, lower the playback quality in your streaming apps, precisely for mobile data.
In YouTube, head to Settings > Video quality preferences > On mobile networks and select Data saver. Check out this tutorial on minimizing data usage on YouTube for more tips.
Do this for apps that you use frequently. Check the settings menu for data-saving options, visit the apps’ support website, or contact the developers for help.
10. Turn Off Cellular Data (When Not In Use)
Disable cellular data if you don’t have any need for it. For instance, when playing an offline game, reading a book, or going to bed. Do this for some days or weeks and monitor the results.
