如果您使用 iPhone 一段时间后发现它的性能比平时慢，您总是缺少存放新物品的空间，或者电池使用时间不超过几个小时，您需要监控三个设备的使用情况主要成分。
检查 iPhone 的 RAM(Checking the RAM)、CPU和电池使用情况可帮助您确定电池是否已耗尽或手机是否需要更换。
它还可以帮助您了解如何维护您的设备以获得更好的性能，以便它可以完成您使用它的任务，同时节省您必须花费在昂贵的更换和维修上的资金。
这与监控笔记本电脑中的 CPU 或 GPU( monitoring the CPU or GPU in your laptop)不同，但您可以使用几种简单的方法来检查 iPhone 上的CPU以及电池寿命和内存使用情况。
没有内置的方法来监控你的 iPhone 的CPU或RAM，但你可以从 App Store 获得一些免费和付费的 CPU 应用程序(free and paid CPU apps you can get from the App Store)。对于本指南，我们将向您展示如何使用Lirum Device Info Lite应用程序进行操作。
对于电池寿命和健康状况，您可以使用本机设置来检查这些，或者如果您愿意，可以使用第三方应用程序。
如何监控 iPhone 上的 RAM 使用情况(How To Monitor RAM Usage On An iPhone)
在Apple的主题演讲中，您可能没有听说过 iPhone RAM等规格，甚至在公司网站上也找不到此类信息。但是，您可以从不同的来源找到它，因为一些政府的监管机构要求Apple向他们提交这些详细信息。例如，中国的TENAA（工业(Industry)和信息化部(Information Technology)）就有(Ministry)这个信息。
对于 8 Plus、XS Max、XS、X 和 XR 等最新款 iPhone，RAM大小为 3GB 或 4GB，具体取决于型号，电池容量介于 2,675mAh 和 3,174mAh 之间。
如前所述，您的 iPhone 上没有直接的本地设置来监控和/或查看您的 iPhone 的实际RAM大小，但您可以使用Lirum Device Info Lite应用程序来检查实际和使用的内存。
Lirum Device Info Lite( Lirum Device Info Lite)应用程序免费提供，可帮助您检索 iPhone 的规格，同时监控其性能。
要检查iPhone 上的RAM，请在 iPhone 上下载并安装该应用程序。启动应用程序并转到主屏幕。点击屏幕左上方的选项(Options)（三个水平线）。
接下来，点击此设备(This Device)。
点击系统(System)。检查您想要的指标并在完成后退出应用程序。
如何检查 iPhone 上的 CPU 使用率
您的 iPhone 可能会限制时钟周期以节省电池电量(save battery power)，但如果设备容量不足，您需要检查其CPU频率。要检查iPhone 上的CPU ，您也可以在此处使用(CPU)Lirum Device Info Lite应用程序。
它具有实时多核优化CPU使用监视器，可让您查看实时CPU使用图并查看以下指标：
- GPU核心数
- 显卡型号
- CPU核心基础
- CPU 当前时钟和最大时钟
- 对比度
您还可以通过实时内存分配图、内存时钟、内存量等查看 iPhone 的内部活动和系统数据。
要检查 iPhone 上的 CPU 使用率(check CPU usage)，请启动应用程序并转到主屏幕。点击屏幕左上方的选项(Options)（三个水平线）。
接下来，点击此设备(This Device)。
点击CPU。
检查您想要的指标并在完成后退出应用程序。
您也可以返回主屏幕并点击工具(Tools)。
点击CPU 监视器(CPU Monitor)。
检查 iPhone CPU性能的图形表示。
如何在 iPhone 上监控电池使用情况(Battery Usage)
您还可以检查 iPhone 的电池寿命和健康状况或性能。但与需要应用程序检查RAM和CPU使用情况不同的是，您可以使用 iPhone 上的本机设置，也可以根据需要使用第三方应用程序。
要检查 iPhone 上的电池，请打开设置(Settings)并点击电池(Battery)。
轻点“电池健康(Battery Health)”以检查健康状况和性能管理功能，该功能通过动态管理 iPhone 的性能来防止意外关机。它还可以自动关闭您的设备。
如果您的 iPhone 电池无法立即提供最大电量，则启用此功能，并且仅在第一次意外关机发生后才会启用。它适用于从 iOS 13.1 开始的 iPhone 6 或更新机型，但您可能不会注意到该功能对后来的 iPhone 机型的影响，因为它们具有更先进的软件和硬件设计。
在Battery Health屏幕上，您可以查看有关电池峰值性能和容量的信息。后者测量相对于你的 iPhone 电池是新电池时的容量。
如果您注意到容量较低，那是因为电池会随着时间发生化学老化，因此每次充电之间的使用时间会减少，这会影响其提供最佳性能的能力。
要检查电池寿命，您需要访问Apple Store或转到本机设置(Settings)应用程序并点击电池(Battery)。
然后，您可以检查电池百分比、应用程序的电池使用情况、充电水平和其他重要指标。
如果您更喜欢使用第三方应用程序，您可以这样做并检查所有三个指标：CPU、RAM和电池。
对于本指南，我们一直在使用免费的Lirum Device Info Lite应用程序。要使用此应用程序检查您的电池，请转到主(Home)屏幕并点击此设备，(This Device,)然后点击电池(Battery)。
检查您要监控的电池使用情况统计信息，完成后退出应用程序。
您也可以前往主屏幕并点击工具(Tools)，然后点击电池(Battery)。
检查您要监控的统计数据，例如电池百分比、磨损程度、实际电压、充电程度等。
监控你的 iPhone 统计数据
随着我们越来越多地使用智能手机完成大部分日常计算任务，更加关注它们的性能是有意义的。今天选择智能手机不仅仅是移动操作系统的偏好和美学问题。这主要是关于性能。
购买时您可能无法看到 iPhone 的处理器或内核数量，但至少您现在知道如何检查 iPhone 的RAM、CPU和电池，以便更好地维护您的设备。
Monitoring RAM, CPU and Battery Usage On Your iPhone
If you’ve had your iPhone fоr some time аnd you notice its performance is slower than usual, уou cоnstantly lack spaсe fоr new items, оr the battery doesn’t last more than a couple of hours, you need to monitor the usage of three maјor components.
Checking the RAM, CPU, and battery usage of your iPhone helps you determine whether your battery is wearing down or the phone needs a replacement altogether.
It also helps you to know how to maintain your device for better performance so it can deliver on the kind of tasks you use it for while saving money that you’d otherwise have to spend on costly replacements and repairs.
It’s not the same as monitoring the CPU or GPU in your laptop, but there are several easy methods you can use to check the CPU on your iPhone as well as the battery life and memory usage.
There’s no built-in way of monitoring your iPhone’s CPU or RAM, but there are several free and paid CPU apps you can get from the App Store. For this guide, we’re going to show you how to do it using the Lirum Device Info Lite app.
For the battery life and health, you can use the native settings to check these, or a third-party app if you prefer.
How To Monitor RAM Usage On An iPhone
You may not hear about specs like iPhone RAM during an Apple keynote, or even find such information on the company’s website. However, you can find it from different sources because some governments’ regulatory agencies require Apple to file these details with them. For example, China’s TENAA (Ministry of Industry and Information Technology) has this information.
For the latest iPhones such as the 8 Plus, XS Max, XS, X, and XR, the RAM size is either 3GB or 4GB depending on the model, with battery capacity ranging between 2,675mAh and 3,174mAh.
As mentioned earlier, there’s no direct, native setting on your iPhone to monitor and/or see the actual RAM size of your iPhone, but you can use the Lirum Device Info Lite app to check the actual and used memory.
The Lirum Device Info Lite app is available for free and can help you retrieve your iPhone’s specifications while monitoring its performance.
To check RAM on your iPhone, download and install the app on your iPhone. Launch the app and go to the home screen. Tap Options (three horizontal lines) at the upper left side of the screen.
Next, tap This Device.
Tap System. Check the metrics you want and exit the app once you’re done.
How to Check CPU Usage on iPhone
Your iPhone may limit the clocking cycle to save battery power, but if the device is running out of full capacity, you need to check its CPU frequency. To check the CPU on iPhone, you can use the Lirum Device Info Lite app here too.
It has a real-time multicore optimized CPU usage monitor that lets you watch real-time CPU usage graphs and see metrics like:
- Number of GPU cores
- GPU model
- CPU Core Base
- CPU Current Clock and Maximum Clock
- Contrast Ratio
You can also see your iPhone’s internal activity and system data with a real-time memory allocation graph, memory clock, amount of memory, and much more.
To check CPU usage on your iPhone, launch the app and go to the home screen. Tap Options (three horizontal lines) at the upper left side of the screen.
Next, tap This Device.
Tap CPU.
Check the metrics you want and exit the app once you’re done.
You can also go back to the home screen and tap Tools.
Tap CPU Monitor.
Check the graphical representation of your iPhone’s CPU performance.
How to Monitor Battery Usage on iPhone
You can also check the battery life and health or performance of your iPhone. But unlike checking RAM and CPU usage that requires an app, you can use the native settings on your iPhone or use a third-party app if you prefer.
To check the battery on iPhone, open Settings and tap Battery.
Tap Battery Health to check the health and the performance management feature that prevents unexpected shutdowns by dynamically managing your iPhone’s performance. It can also automatically turn your device off.
This feature is enabled if your iPhone battery can’t deliver maximum power instantaneously, and comes on only after the first unexpected shutdown happens. It applies to iPhone 6 or newer models starting with iOS 13.1, but you may not notice the effects of the feature on the later iPhone models as they have more advanced software and hardware design.
On the Battery Health screen, you can see information about your battery’s peak performance capability and capacity. The latter measures the capacity relative to when your iPhone’s battery was new.
If you notice the capacity is lower, it’s because the battery chemically ages with time, thus you get fewer usage hours between each charge, and this affects its ability to deliver the best performance.
To check the battery life, you’ll need to visit an Apple Store or go to the native Settings app and tap Battery.
You can then check the battery percentage, battery usage by app, charge levels, and other important metrics.
If you prefer to use a third-party app, you can do so and check all three metrics: CPU, RAM, and battery.
For this guide, we’ve been using the free Lirum Device Info Lite app. To check your battery using this app, go to the Home screen and tap This Device, and tap Battery.
Check the battery usage statistics you want to monitor and exit the app when you’re done.
You can also go to the home screen and tap Tools and then tap Battery.
Check the stats you want to monitor like the battery percentage, wear level, actual voltage, charging level, and more.
Monitoring Your iPhone Stats
As we increasingly use our smartphones for most of our daily computing tasks, it makes sense to pay more attention to their performance. Choosing a smartphone today is more than just a matter of mobile OS preference and aesthetics; it’s largely about performance.
You may not be able to see an iPhone’s processor or the number of cores it has when buying it, but at least you now know how to check the RAM, CPU, and battery of your iPhone for better maintenance of your device.
