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Android uses 18G memory, is there only 6g next door?

Yh 2021-11-30 14:00:04

Yesterday,ZTE AXON 30 UltraThe aerospace version is officially released. Contrast the previous normal version, the biggest change in aerospace is this will be the first "18GB + 1TB" and Android model. This also indicates that the RAM of the future mainstream Android flagship machine may be upgraded from 8 / 12GB to 18GB or even higher.

苹果为什么能小内存高流畅?安卓却需要增加RAM? But IOS that is opposite the next door, the latestiPhone 13 PRO series is only 6GB of memory, and the normal version is only 4GB. Why is Android now?cell phoneRAM is getting bigger and bigger? Retreat from 8GB to 12GB to 18GB, andiPhoneBut only half of Android is even less. Is this apple behind or the Cook "Tang Dynasty"? In fact, the real reason is not just the cost savings.

01 Small science: What is RAM and ROM?

Before comparing the differences between the two system memory management mechanisms of iOS and Android, we need to understand the meaning behind some professional nations. RAM is also called running memory, and the size of the RAM directly determines how many programs you can open in the backlights; the ROM is called the body storage, the size of the ROM determines how many programs you can install, how many photos, songs are stored.


If you use your phone, turn on multiple apps. When your phone is not shipped enough, your phone will automatically turn off partial App release space to meet the needs of the new APP, commonly known as "kill background." When your mobile phone habitual "kills" will affect the performance of the phone and the battery, and the time spent on the APP will make you feel "not flowing". so,In the same time, when the open mobile app is as much as possible, the larger the storage, the smoother the phone.

02 Compared to Android, IOS tombstones can save more memory

In daily use, the type and quantity of our running procedures are similar, why Android needs more than Apple to guarantee fluency?

Because Android uses the "real latter" --App runs in the front desk and the storage occupied in the background is almost almost, which makes it more memory. And Apple's background is a virtual background, and the app is put in the background is hanging and will not work. When a task is forced to interrupt, the system will record the status of the current application, and then the program is frozen, just like the event record on the tombstone. When you need to recover, the program is restored to the state before the interrupt is restored according to the content on the tombstone.


Therefore, iOS's tombstone mechanism makes it in the background, saving more memory than Android. Therefore, in this case, the memory required by IOS is far less than Android in this case, and Android needs more memory space to ensure smooth use of mobile phones.

03 Apple's strict review and sandbox mechanism make it compared with the requirements of Android

In addition to the tombstone mechanism of iOS, Apple's strict review and sandbox mechanism also make it do not need such a large storage space.

Because there is no strict audit system, the Android system is extremely open, the market is mixed, causing a variety of messy APP layers. These APPs have a series of "rogue acts": a variety of chaos, chaos access rights, the key will wake up with the party, casually open an app, thousands of APPs in the background, and the storage instant is squeezed.


Apple is different, all APPs in the App Store need Apple's official review, and they receive permissions need to be approved by users. After you take the initiative to exit, the system will completely kill the app and all processes, and will not be opened in the background. Plus iOS uses a sandbox mechanism, each app is placed in a separate sandbox, unable to interfere with each other, naturally there is no possibility of actively awakening other apps. Therefore, in strict control, iOSsoftwareRequirements for shipping are naturally than Android.

04 Compared to Android, Apple has a unified push service to reduce the storage space

Apple's push notification service also reduces the storage usage space to a certain extent.iOS systemThe notification message is pushed to you via Apple servers, so you can receive notification messages without opening the app, which is invisible to reduce the storage usage.


Due to many mobile phone manufacturers using Android systems in China, plus the open source of Android systems, resulting in the current unified push alliance. If you need to push the service, your message can only be pushed by the app or a third-party service platform. For example, you haveWeChat, Taobao, staples and other software, their respective push invisible increases the increase in storage usage.

05 Summary

In summary, because Apple's tombstone mechanism plus the official strict review, sandbox mechanism and uniform mandatory service, Apple does not need special storage space to satisfy its fluency; and Android because of the "true background ", Open source, etc., more memory is required to ensure the user's experience.

Therefore, it is not Apple behind Android, nor the Cook "Tang Dynasty", but there are some differences in the management of two major systems. The more memory is, the more better, but because the iOS and Android shipping management mechanisms are different, there is no way to compare it.

Finally, the author recommends 2 "big memory, high-performance" and 2 "big memory, high-performance" Android flagship machine, you can purchase it on demand.