Android Phone & LDquo; Throughout evolution &; In the age of 18GB, is it useful?
After 14 years, Apple tops out at 6GB of operating storage. Is Android going sideways? Listen to the author carefully.
01 What are RAM, ROM, UFS, LPDDR?
Before comparing the memory management mechanisms of iOS and Android, we need to understand some of the terminology behind them.
The amount of RAM, also known as running memory, determines how many applications you can run in the background. ROM is called body storage, and the size of ROM determines how many programs, photos and songs you can put in your phone.
UFS, full name is universal flash storage, and the latest is UFS 3.1, using hS-G4 specification, single channel bandwidth up to 11.6Gbps, performance is twice as UFS 2.1; It has the advantages of faster transmission speed, faster software response, smoother program running, lower power consumption, better power saving effect and so on.
LPDDR full name is Low Power Double Data Rate, abbreviated &LDquo; Low power memory & RDQUO; JEDEC solid State Technology Association of the United States for low power memory communication standard, known for low power and small size, specifically for mobile electronic products.
LPDDR5 is the latest standard. According to Lei, compared with LPDDR4X, LPDDR5 can improve the battery life of comprehensive scenes by about 10 percent, save about 20 percent on power for playing games, and save about 10 percent on power for wechat voice and video.
As we all know, the power consumption of 5G phones is higher than that of 4G phones, and 2K resolution, high refresh rate, high pixel image sensor and so on further increase the power consumption of the phone. If LPDDR5 can help save battery life, that's a good thing.
These metrics aren't as obvious to consumers as a 100 megapixel or 120Hz refresh rate, but when you start a game or load an app, it's a lot faster than before. The phone's battery also didn't drain as quickly when users were playing games.
In short, if you want to ensure fluency, the standard for the phone is LPDDR5+UFS 3.1, and again only LPDDR4X+UFS 3.0. If you see a phone below this standard, I advise you not to buy it.
02 Tombstone allows iOS to save more storage than Android
In everyday use, we all run the same variety and number of apps, so why does Android need a bigger store than Apple to be smooth?
Because Android is using “ True throughout the background &; — — Running an APP in the foreground takes about the same amount of memory as hanging it in the background, which makes it more memory intensive.
But Apple's background is a virtual background, APP in the background is suspended, will not work. When a previous task is forced to interrupt, the system records the status of the current application, which is then frozen, like events on a tombstone. When recovery is needed, the program is restored to the state before the interruption based on the contents of the tombstone.
As a result, iOS's tombstone mechanism allows apps to save more memory in the background than Android. So iOS requires a lot less memory than Android, which requires a lot more memory to keep the phone running smoothly, while maintaining roughly the same number of apps in the background.
03 Strict censorship and sandbox mechanisms allow Apple to have fewer shipping requirements than Android
In addition to the tombstone mechanics of iOS, Apple's strict censorship and sandbox mechanics mean it doesn't need that much storage space.
Due to the lack of strict audit system, The Android system has a strong openness and uneven market, resulting in a variety of chaotic apps emerge in an endless stream. In the early years of the retractable front-facing camera design, there were many products that made the camera pop up when you were using it, which was to randomly access your personal information.
On the other hand, all apps in the App Store need to be officially approved by Apple, and they need to be approved by users.
After you voluntarily exit, the system will completely kill the APP and all processes, not to mention quietly open in the background. In addition, iOS uses the sandbox mechanism, so each APP is placed in an independent sandbox and cannot interfere with each other's access. Naturally, there is no possibility to actively wake up other apps.
Therefore, under strict control, iOS software has far less requirements for operating storage than Android.
04 Ordinary people don't need 18GB of storage for apple users or even 4GB
After saying the difference between Apple and Android system, then in order to let everyone feel the difference between Apple and Android system more intuitively, the author conducted the actual measurement:
We can see that for iOS, 6GB is equivalent to android's 12GB, so Apple really doesn't need to use more storage.
For the average user, apple's 4GB and Android's 8GB are enough for daily use. Of course, if you are a user who pays attention to game experience or photo experience, then I recommend you to choose Apple 6GB/ Android 12GB. The background use of nearly 30 common apps can fully meet the needs of large-scale games/photography. As for the next 18GB, I really can't think of any application scenarios that need such a large storage space, so please be rational when choosing.