There is currently no way of adding RAM to an Android phone the same way you would add RAM to a computer – most Android devices are “system on chip”, meaning the CPU / GPU / RAM are on a single chip. You can’t simply replace or upgrade this chip. What we can do however is use an SD card and third-party apps to create swap file space using the SD card’s storage. This is not the same as actually increasing the RAM – rather, it allows us to use a set amount of partition space as virtual memory. The main thing to know is that your performance gains will vary depending on the type of SD card you’re using – this is because SD cards are rated in terms of transfer speed. Your SD card for this task should be at least a class 10, but much better if you’re able to get a UHS-II or UHS-III rated SD card. The fastest available SD cards out there right now are the Sony SF-G UHS-II U3, the Lexar Professional 2000x UHS-II U3, the Toshiba Exceria Pro UHS-II U3, and the SanDisk Extreme PRO UHS-II U3. Allof the methods on this list require a rooted phone – search Appual’s Android root guides for your device if you aren’t already rooted. If you can’t find a root guide for your device on Appual’s, leave a comment with your phone model! As a final note, we do not recommend “task killer” and “RAM booster” apps. They’re largely a placebo effect, and it actually puts more strain on your device (and reduces battery lifetime) when you’re re-opening apps. The RAM cache exists for a very good reason. It’s much better to frequently use a tool like Trimmer (Fstrim) which can restore performance to NAND chips that have grown sluggish over time (mostly due to many read/writes and IO errors). It’s the same principal as the TRIM function on SSDs for computers.
Method 1: ROEHSOFT RAM Expander (Root Required)
Method 2: RAM Manager Pro (Root)
This is a tool similar to ROEHSOFT Ram Expander, but a little bit cheaper – it has a “basic” version, but the RAM features aren’t unlocked, so you need the pro version for what we want to do. In any case, RAM Manager Pro was born out of a successful RAM optimization script from the XDA forums, and it gives you various RAM profiles to work with, which you can easily switch between.
Method 3: Do It Yourself SD Card Partitioning (Root Required)
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