Have you ever encountered your phone freezing and apps getting stuck? The cause might be RAM overflow. Hence, recently, manufacturers have provided RAM expansion technology on their devices to address this issue. So, what is RAM expansion technology? Let's explore this technology with 24h Tech and discover the top 5 phones with expandable RAM in this article.
What Is RAM Expansion Technology?
RAM - Random Access Memory - is the temporary memory of a device used to store current data for the CPU to access and process. When you open an app, it's called a process, and these processes (when multiple apps are open) are stored in physical RAM (actual RAM) in the background.

In simple terms, RAM expansion technology will utilize the phone's internal memory to act as temporary RAM. For instance, if a phone has 6 GB of RAM and 128 GB of internal memory, when you expand the RAM by an additional 5 GB, technically, you'll have 11 GB of RAM, leaving approximately 123 GB of internal memory.
How RAM Expansion Technology Works
Now, let's explore how RAM expansion technology operates in real life, whether it's effective or just a gimmick.
Virtual RAM handles all background apps that are not actively running, and it will keep those apps in the internal memory (virtual RAM) for a longer period. The Android system categorizes which apps need to be stored in virtual memory and which should not.

Typically, virtual RAM operates at a slower speed compared to physical RAM, so it may not handle heavy apps like games well. However, virtual RAM is truly beneficial because it can handle lighter tasks, making room for heavier tasks to be processed in physical RAM. This brings numerous benefits to users.
Benefits of RAM Expansion Technology
A significant advantage of expanded RAM that many users appreciate is its more reasonable pricing.
Typically, if you buy a phone with a large RAM capacity, you'll have to pay a fairly high price. Instead, RAM expansion technology will help you own a large RAM capacity while ensuring affordability.

Moreover, with a larger RAM capacity, you'll save time by avoiding app relaunches, ensuring smooth phone performance without sluggishness over extended periods of use. The issue of phone temperature is also effectively addressed thanks to this virtual RAM capacity.
- What is virtual RAM? How does virtual RAM on phones differ from virtual RAM on computers?
Top Smartphones with Expandable RAM Worth Buying at Mytour
If you're looking to experience this technology, you can check out some budget-friendly smartphone models equipped with RAM expansion technology at Mytour in the next part of the article.
*The list is arranged from low to high price for your convenience.
1. Vivo Y21s 6 GB
Starting off the list is a name from Vivo - a pioneering brand in phone RAM expansion technology - the Vivo Y21s 6 GB.
With a RAM capacity of 6 GB and the ability to expand by an additional 2 GB of virtual RAM, you can comfortably use the device for years while ensuring smooth performance like day one.
Furthermore, the device features a youthful design, a 5,000 mAh battery capacity providing all-day usage, and 18 W fast charging technology that significantly reduces charging time.
- Is it worth buying the Vivo Y21s? What highlights do Vivo's phones under 6 million VND have?
2. OPPO A95 4G
OPPO A95 4G is a newcomer from OPPO, recently launched in November. The device comes with 8 GB of RAM and can expand up to 5 GB of virtual RAM, enhancing multitasking capabilities and improving data reading performance while reducing frame loss to ensure you always have the best user experience.
OPPO also equips the A95 with a 5,000 mAh battery accompanied by exclusive VOOC 33 W fast charging, making charging your beloved device faster than ever.
- Reasons to buy the OPPO A95 now, beautiful design along with many new technologies.
3. Vivo V23e
With OPPO's newcomer, we can't forget Vivo's newcomer - the Vivo V23e. This phone model has just been launched in November, and it's a strong contender on the list as it comes with 8 GB of RAM along with 4 GB of virtual RAM thanks to RAM Expansion 2.0 technology.
Vivo V23e also receives significant investment in selfie capability and slim lightweight design. Along with the current trend of square design, the V23e also offers excellent performance and a 4,050 mAh battery, with ultra-fast 44 W charging capability.
- Performance review of Vivo V23e: Smooth Helio G96, 10 hours of playing Arena of Valor.
4. Vivo V21 5G
Next up is another representative from Vivo - the Vivo V21 5G - with up to 11 GB of RAM (8 GB of actual RAM and 3 GB of expandable RAM). This premium-grade smartphone won't disappoint you in terms of user experience.
Capturing stunning selfies at night, modern design, along with top-notch 5G network connectivity speed, all these impressive features are packed into the Vivo V21 5G.
- Vivo V21 5G: The must-buy masterpiece of 2021 from Vivo, handling every game effortlessly.
5. OPPO Reno6 Z 5G
Wrapping up the list is the OPPO Reno6 Z 5G, if you're a true 'Sky' enthusiast, then you can't overlook this masterpiece, can you?
In the upper mid-range segment, the phone is equipped with 8 GB of RAM and of course boasts top-notch RAM expansion technology, capable of expanding up to 5 GB of virtual RAM, helping you handle multitasking smoother, reducing stuttering or freezing.
Furthermore, the Reno6 Z 5G features a host of upgrades and improvements not only in external appearance but also in internal power. Particularly, the phone is evaluated by the company as a 'portrait expert capturing all the most authentic emotions'.
- OPPO Reno6 Z 5G Review: Smooth gaming, long-lasting battery, premium camera.
Conclusion
So, we've explored some information about RAM expansion technology and the TOP 5 phones capable of expanding RAM in this article.
Hope you will choose a device with suitable RAM expansion technology for yourself or as a year-end gift for your loved ones.
Planning to buy a phone with expandable RAM? Drop a comment below and let me know!

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