
In today's world, when purchasing a phone for online learning or for parents, the criteria of a large screen and long-lasting battery are top priorities. Let's take a look at the top 5 smartphones with stable performance and very affordable prices at The Gioi Di Dong.
Some models in today's list are currently on sale in the December promotion. Let's explore together, shall we?
*This list is sorted by increasing prices for your convenience, and prices may change when promotions end.
1. Samsung Galaxy A03s
Kicking off today's list of large-screen phones is the Samsung Galaxy A03s. When it comes to display, this device boasts a large 6.5-inch screen, accompanied by a PLS LCD panel with HD+ resolution.
This allows our parents to comfortably watch movies, read news without straining their eyes. Moreover, online learning becomes more convenient thanks to the large and reasonably sharp display.

The Galaxy A03s is powered by the MediaTek MT6765 octa-core chip paired with 4 GB of RAM, delivering stable performance, ensuring smooth and comfortable basic tasks for users. Additionally, with 64 GB of storage, you'll have plenty of space for essential data.
The Galaxy A03s's 5,000 mAh battery can last for a continuous 9 hours and 21 minutes.The large 5,000 mAh battery ensures uninterrupted online learning sessions. With light everyday tasks, the Galaxy A03s can last even longer, up to 11 - 12 hours continuously.
- 1 month with the Galaxy A03s: Long-lasting battery for all-day online learning and entertainment.
2. Vivo Y15s
The Vivo Y15s is an upgraded version of its sibling, the Vivo Y15, featuring a premium Polymer body with a sleek 3D curved design.

The highlight of the Vivo Y15s is undoubtedly its display. Equipped with a massive 6.51-inch screen and ultra-thin bezels, it offers an impressive viewing experience.

Additionally, the screen brightness adjusts automatically to suit the surrounding environment, coupled with an eye protection mode. This helps protect the eyesight of children during online learning and prevents eye strain for adults when watching movies or reading on this device.

With a price tag under 4 million VND, the Vivo Y15s boasts a decent configuration within its segment, featuring a MediaTek P35 octa-core chip with speeds up to 2.3 GHz, manufactured on a 12 nm process for balanced performance without excessive energy consumption.
- Vivo Y15s battery review: Lasts nearly 9 hours continuously, suitable for prolonged gaming sessions.
The Vivo Y15s is also equipped with a massive 5,000 mAh battery, ensuring a comfortable day of studying as well as prolonged movie marathons without worrying about running out of battery.
3. OPPO A16K

In November 2021, OPPO introduced its new budget-friendly smartphone - the OPPO A16K, featuring a large display, high-capacity battery, and a decent configuration in the under 4 million VND price range.
- Hands-on with the OPPO A16K: Modern design, large display, under 4 million VND.

The first striking feature of the OPPO A16K's screen is its wide viewing angle with a large 6.52-inch display coupled with an IPS LCD panel, HD+ resolution, providing reasonably good color display, smooth motion transitions, and clarity. This is a significant advantage for watching movies as well as online learning.

Inside the OPPO A16K is the MediaTek Helio G35 octa-core chip manufactured on a 12 nm process, paired with 3 GB of RAM and 32 GB of expandable storage up to 1 TB, sufficient to meet basic needs such as web browsing, reading news, making video calls, and online learning.
With a fairly decent 4,230 mAh battery, the OPPO A16K offers continuous usage of up to 7 hours for various tasks, which is quite satisfactory in the under 4 million VND price range.
- Battery review of the OPPO A16K: Continuous gaming and entertainment usage for 7 hours.
4. Realme C21Y 3 GB
The next contender I want to mention is the budget-friendly smartphone from Realme - the Realme C21Y 3 GB. This device features a youthful design, large battery capacity, and an indispensable element - its display.

The Realme C21Y 3GB boasts a large 6.5-inch display, paired with an HD+ IPS LCD panel, ensuring vibrant color display and sharp details. This elevates the movie-watching experience to a new level and supports online learning by closely following the lessons.

- Hands-on with the Realme C21Y: Attractive design, massive 5,000 mAh battery, budget-friendly.
Powering the phone is a 5,000 mAh battery with 10 W charging support, catering well to the needs of prolonged usage throughout the day with various tasks.
5. Xiaomi Redmi 10 (4GB/64GB)
Lastly, the smartphone with the highest price point and the best display is the Xiaomi Redmi 10 (4GB/64GB).
In the under 4 million VND price range, you can own a smartphone with a 6.5-inch display paired with Full HD+ resolution, delivering impeccable display quality.
Redmi 10 comes with Android 11 operating system. Source: GSMArena.Thanks to the use of an IPS LCD panel paired with a DotDisplay punch-hole screen, Redmi 10 offers a spacious display area, enhancing the movie-watching experience with vibrant colors.
Does Xiaomi Redmi 10 deliver smooth gaming performance? Source: GSMArena.This display is also supported by a high refresh rate of 90 Hz, ensuring low latency for every detail, gesture, and touch operation. Additionally, the AdaptiveSync technology automatically adjusts the refresh rate based on the displayed content, contributing to better battery efficiency.

Redmi 10 is equipped with the MediaTek Helio G88 processor, providing stable performance for smooth and fast processing of high-quality video playback tasks. Redmi 10 is also the first device to feature this chip.
Testing the battery life of Xiaomi Redmi 10.Redmi 10 is also a rare find in the budget segment, featuring a 5,000 mAh battery with fast charging support up to 18 W. This is a standout feature of this device in the under 4 million VND price range.
- Redmi 10 Overview: Under 4 million VND, Helio G88 chip, 90 Hz display.
Summary
Above are the TOP 5 smartphones with large screens, stable quality, and affordable prices for you to consider for your parents or suitable for students who need a phone for online learning.
What do you think about the models on this list? Leave your comments below!

Don't forget, The Gioi Di Dong is having a big sale event called 'CELEBRATING THE END OF DISTANCE - SAVE TWICE THE MONEY' with many attractive offers. You can find all the details of the program in the orange button below!
CELEBRATING THE END OF DISTANCE - SAVE TWICE THE MONEY
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