Comparison of Redmi K40 Pro Plus with Samsung Galaxy S21

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In this article, by comparing Redmi K40 Pro + with Samsung Galaxy S21 – Redmi K40 Pro + vs Samsung Galaxy S21, we will help you choose an economical flagship phone.

Xiaomi has another trump card for the flagship market called the Redmi K40 Pro Plus. This phone has excellent technical specifications and features along with an affordable price, and this has led many to believe that it can compete with the regular version of the Galaxy S21 in the market. For this reason, in this article, we decided to compare the Redmi K40 Pro Plus with the Samsung Galaxy S21 and put these two attractive phones face to face.

Comparison of Redmi K40 Pro Plus with Galaxy S21

Technical specifications table

Smartphone Redmi K40 Pro + Samsung Galaxy S21
Weight and dimensions 163.7 by 76.4 by 7.8 mm, 196 g 151.7 by 71.2 by 7.9 mm, 169 g
Display 6.67 inches 1080 x 2400 pixels, Super AMOLED 6.2-inch 1080 x 2400 pixels, Dynamic 2X output
Processor Qualcomm Snapdragon 888
8 core 2.84 GHz
Samsung Exynos 2100
8 core 2.9 GHz
Memory 12 GB of RAM, 256 GB of memory 8 GB of RAM, 128 or 256 GB of memory
software Android 11, MIUI Android 11, One UI
connections WiFi 802.11a / b / g / n / ac / ax, Bluetooth 5.2, GPS WiFi 802.11a / b / g / n / ac / ax, Bluetooth 5, GPS
Camera Triple 108 + 8 + 5 megapixel
selfie 20 megapixels
Triple 12 + ۴64 + 12 megapixels
10 megapixel selfie
Battery 4520 mAh, fast charge 33 watts 4000 mAh, 25 watt
fast charge 15 watt wireless fast charge
Additional features Dual SIM slot, 5G network Dual SIM slot, 5G network, reverse wireless charging, IP68 waterproof certificate


The design of the Galaxy S21 looks a bit more modern than the Xiaomi representative. The design of the rear camera module of the Samsung phone is simpler, and the integration of this module with the frame around the phone prevents the back cover from being overcrowded. On the other hand, the Redmi K40 Pro Plus, unlike its competitor, which is equipped with a plastic back cover, uses a much better quality glass frame.

Despite the use of a plastic back cover, the frame around the Galaxy S21 is made of aluminum and the protective layer of Gorilla Glass Victos is present on its front display. The phone has even achieved IP68 waterproof certification, while the Xiaomi representative only offers IP53 certification for minimal water resistance. Also, if you need a more compact and lighter phone, the Galaxy S21 will be a better option for you.

Comparison of Redmi K40 Pro Plus with Samsung Galaxy S21

Samsung Galaxy S21


The image quality on the screens of both phones is quite close to each other. Both use an AMOLED panel with deep black, a 120Hz refresh rate, 10x HDR + support, and a maximum brightness of 1,300 nits. Although a high-end panel is intended for these two corners, it is not the best panel on the market. Their screen resolution is equal to Full HD Plus, which still offers good quality, but does not match the screen quality used on the Galaxy S21 Ultra.

The biggest difference between the display panels of these two phones is their dimensions. You’ll have a 6.67-inch display on the Redmi K40 Pro +, while the Galaxy S20 measures 6.2 inches. And although both phones are equipped with a fingerprint sensor under their display, the Samsung phone’s ultrasonic sensor performs much faster and more accurate in unlocking the screen than the Xiaomi phone’s optical sensor.

Hardware and software

The international version of the Galaxy S21 is powered by Samsung’s own Exynos 2100 chipset, while Xiaomi’s hub is Qualcomm’s latest flagship chipset, the Snapdragon 888. The performance of these two chips is somewhat close to each other, but Xiaomi phone with 12 GB of RAM has performed better than the competitor in terms of memory.

Both phones arrive with Android 11. Meanwhile, Samsung has committed that Galaxy S21 customers can receive important Android updates for up to 3 years and security patches for up to 4 years.

Comparison of Redmi K40 Pro Plus with Samsung Galaxy S21

Xiaomi Redmi K40 Pro +


The undisputed winner of the Redmi K40 Pro Plus comparison with Samsung’s Galaxy S21 in the camera category is undoubtedly the representative of South Korea. Unlike the Xiaomi phone, this phone uses optical image stabilization for its main camera and is equipped with a telephoto lens with optical zoom.

The Galaxy S21 camera system is equipped with a 12-megapixel main sensor, a 64-megapixel telephoto sensor and a 12-megapixel ultra-wide sensor. The selfie camera is similar to the Xiaomi 10-megapixel phone, but offers more resolution and can shoot 4K video at 60 frames.

Both phones can record 8K videos with their rear cameras. Also, while the Xiaomi phone uses a 108-megapixel main camera, this does not necessarily mean that it offers a better camera than the Galaxy S21.


Battery life is another area that compares to the Xiaomi representative Redmi K40 Pro Plus with the Galaxy S21 thanks to the larger 4520 mAh battery. But you should not forget that between the two, only Samsung phone supports wireless charging and reverse charging technologies. Also, although the battery of the Redmi phone is charged with a higher power of 33 watts, because it has more capacity, the duration of both phones from 0 to 100% charge is the same.


But perhaps the most important part of this comparison, which can be very influential in the choice of customers, is the price of these two phones. The Xiaomi Redmi K40 Pro + is priced at $ 560 in the Chinese market. You have to pay $ 960 to buy the base version of the Samsung Galaxy S21. So in the selection, the $ 400 price difference between the two phones is quite significant.

If you are looking for a phone with a more modern look, better cameras and a completely waterproof body, we recommend buying the Galaxy S21. But if you need a bigger screen and battery and at the same time you want to pay less to buy a flagship phone, you can choose the Redmi K40 Pro Plus.

See Also The Samsung Galaxy A71 received Android 11 and One UI 3.1‌ directly

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