Xiaomi Redmi K40 Pro vs Redmi K50 Pro are two smartphones introduced by Xiaomi in 2021 and embraced by numerous consumers. Each phone comes with unique standout features and impressive characteristics. To assist users in choosing the right smartphone, we provide the following comparison:
Comparison of Design: Xiaomi Redmi K40 Pro vs Redmi K50 Pro

Upon examining the overall appearance of both smartphones, we can observe distinctive design differences. The K50 Pro features a somewhat square-ish design with subtle curves, while the K40 Pro sports a more curved back design. In terms of length and width, the Redmi K40 Pro outperforms the K50 Pro, being 0.6mm and 0.2mm longer and wider, respectively.
However, in terms of thickness, the K40 Pro measures 7.8mm, which is thinner than the K50 Pro's 8.5mm. Another notable difference lies in the camera setup. The arrangement of cameras differs between the two devices. However, they share a similar front design.

Display Comparison: Xiaomi Redmi K40 Pro vs Redmi K50 Pro
Comparing the displays of both smartphones, they share similarities with a 6.67-inch screen, HDR10+ support, and a 120Hz refresh rate, all protected by Gorilla Glass. However, the Redmi K50 Pro excels with a resolution of 1440 x 3200 pixels, resulting in a pixel density of 526 PPI and Dolby Vision support. On the other hand, the Redmi K40 Pro only offers a resolution of 1080 x 2400 pixels, lacks Dolby Vision technology, and has a pixel density of 395 PPI.
Thus, it's evident that the display of the Redmi K50 Pro surpasses its competitor entirely. However, the Redmi K40 Pro still boasts a notable advantage in screen brightness with a maximum brightness of 1300 nits, higher than the 1200 nits on the K50 Pro.
Performance Comparison: Xiaomi Redmi K40 Pro vs Redmi K50 Pro
In terms of performance, the Redmi K50 Pro is equipped with the high-end and powerful MediaTek Dimensity 9000 chip, while the Redmi K40 Pro is powered by the Snapdragon 888. It's evident that the performance of the K50 Pro is superior. Both smartphones feature UFS 3.1 internal storage with a minimum capacity of 128GB and 12GB of RAM.
Camera Comparison: Xiaomi Redmi K40 Pro vs Redmi K50 Pro
Both Xiaomi Redmi K40 Pro and K50 Pro feature a 20MP front camera allowing for wide-angle photos and 1080p video recording. The difference lies in their rear camera systems.

The K40 Pro boasts a triple rear camera setup with a 64MP main sensor, an 8MP ultra-wide lens, and a 5MP lens for exceptional photo capture. With these impressive specs, users can record videos in up to 8K resolution. However, a drawback is the absence of optical image stabilization (OIS) in the camera system.
On the other hand, the Redmi K50 Pro offers even more impressive specifications with its triple rear camera setup featuring a 108MP wide-angle lens, an 8MP ultra-wide lens, and a 2MP macro camera, supporting 4K video recording. Additionally, it's equipped with optical image stabilization, enabling impressive low-light photography and stable video recording.
Battery Life Comparison: Xiaomi Redmi K40 Pro vs Redmi K50 Pro
Regarding battery capacity, the K50 Pro is rated higher with a 5000mAh battery capacity and supports super-fast 120W charging, taking only about 19 minutes to fully charge. In comparison, the Redmi K40 Pro has a 4520mAh battery capacity and only integrates 33W fast charging.
With the comparisons of Xiaomi Redmi K40 Pro vs Redmi K50 Pro mentioned above, we hope to provide users with useful information. From there, you can choose according to your preferences, needs, and your own economic conditions.
