The question of how many hertz on the Xiaomi Redmi Note 9S is one of the most talked-about issues in the smartphone community. When the device was released in 2020, the standard indicator for the mid-market segment was the 60 Hz refresh rate, and this is the parameter officially stated by the manufacturer. However, users often look for ways to circumvent software limitations, believing that the physical matrix is capable of more, and try to activate 90 Hz or even 120 Hz modes through hidden menus of engineering settings.
The technical reality is that Xiaomi Redmi Note 9S well-equipped IPS-The display is 6.67 inches diagonal, but its hardware hertz is rigidly limited to 60 Hz. Attempts to programmatically “overclock” the screen often lead to image artifacts or unstable interface operation, since the display controller is not designed to work at higher frequencies. In this article, we will analyze the real characteristics of the matrix, compare with competitors and explain why chasing numbers in this particular case does not make practical sense.
Official Characteristics of the Redmi Note 9S Display
The official specification of the device leaves no room for ambiguity: the screen refresh rate is 60 Hz. This means that the image on the display is updated 60 times per second, which is the standard for most video content and interfaces of the period. IPS provides excellent viewing angles and color reproduction, but does not boast of an instant response characteristic of the AMOLED-high-hertz panels.
The screen resolution is 2400 × 1080 pixels, which gives a density of about 395 ppi. Peak brightness reaches 450 nits and contrast is 1500:1. It is important to understand that even if the option of choosing 90 Hz appears in the engineering menu, the physical structure of the pixels and their response time will remain the same, which can lead to plumes during fast movements.
💡
When choosing wallpaper for 60 Hz screen, avoid static images with fine details – on IPS matrices they can burn out or create a “dirty screen” effect at low brightness.
Many users confuse the touch sampling rate with the refresh rate of the screen. In the Redmi Note 9S, the frequency of the touch layer survey may be higher, which creates the illusion of smoothness when scrolling through tapes, but this does not change the number of frames displayed by the matrix itself.
The Myth of 90 Hz and the Possibilities of Overclocking
There are many instructions on how to activate the Internet. 90 Hz on Xiaomi Redmi Note 9S It's all about changing the system settings, using applications like SetEdit or engineering menus. peak_refresh_rate Or similar variables in the Android settings database, but in practice, this leads to the following results:
- 📉 The interface may become smoother on the menu, but the physical matrix does not have time to draw new frames.
- 🔋 The processor’s energy consumption increases dramatically as it starts rendering more frames in vain.
- ⚠️ Artifacts arise: image tears, flickering or full black screen.
⚠️ Note: Changes to system parameters through ADB SetEdit can lead to a cyclic reboot of the smartphone (bootloop).Be sure to make a full backup of data before experimenting!
From a technical point of view, the display controller in this model does not physically support the operating mode above 60 Hz. Even if the operating system sends a signal at a frequency of 90 Hz, the matrix will simply ignore the extra frames or duplicate the previous ones, which will not give a visual smoothness effect, but only load the Adreno 618 graphics accelerator.
Why Xiaomi won’t unlock 90Hz?
Comparison with competitors and other Xiaomi models
To understand the Redmi Note 9S’s place in the market, it’s worth comparing its screens to other popular models from the same period, and the difference in hertzock is only noticeable when you compare it side by side, especially when you scroll through fast social media feeds or in games.
Below is a table showing the difference in display performance between the model in question and its closest competitors or successors:
| Smartphone model | Type of matrix | Update frequency (Hz) | Peak brightness |
|---|---|---|---|
| Xiaomi Redmi Note 9S | IPS LCD | 60 Hz | 450 nits |
| Xiaomi Redmi Note 10 | AMOLED | 60 Hz (90 Hz in firmware) | 450 nits |
| Realme 6 | IPS LCD | 90 Hz | 480 nits |
| Samsung Galaxy A51 | Super AMOLED | 60 Hz | 420 nits |
As you can see from the comparison, a direct competitor in the face of Realme 6 offered an honest 90 Hz back in 2020, which gave it an advantage in the smoothness of the interface. IPS-matrix in Redmi Note 9S It benefits in natural color reproduction and lack of flickering (PWM), which is important for people with sensitive eyes.
The effect of hertzovka on autonomy and heating
One of the reasons Xiaomi has set a 60Hz limiter on the Redmi Note 9S is the balance between performance and power consumption.The 5020mAh battery should keep the device running all day long.The increased screen refresh rate directly affects the CPU and graphics chip load.
When you're running in 60Hz, you're using less resources to render animations, and if there was a stable way to get the hertz up, you'd have the following consequences:
- 🔥 Increased heat generation of the Snapdragon processor 720G loaded.
- 🔋 Reducing the time of autonomous work by 15-20% active-use.
- 🐌 Possible trottling braking of the system when heating the body.
The MIUI optimization for this model is sharpened to 60 frames per second. The transition animations, the application list, and the widgets are designed for this time interval. Artificial acceleration can lead to dissynchronization of processes and reduce overall system responsiveness.
💡
For the Redmi Note 9S, the 60 Hz mode is the “golden mean” that provides maximum battery life and a stable temperature regime.
Customization of visual perception without acceleration
Even without increasing the hertz, you can make using the Xiaomi Redmi Note 9S more comfortable. There are parameters in the system settings that affect the smoothness of the interface perception. Go to Settings → Advanced Settings → Special features → Visual.
You can turn off animations or reduce their duration, which creates the illusion of a faster response system, and it is also recommended to use a dark theme, which on IPS-matrixes with LED-lighting does not save charge as effectively as on AMOLED, but reduces the load on the eyes.
Another important parameter is the frequency of the sensor survey, and in Game Turbo, you can increase the sensitivity of touches, and it won't change the hertz of the screen, but it will make the control in shooters more accurate and responsive, which is critical for competitive games.