The number Hertz (Hz) in the context of a phone screen refers to the screen refresh rate per second. This is the number of frames the screen can display in one second. The impact of the screen refresh rate may be noticeable when moving quickly or scrolling through content.
The higher the refresh rate, the smoother the display of moving objects on the screen can be. Particularly when gaming at high frame rates (such as 60fps and above) or when watching high-resolution videos, a higher refresh rate can create a smoother visual experience.
However, the impact of the refresh rate may be less noticeable during normal phone use, such as browsing the web, reading text, or using apps with static content. In this case, increasing the refresh rate may not have a significant impact on the visual experience.
Which is better - 120 Hz or 144 Hz - depends on the specific characteristics and settings of a particular phone. However, in everyday use the difference between 120Hz and 144Hz may not be noticeable to most users. It's also important to note that a higher refresh rate may consume more power, which may impact battery life.