What is refresh rate (Hz)?

Refresh rate is the number of times the screen updates the picture every second, measured in hertz (Hz). A 60 Hz screen refreshes 60 times per second, while a 120 Hz screen refreshes 120 times. The higher the number, the smoother and clearer motion looks on the screen.

In daily use, the difference shows up when scrolling through apps and websites, playing fast games, and watching videos. A higher refresh rate makes motion feel smoother and reduces the sense of stutter or blur, and it can also ease eye strain during long sessions. The difference is less noticeable for static tasks like reading text.

When buying, 60 Hz is the basic level that suits everyday use, while 90 Hz or 120 Hz gives a smoother experience, especially for gaming and scrolling. Some screens go higher, such as 144 Hz or 165 Hz, which mainly benefits gamers. It is also worth checking that the phone actually runs at the higher rate, since some devices lower it automatically to save battery.