Refresh rate: what 120 Hz actually changes

Refresh rate is how many times per second a display can redraw. 60 Hz was the standard for years; 120 Hz is now normal on flagships and common well down the price range. It is one of the few specifications where the improvement is immediately visible, and also one where the number on the sheet is not necessarily what you are getting.

What you actually notice

Scrolling. Text stays legible while moving instead of blurring into a smear, and the whole interface feels more directly connected to your finger. It is the kind of improvement that is obvious in a side-by-side comparison, unremarkable within a day of owning it, and irritating when you go back.

Animations look smoother, and games that support high frame rates feel more responsive. Static content — reading, photos, video — looks identical. Most video is 24 or 30 frames per second and gains nothing from a 120 Hz panel.

The battery cost, and what LTPO does about it

Redrawing twice as often costs power. On a fixed-rate 120 Hz panel that is a real penalty, which is why cheaper high-refresh phones often let you choose between smooth and long-lasting.

LTPO is the technology that removes the choice. An LTPO panel varies its refresh rate dynamically — running at 120 Hz while you scroll, dropping to 10 Hz or 1 Hz on a static screen. Every flagship in our catalog uses it, and it is why a 120 Hz phone can still last a day. When our specification sheet says 'LTPO AMOLED, 120 Hz', the 120 is a ceiling, not a constant.

A non-LTPO 120 Hz panel typically switches between a small number of fixed rates instead. It works, less elegantly, with a larger battery cost.

The resolution default nobody mentions

Here is a specification-sheet trap worth knowing. Several manufacturers ship QHD+ phones set to FHD+ out of the box, because running full resolution at high refresh costs meaningful battery. Samsung has done this on Ultra models for several generations.

So the resolution row on our table — 1440 x 3120 on the Galaxy S25 Ultra, for example — is the panel's maximum, not necessarily the mode you are running. It is a settings toggle, and switching to full resolution does cost battery. Worth checking on a phone you already own; you may have paid for pixels you are not using.

Diminishing returns above 120 Hz

Some phones advertise 144 Hz or higher. The jump from 60 to 120 is obvious. The jump from 120 to 144 is difficult to see outside of specific games, and higher rates cost more power for less benefit.

Treat anything above 120 Hz as a specification-sheet number rather than a feature you will notice, unless you are a competitive gamer who already knows why they want it.

Touch sampling is a different number

Touch sampling rate — how often the screen checks for your finger — is sometimes advertised alongside refresh rate and is a different measurement. It affects how immediately the phone responds to input, and gaming-focused phones often push it far above their refresh rate. We do not currently list it as a separate row.

What matters more than refresh rate

Peak brightness determines whether you can read the screen in sunlight, and it varies enormously between phones at the same price. It is arguably the display specification that affects daily use most, and it is one we do not yet list for every model.

Panel type matters too. AMOLED and OLED give true blacks and high contrast; LCD does not. Every phone in our current catalog uses an OLED variant, so it does not differentiate them, but it does at lower price points.

PWM dimming is worth knowing about if you are sensitive to it. OLED panels dim by flickering very rapidly, and a minority of people get headaches or eye strain from it, particularly at low brightness. Manufacturers publish PWM frequencies inconsistently. If you have had this problem before, it is worth researching a specific model before buying — and it will not appear on any standard specification sheet, including ours.

Refresh rate and battery, in practice

If you own a phone with an adjustable refresh rate and your battery life disappoints, dropping from 120 Hz to 60 Hz is one of the few settings changes that produces a measurable improvement. On a non-LTPO panel the difference can be substantial. On an LTPO panel it is smaller, because the phone is already dropping the rate whenever it can.

Whether you can live with the result is personal. Going back to 60 Hz after months at 120 is more noticeable than arriving at 120 was, which tells you something about how quickly the improvement becomes invisible.

What to take from the display row

When our sheet says 'LTPO AMOLED, 120 Hz', the useful information is the panel type and the word LTPO, not the number. LTPO tells you the phone can run high refresh without paying for it all day. AMOLED tells you contrast will be good.

The resolution figure is a ceiling you may not be using. The refresh figure is a ceiling the phone deliberately does not hold. Neither is a lie, and neither is quite what it appears to be at a glance — which is true of a surprising amount of a specification sheet, and is the reason we write an overview next to every table we publish.