Which Draws More Current On 50 Hz Or 60 Hz

Asus ROG Phone 2 screen refresh rate switch

High-end smartphones increasingly boast blazing-fast 90Hz, 120Hz, and even faster refresh charge per unit displays. This sounds nifty on paper and it's yet another fashion that smartphones try to differentiate themselves from one another. But should y'all buy a phone because of this latest display tech trend? It honestly depends.

The benefits of loftier refresh rate phones and even how they work are non always well understood. While games and content can look a lot smoother, whether it's worth the actress battery consumption depends greatly on the user and the handset. With that in heed, here's everything you demand to know about brandish refresh rates.

Opinion: Here'due south why I recall the refresh rate wars are impaired

What is refresh rate?

Displays aren't static. Content and motion announced smoothen on your telephone's screen because every pixel constantly updates to brandish the latest content from your handset's processor. But this doesn't happen randomly. Panels update their content at regular intervals, known equally the refresh charge per unit.

The refresh rate measures the menstruum of time between a phone's display updates. In other words, how often and quickly the content on the screen refreshes. Measured in Hertz (Hz), the refresh rate counts the number of times the display fully refreshes every second. A 60Hz brandish refreshes 60 times per 2nd, 90Hz is ninety times per second, 120Hz is 120 times per second, and then on. So a 120Hz display refreshes twice as fast as a 60Hz panel and 4x faster than 30Hz.

120Hz refreshed 4x faster than 30Hz and 2x than 60Hz, producing smoother motility and transitions.

Faster update times besides mean lower latency considering the pixels refresh more than often. For instance, it takes 16.6 ms to fully refresh a 60Hz display, 11.1ms for 90Hz, and but 8.3ms for a 120Hz rate. Refresh charge per unit isn't the simply gene in round-trip display latency, but it'south the nearly significant contributor.

Encounter also: 90Hz smartphone display test: Can users actually feel the difference?

Your smartphone's screen doesn't refresh all at once each cycle, though. Instead, each horizontal row of pixels refreshes in turn until the whole display updates at the required rate. You tin can run into this in action if you film a display in slow motion, and information technology's the reason why displays flicker if you view them through your smartphone photographic camera's viewfinder. In other words, your display is constantly updating and refreshing, only information technology takes the bike time to consummate one full refresh.

If you're interested in seeing how frame rates bear upon smoothness and motility blur yourself, cheque out this demo.

A quick note on touch sample charge per unit — a related but different metric. Also measured in Hz, the sample rate tells you how many times per second the touchscreen looks for input from the user'south finger. A higher-touch sample charge per unit means less lag between input (bear upon or swipe) and action, which is especially important for fast-paced games.

What 60Hz, 90Hz, and 120Hz means for my phone

C. Scott Brown / Android Authority

College refresh charge per unit displays brand moving content look and feel smoother and snappier. Even swiping through your emails and interacting with Facebook's UI or your web browser tin can look smoother than the standard 60Hz rate. Although that's not a game-changer for mean solar day-to-day smartphone use, information technology's undoubtedly nicer to look at and there are also more than meaningful benefits to be institute in fast move content, such as video and gaming.

All the same, most video content plays back at the manufacture standard 24 frames per second or 24Hz. Every bit such, display processing needs to either suit the frame rate to the content or upscale the content to the frame rate. 120Hz displays are swell because they can playback content at 60Hz, 30Hz, and 24Hz with fifty-fifty frame divisions. Other refresh rates require processing when scaling 24Hz video. Poor quality processing can induce judder into your videos, which obviously isn't practiced.

Read more: Not all 120Hz smartphone displays are made equal

Faster displays make a big difference when information technology comes to gaming too. Higher frame rates and faster response times can have a noticeable impact because visual latency is lower and gameplay appears smoother. PC gamers regularly swear by 120Hz and even 144Hz displays. At present mobile gamers can benefit too, admitting on a much smaller screen. Yet, high frame rate gaming requires a beefy, energy-hungry processor besides. This ensures that the graphics frame rate keeps up with the high display refresh rate. The game you're playing besides needs to support high refresh rates too. A 120Hz display won't do good from a game capped at xxx frames per second.

120Hz displays look silky shine and feel more responsive at the cost of some battery life.

Unfortunately, loftier refresh rates reduce battery life. During our test on the OnePlus 7 Pro, we noted 200 fewer minutes of browsing time when using the 90Hz manner versus the more standard 60Hz. Nosotros besides recorded a 9% drop in battery life when switching the Galaxy S20 Ultra betwixt 60Hz and 120Hz modes. Still, newer handsets with more efficient displays provide decent bombardment life, thanks to adaptive 90Hz and 120Hz refresh rates. This is helping to lessen the trade-offs associated with early on high refresh rate panels.

120Hz variable refresh rates

OnePlus 8 Pro 120Hz display refresh rate setting

Higher refresh rates take a negative impact on screen on time, but manufacturers have come up up with some clever technologies to limit their touch on on battery life. Variable refresh charge per unit AMOLED panels powered by low-temperature polycrystalline oxide (LTPO) backplane technology is leading this revolution.

See too: Display types explained

Implementations vary, only a combination of LTPO and software changes allows for dynamic refresh rates from 120Hz downwards to 1Hz, although in reality lowering refresh rates to 60, 24, and 10Hz is more common. The idea is simple in principle, reducing the number of display updates when viewing static content, such as images and web pages, improves bombardment life while still benefiting from the smoothness of very high refresh rates when scrolling through content.

Examples of LTPO variable refresh rate phones that can hit 10Hz and lower include the Samsung Galaxy S22 series, Oppo Notice X3 Pro, OnePlus 10 series, and others. Samsung also employs a novel technology in its Milky way S22 and S22 Plus phones. The display refresh rate drops as depression as 48Hz but communication between the processor and display falls as low as 10Hz to save on some more ability.

Should I buy a loftier refresh rate telephone?

90Hz and 120Hz displays are now a mainstay in modern smartphones, not only in the ultra-premium market. These panels are increasingly available in affordable mid-tier handsets likewise.

That said, refresh charge per unit is a pocket-size part of a smartphone's display specifications. You lot shouldn't buy a fast display if the color is awful, after all. Ultimately, aspects like color gamut, contrast, white betoken and color temperature, HDR capabilities, and resolution take an as significant affect on your telephone's screen quality. That said, high refresh rates are at present an essential factor in mod mobile displays and are increasingly hard to ignore when picking up a new phone.

Up next: Brandish specs and terms y'all should know