How the Refresh Rate Affects the Battery of Mobile Phones

The current trend of mobiles is to increase the refresh rate up to even 120 Hz, this offers us important improvements in the screen of our mobile although it affects the battery. The sensation of speed increases and when sliding and navigating with a mobile phone with this configuration, when changing to another mobile phone without this technology, it gives us the sensation of noticing even lag.

The improvements are notable and cannot be denied, although the battery of these phones also suffers. For this reason, some brands such as Samsung limit access to this option for applications such as the camera where we do not need it or when the battery is at minimum, with the intention of increasing autonomy. A study has been carried out where it has been wanted to check how the refresh rate at 120 Hz affects the battery , leaving us with a series of illuminating data.

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Autonomy tests with refresh rate at 120 Hz and 60 Hz

Although it was foreseeable, until there were no data like the ones we are going to show you in real evidence, everything was assumptions. These tests have been carried out with the Samsung Galaxy Ultra and the Samsung Galaxy S20, although they can be extrapolated to other models such as the Razer Phone and we can add the OnePlus 7T Pro or the realme X2 Pro despite having the latter with 90 Hz. The tests that have been carried out have not focused solely on an application, but have tried to imitate the use that a normal user would make throughout the day.

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In the first of these, the Samsung Galaxy S20 Ultra has a 5,000 mAh battery and the Samsung Galaxy S20 4,000 mAh . Allowing us to check the results at both 120 Hz and 60 Hz with an important difference that will make us think about it before using this configuration on all the mobiles that have it available.

Results with a difference of up to 22%

We begin by knowing the results of the oldest, the Galaxy S20 Ultra, which using its 60 Hz screen has resisted for 12 hours and 8 minutes continuously. Later when the 120 Hz refresh rate was activated, we can see how the battery drops by 16%, staying in 10 hours and 15 minutes .

As for the Samsung Galaxy S20, with the refresh rate limited to 60 Hz, we observe a duration of 10 hours and 27 minutes , which when passing to 120 Hz is further limited, reaching 8 hours and 9 minutes , which it means 22% less autonomy. In the table itself you can see the results:

pantallas 120 Hz batería

Manufacturers are aware of this and that is why among their settings they allow us to choose when we want to enjoy all the functions and the best result on the screen or when we prefer to limit it. In several cases it will be better to reduce it, although if we have a plug within our reach, we can take advantage of all its possibilities.

Other data that affects the battery of our mobile

In addition to the refresh rate on the screen, there are other aspects that directly affect our mobile phone, which we must take into account when choosing one or the other. The size of the screens is one of the most important, because the larger the size, the more energy our mobile phone will need to turn it on and show us all the content we see on it.

AMOLED or IPS technology. Which consumes less?

The screens of your mobile phones can be based on two very different technologies from which we will have to choose. On the one hand we have the classic IPS, which illuminate the entire front of our phone without differentiating between blacks or colors and this ends up affecting the battery of our phone.

Xiaomi mi 10 pantalla

On the other hand, AMOLED technology does not illuminate the entire screen uniformly, they are based on pixels, making each one take a value without affecting the rest. With this technology, the colors are also more vivid and in addition, we obtain a lower battery consumption by not having to turn on the screen completely when we take advantage of the dark mode of our mobile.

Screen resolution, another risk factor

As screens grow and technology advances, the resolution of mobile screens increases, reaching us even with 2K resolutions. This however is another aspect that can cause the battery of our mobile phone to be affected , significantly reducing autonomy.

Conclusions and usage decisions

How we have been able to check, both the update frequency, the resolution or the technology of the screens on our mobiles significantly affect our smartphone, reaching the difference between arriving at the end of the day or needing a charger. Without a doubt, these technologies are necessary for us to enjoy the best benefits, but we also have to be consistent with it and set limits. Each one must decide what days or moments are ideal to see our screen in 2K and when we prefer to reduce it to FullHD, the same as we saw with the refresh rate.

Source>01net