The Samsung Galaxy S26 They’re here, and to no one’s surprise, they’re extremely similar to last year’s. The time of having new mobile phones that are clearly better than those of the previous generation has long passed and we have seen that most of the new features come from the software side. Even so, in this family we see improvements in one of its models: in the S26 Ultra.
Improvements in cameras, in power with the Next generation Snapdragon and one privacy screen which still seems like a magic trick to me. It also has a battery from the past: 5,000 mAh when China is betting on figures of 6,000 or 7,000 mAh. And there is a very simple explanation that has nothing to do with Samsung’s conservatism: you can’t have everything.
And if the Galaxy S26 Ultra wants to maintain its hallmark, which makes it different in a calendar full of mobile phones that are very similar to each other, it must make sacrifices. I’m talking about the S-Pen.
The sacrifice of the Galaxy S26 Ultra that… makes sense
We are not going to fool ourselves: Samsung, Google and Apple are three companies that are being too conservative both with battery capacity and loads. They put in just enough so that this charge can be considered ‘fast’ while in China we see phones with new generation batteries that also have much faster charges.
You may think that they do not bet on ultra-large batteries with crazy charges for a degradation issuebut it is really the Chinese companies that offer long-term tests on the charging cycles of their batteries. And an 80% degradation in a 7,000 mAh battery is not the same as in a 5,000 mAh battery.
The problem is that, although the 4,900 mAh of the Samsung Galaxy S26+ They are unjustifiable from the user’s point of view, the 5,000 mAh of the Galaxy S26 Ultra is more understandable if we look at the insides of the mobile. As an example, I am going to put an image of the interior of the S25 Ultra of the video by JerryRigEverything:

Interior of the S25 Ultra. Look how little space the battery has | Screenshot of JerryRigEverything
Here we have several interesting things. On the one hand, the enormous space occupied by the SIM tray. Well, really, what it takes up… everything. More than a third of the rear is the plate with the SoC and the cameras, the bottom part is dominated by the speaker, the SIM slot and the USB-C port.
and then we have an element that takes up a lot of space: the S-Pen.

The SIM slot takes up a lot | Screenshot of JerryRigEverything
The pen is stored inside the cell phone and takes up a good portion of it. It’s very easy to see the amount of space you’re stealing from a battery that’s already being suffocated by the rest of the components. And we cannot say that the S25 Ultra is small, precisely.

Without the pencil in its compartment, we can better see what the battery is losing | Screenshot of JerryRigEverything
When Apple removed headphone jack port He did it for several reasons. One was to be able to sell ourselves wireless headphones more expensive. The other was to scratch millimeters that could be used with the battery. The same thing happens with the most recent movement to banish physical SIM cards.
In mobile phones where everything is extremely small and compact, the battery gaining only a few millimeters translates into greater capacities. Because, as much as Chinese mobile phones, especially the folding onesare mounting denser new generation batteries, it is still a space game: the bigger, the more capacity. At least with current technology.
The S26 Ultra not only keeps the S-Penbut it is also somewhat thinner than the S25 Ultra while including a larger vapor chamber. No matter how much Samsung makes a denser battery, physically there are elements that steal internal space. This means that the 5,000 mAh must be maintained.
Because if in other mobile phones, such as the aforementioned folding ones or in the ultra-thin ones like the iPhone Airwe see that the battery is the protagonist, in the S26 Ultra, in the Ultra family in general, it is just one more element.
And here I have mixed feelings. It is true that it is shocking to see a mobile phone costing more than 1,400 euros with a 60 W charge and a 5,000 mAh battery when models like the Honor Magic8 Pro or the OPPO Find X9 Pro with more than 6,000 mAh or 75.00 mAh respectively and 100 W charges. However, the S26 Ultra remains unique in being special for something that many people continue to appreciate.
The S-Pen is a very cool component that, although it has been losing functionalityallows us to write on the screen, edit documents and photos much more precisely than with our finger and, ultimately, it is an element that continues to exist because Samsung believes that its users continue to find value in it.
If this were not the case, they would have long since loaded an element that makes the production of the mobile phone more expensive and prevents them from moving forward in another direction (adding more battery, for example).
Therefore… yes, the S-Pen is mainly responsible for the 5,000 mAh of the Galaxy S26 Ultra. But, at the same time, it is what means that, in an era in which practically all mobile phones are the same, The Ultra continue to have that “special thing” that differentiates them from all the others.
And, honestly: I hate Samsung for maintaining that hallmark (but let’s see if they can find the formula for the new silicon-carbon batteries that other manufacturers are already implementing).
Photos | JerryRigEveryting, Xataka



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