Great integration with Gemini, exciting new features in the photography sector, the most powerful processor in the industry and new design that we have been waiting for years for the most perfect model. Here are some of the improvements that have made it possible Unpacked 2025 and what Samsung has shown as its main asset is the purchase of one of the new Galaxy S25, S25+ or S25 Ultra. But like everything in this life, it is impossible to get everything right in every section, and There is one that the Korean company completely forgot about..
What’s the big drawback of the Samsung Galaxy S25? Battery. The company did not carry over any figures from year to year, and supports the same mAh in each model. The design and dimensions of the new devices remain virtually unchanged, with the exception of the new Ultra, which may justify the lack of news in this section.
Samsung has gone too far when it comes to talking about its batteries, autonomy and fast chargingimplying that there is not much room for improvement in this section. This is true? Are there any important milestones in the industry? Is Samsung Left Behind?
Galaxy S25 forgets about the most important innovation in the battery industry in recent years
We are not exaggerating at all. In the last quarter of 2024, the battery industry, especially for mobile phones, reached a very important milestone: marketing and distribution of silicon-carbon cells. Not only are they fully developed, but there are already several smartphones on sale that integrate them.

A good example is Xiaomi 15, a device presented in China a couple of months ago with an increase of almost 900 mAh compared to the previous generation. The most interesting thing? Its thickness has increased by only 0.1 millimeters.practically nothing. All thanks to the higher energy density of silicon-carbon.
Even much more modest models rely on this technology. In the mid-range is the Honor Magic7 Lite, a new product in Spain that we were able to test and which boasts 6600 mAh in a case with a diameter of 7.98 mm and a weight of 189 grams.. For comparison, the Galaxy S25 Ultra has a 5,000 mAh battery and is 8.2 millimeters thick.
With these numbers on the table, it’s impossible not to think that Samsung missed a good opportunity to change the situation. The choice of silicon-carbon batteries in the Galaxy S25 series would be a real revolution and a very important leap compared to the previous generation.

Only time will tell whether Samsung is wrong in this decision, although one thing seems quite clear: competition, especially that coming from China, wants to revolutionize autonomy by 2025 and produce mobile phones with huge batteries that are not constrained by thicker or heavier designs than usual. It’s a shame Samsung didn’t take advantage of this opportunity.
Fast charging, but not too fast
In 2025, not only will we have batteries identical to the 2024 generation, also fast charging that does not move a single watt (W). Samsung is again going for 45W in the Galaxy S25+ and S25 Ultra, with the Galaxy S25 at 25W at the bottom of the list.
This is another section that leaves us with a bittersweet taste. Samsung and Apple are locked in a lonely battle over slow fast charging, and while the market isn’t demanding the dreaded 200W, it’s backing the brands it prefers raise the level a little and allow 80 or 90 W recharge.

Numbers of new mobile phones, not counting the slow ones – 25 W Galaxy S25 yes, everything needs to be said -, They are at the bottom of the industrywhich doesn’t quite add up when we’re talking about three mobile phones that are set to rule the high-end segment for most of 2025.
The Samsung Galaxy S25 are great devices, they come with a good dose of artificial intelligence, some of the best cameras of the year and unmatched performance for gaming, but they failed to complete and justify the generational step when we talk about battery and fast charging. Using silicon-carbon would have been the pinnacle, but Samsung wanted to save that technology for later.
Source: Hiper Textual

I’m Ben Stock, a highly experienced and passionate journalist with a career in the news industry spanning more than 10 years. I specialize in writing content for websites, including researching and interviewing sources to produce engaging articles. My current role is as an author at Gadget Onus, where I mainly cover the mobile section.