Samsung hasn't been great in terms of battery life this year. We were hoping for a flagship model Galaxy S26 Ultra will use a battery with a capacity of at least 5,200 mAh, but proThe gnosis didn't work. It has the same 5,000mAh battery as the Galaxy S25 Ultra. And as with the previous series. The only thing that has improved significantly at first glance is the charging speed. But now the first big endurance test has appeared on the Internet, which compares Galaxy S26 Ultra with other flags. And most people will be not only surprised, but also pleased with the result.
Paper parameters are one thing and reality is another. The fact that Samsung has been using it for several generations in its flagship models 5mAh battery, does not mean that their durability is identical. Quite the opposite. Thanks to various optimizations, it is constantly proowes.
Youtuber Mrwhosetheboss decided to find out how he is doing Galaxy S26 Ultra compared to premium mobiles iPhone 17 Pro Max, Galaxy S25 Ultra, OnePlus 15, Oppo Find X9 Pro, Xiaomi 17 Ultra or Google Pixel 10 Pro XLChinese mobile phones have significantly larger battery capacities, while Apple traditionally bets on smaller capacity with many optimizations. Samsung comes from this as a kind of golden mean. And the tests more or less confirmed it.
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A video showing the entire testing process was posted online by YouTuber Mrwhosetheboss, so you can compare how each phone performs. But the important result is one that will surprise most people – Galaxy S26 Ultra does not reach the durability of Chinese competitors, but it is better than the previous generation and even surpassed iPhone 17 Pro Max.
Endurance test Galaxy S26 Ultra
The endurance test focused on several areas where the phones' results varied. The Youtuber tested them on:
- Scroll through social networks
- Play games
- Run performance tests
- Stream the full movie
In addition to the battery life itself, it is also interesting to see how the individual phones heat up during various activities. According to initial information, it is supposed to have Galaxy S26 Ultra prooverheating issues at high power, due to the chip Snapdragon 8 Elite Gen 5 for Galaxy. However, the current test did not confirm this report – Galaxy S26 Ultra remained cooler than most other phones, while it was worse for iPhone 17 Pro Max.
However, if you are looking for a mobile phone with maximal endurance, avoid Samsung. According to this test, OnePlus 15 and Oppo Find X9 are the clear winners Pro. Strangely enough, at the opposite end he remained iPhone 17 Pro MaxAnd it's not doing too well either Galaxy S25 Ultra. But new Galaxy S26 Ultra is a kind of golden mean and offers real durability around 12 hours. Which isn't bad at all. But of course it depends on what exactly you're doing with it.
It shows that even though Samsung is resisting large-capacity batteries, it still has options to proowe endurance. And that's good. But to the Chinese competition nestAnd since Honor and Xiaomi are already starting to launch mobile phones with up to 10,000mAh batteryand, will have to for a generation Galaxy S27 to work properly. But I'm afraid it won't go much above 5,000 mAh anyway.
You can pre-order a series at Mobil Pohotovosti Galaxy S26 from 600 CZK per month, with a discount of up to 18,800 CZK and especially with a free 3-year warranty. More at mp.cz/samsung-galaxy-S26.
