Key Takeaways
1. The Galaxy S26 Ultra features a 5,000 mAh battery, similar to its predecessors, but recent tests show it may need a larger battery for better performance.
2. In battery drain tests, the Galaxy S26 Ultra achieved 9 hours and 8 minutes, ranking near the bottom compared to competitors.
3. Competing flagship phones outperformed the Galaxy S26 Ultra, with the iPhone 17 Pro Max at 9 hours and 41 minutes, the Xiaomi 17 Pro Max at 10 hours and 3 minutes, and the OnePlus 15 at 12 hours and 31 minutes.
4. The previous model, Galaxy S25 Ultra, had a better performance at 8 hours and 40 minutes, placing it between the Pixel 10 Pro XL and the new S26 Ultra.
5. Samsung is considering larger batteries for future devices and plans to implement Silicon-Carbon chemistry, following trends set by rival companies.
Samsung has just launched the Galaxy S26 Ultra, marking it as their seventh “Ultra” smartphone. This new model carries a 5,000 mAh battery, just like its predecessors. However, despite improvements in efficiency each year, a recent battery drain test shows that Samsung should consider using larger batteries in future devices.
Battery Performance Compared
According to a test conducted by Tech Droider, the Galaxy S26 Ultra ranks near the bottom when compared to other current flagship phones. Specifically, it only outperforms the Google Pixel 10 Pro XL, which recorded a time of 8 hours and 22 minutes. The Galaxy S26 Ultra, in contrast, achieved a run time of 9 hours and 8 minutes.
Competing Models
Unfortunately for the Galaxy S26 Ultra, it falls short against several competitors. The iPhone 17 Pro Max managed 9 hours and 41 minutes, the Xiaomi 17 Pro Max reached 10 hours and 3 minutes, and the OnePlus 15 topped the list with a remarkable 12 hours and 31 minutes. For some context, last year’s Galaxy S25 Ultra had a performance of 8 hours and 40 minutes, landing it between the Pixel 10 Pro XL and the Galaxy S26 Ultra.
The Need for Larger Batteries
While one battery drain test is not definitive, the results suggest that Samsung needs to include larger batteries to stay competitive. For instance, the Xiaomi 17 Pro Max boasts a 7,500 mAh battery, while the OnePlus 15 is equipped with a 7,300 mAh unit. Fortunately, it seems Samsung is already considering this move, as there’s been recent acknowledgment that they will be implementing Silicon-Carbon chemistry, a trend that rival companies are already embracing.
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