Today, Samsung revealed its new line of foldable smartphones, the Galaxy Z Fold 8 Ultra, Z Fold 8, and Z Flip 8. While the reveal of these new phones is undoubtedly exciting, there is one feature of the official debut that is likely to excite some users more than others. While Samsung has avoided silicon-carbon batteries in the Galaxy S26 lineup, it appears the company is ready to fully embrace them now with the release of the Galaxy Z Fold 8 and Z Flip 8 lineup. Samsung’s latest foldable phones are far from the first Android phones to use silicon-carbon batteries. However, this development is likely to be interesting for consumers, especially since competing smartphone makers like Google and Apple are not yet using silicon-carbon batteries.
Although silicon-carbon can hold more energy, silicon expands much more than the graphite used in traditional smartphone batteries. Given that Samsung has had its fair share of problems with batteries in the past – let’s not forget the Note 7 debacle – it makes sense that the company would take its time before introducing a new battery type to one of its major flagship lines. According to reports, the company has found a way to not only provide silicon-carbon batteries to its Galaxy Z Fold 8, Z Fold 8 Ultra, and Z Flip 8, but it has also found a way to do so without compromising the quality of battery life that Samsung users have become accustomed to in more recent Galaxy devices, such as the Galaxy S26 Ultra.
Silicon-carbon always reliable
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It makes sense that Samsung would push silicon-carbon batteries to its foldables first. After all, these devices need to be relatively thin while still packing all the features users expect from them, including long battery life, fast charging, and high-performance software. Given everything we know about the Z Fold 8 Ultra and the rest of the lineup so far, these phones seem to offer pretty decent performance. So, being able to provide a high quality, high capacity battery is essential to help keep these premium components powered and in good condition.
Based on responses to media questions from Android Authority and others regarding the new battery configuration, Samsung claims to have devoted a lot of resources and energy to “optimizing the percentage of silicon” used in the batteries of the Galaxy Z Fold 8 and Z Flip 8 series. Additionally, the company claims to have designed this system “at the hardware level” to ensure that it can deliver not only high capacity, but also the long-term stability and reliability that Samsung users have come to expect, while working in a compact format. finer. The move to silicon-carbon also brought a capacity boost to the Z Fold lineup, as the Galaxy Z Fold 7 was equipped with a 4,400 mAh battery, while the Galaxy Z Fold 8 Ultra will sport a 5,000 mAh battery, putting it more on par with traditional panel phones like the Galaxy S26.
A costly upgrade
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The only real downside to Samsung finally adopting silicon-carbon is that you’ll need to upgrade your smartphone if you want to take advantage of it. And that’s becoming increasingly difficult to justify now that prices continue to rise amid a persistent RAM shortage.
You could argue that these increases also affected the Galaxy Z Fold line, but that wouldn’t be an apples-to-apples comparison this year, since Samsung went from one foldable book style (Z Fold 7) to two (Z Fold 8 and Z Fold 8 Ultra). Still, the Z Fold 8 starts at $1,899.99 and the Z Fold 8 Ultra will start at $2,099.99 when it launches, which effectively matches last year’s $1,999.99 starting price for the Z Fold 7. So that’s a difference of $100, give or take, but that’s just for the smaller storage variants (256GB). If you want more storage, you’ll have to pay even more, with the 1TB Galaxy Z Fold 8 Ultra reaching $2,699.99.
Elsewhere, the Galaxy Z Flip 8 starts at $1,199.99 for the 256GB variant. That’s a $100 price hike over last year’s 256GB Galaxy Z Flip 7 ($1,099.99).
It’s also worth noting that the introduction of the Ultra moniker in the Z Fold 8 Ultra isn’t a big move from the Z Fold 7. However, as Samsung introduced its new, larger foldable as the Z Fold 8, the Ultra has been added as the highest tier version if you want the same design style as the company’s previous foldables. None of these price increases are in any way extravagant. However, it’s worth knowing what you’re getting into if you’re tempted to buy one of Samsung’s latest foldables to try out a silicon-carbon battery for yourself.
