Samsung · Reviewed by GadgetIn · Published 2026-07-23
Based on a review by GadgetIn (accessed 2026-07-23).
Based on this review alone: buy it if you care about adoption of silicon carbon battery technology — just accept higher prices for storage and ram upgrades compared to previous generations.
The reviewer, a long-time Fold 7 user, is particularly impressed and 'happy' with the significant battery capacity and charging speed upgrades on the Galaxy Z Fold 8 Ultra. He believes Samsung has finally made a crucial leap forward with its foldable technology, especially regarding the battery, and is excited to try it out.
This review covers Samsung's mid-2026 Unpacked event in Jakarta, focusing on the launch of three new foldable phones: the Samsung Galaxy Z Flip 8, Samsung Galaxy Z Fold 8, and Samsung Galaxy Z Fold 8 Ultra. The reviewer details the new naming convention, key feature upgrades, and design characteristics of each model, particularly the all-new mid-sized Fold 8.
This foldable smartphone represents a truly significant and long-awaited upgrade, primarily due to its vastly improved battery system. Samsung finally adopted silicon carbon battery technology, boosting capacity from 4,400 mAh to 5,000 mAh, and increased charging speed from 25W to 45W, addressing the reviewer's biggest complaints from previous models. However, the general market trend dictates higher prices for storage and RAM upgrades, making the overall cost of the device feel elevated compared to prior years. If you are an existing Galaxy Z Fold user seeking substantial improvements in endurance and charging, this model is a compelling choice. It excels particularly for users who prioritize all-day battery life and quick top-ups in a flagship foldable.
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The reviewer notes the Fold 8 is wider and shorter than the traditional Fold, but not as short or square as the Flip. He demonstrates it fitting perfectly into a shirt or school uniform pocket, highlighting its compact, pocketable size.
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The Galaxy Z Flip 8 uses a new, faster, and more efficient Exynos 2600 chipset built on a 2nm process, an upgrade from the Exynos 2500 (3nm). Samsung claims this makes the Z Flip 8 up to 37% faster.
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The Flip 8 retains the same battery capacity (4300 mAh), charging speed (25 watts), dual camera setup and specs, display, RAM, and memory variants as its predecessor.
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The Flip 8 is 8 grams lighter and 0.5 millimeters thinner. The reviewer notes that while 8 grams is noticeable, he feels the 0.5 mm thickness reduction will not be perceived by users.
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The Galaxy Z Fold 8 Ultra now uses silicon carbon battery technology, allowing for an increased capacity from 4400 mAh to 5000 mAh while maintaining a slim form factor.
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The charging speed for the Galaxy Z Fold 8 Ultra has been upgraded from 25 watts to 45 watts, a significant improvement.
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As a daily driver of the Galaxy Z Fold 7, the reviewer expresses significant happiness with the Fold 8 Ultra's battery and charging upgrades, citing these as his biggest complaints with the previous model.
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The reviewer notes that all three new foldable models (Fold 8 Ultra, Flip 8, and the new Fold 8) now use silicon carbon batteries, implying that Samsung considers this technology safe and approved for widespread use after previous hesitation.
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The Fold 8 Ultra is powered by the flagship Snapdragon 8 Elite Gen 5 for Galaxy processor. Its ultrawide camera has been upgraded from 12 MP to 50 MP, while the main 200 MP camera and 10 MP telephoto (with OIS and 3x optical zoom) remain the same.
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Despite the larger battery, the Fold 8 Ultra maintains a slim design due to the space-saving silicon carbon battery technology, weighing 215 grams.
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The new Fold 8 features a 5.5-inch 16:10 ratio cover screen and, when unfolded, reveals a 7.6-inch 4:3 ratio inner screen.
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The Fold 8 is positioned in the middle of the Fold Ultra and Flip in terms of size, with its 5.5-inch cover screen being larger than the Flip's 4.1-inch but smaller than the Fold Ultra's 6.5-inch screen.
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The reviewer finds both the 16:10 cover screen (like a mini-laptop) and the 4:3 inner screen of the Fold 8 excellent for content. The 4:3 inner screen is described as more natural and 'correct' than the Fold Ultra's squarer screen for reading documents, browsing, and watching vertical videos.
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The reviewer demonstrates that the Fold 8's wide design makes it difficult to comfortably grip with one hand, even for his large hands, as he cannot reach from end to end. He implies a different interaction style will be needed, reminiscent of older BlackBerry devices.
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The Fold 8 features two 50-megapixel cameras (wide and ultrawide), the same flagship Snapdragon 8 Elite Gen 5 for Galaxy processor as the Fold Ultra, and a 4800 mAh battery, placing its specs in the middle of the Flip and Fold Ultra.
The Galaxy Z Flip 8's primary upgrade is a more powerful and efficient Exynos 2600 (2nm) chipset, which Samsung claims is up to 37% faster. It's also 8 grams lighter and 0.5mm thinner. However, its battery capacity (4300 mAh), charging speed (25W), camera specifications, display, RAM, and internal memory remain unchanged from the previous version. It also now uses silicon carbon battery technology.
The Galaxy Z Fold 8 Ultra features a major improvement in battery technology, now using silicon carbon to achieve a 5000 mAh capacity, up from 4400 mAh. Its charging speed has also been significantly boosted from 25W to 45W. The reviewer, a Fold 7 user, expressed strong satisfaction with these changes, noting that battery life and charging speed were major pain points in previous models.
Samsung has introduced a new naming system for its 2026 foldables. The Galaxy Z Flip 8 retains its name. The newly introduced mid-sized foldable is named the Galaxy Z Fold 8. The traditional larger foldable, previously just 'Fold,' is now called the Galaxy Z Fold 8 Ultra, signifying its top-tier status.
The Galaxy Z Fold 8 introduces a unique form factor, described as wider than the traditional Fold and shorter, though not as compact as the Flip. It features a 5.5-inch 16:10 ratio cover screen, which feels like a mini-laptop, and a 7.6-inch 4:3 ratio inner screen. This design positions it directly between the Flip and Fold Ultra in terms of size and screen ratio, offering a distinct visual and interaction experience.
The reviewer found that the Galaxy Z Fold 8's wider form factor makes it challenging to hold and grip comfortably with one hand, even with large hands, as they couldn't reach across the screen. This suggests a different interaction style compared to traditional phones, reminiscent of older BlackBerry devices, where two-handed use or specific finger placement might be required.
The Galaxy Z Fold 8 is powered by the flagship Snapdragon 8 Elite Gen 5 for Galaxy processor, matching the Fold 8 Ultra's performance. It features two 50-megapixel cameras (wide and ultrawide), offering higher resolution than the Flip 8's cameras. The battery capacity is 4800 mAh, placing it between the Flip 8 and Fold 8 Ultra in terms of battery size.
60/100 source quality
Samsung unveiled its latest foldable lineup for 2026, introducing the Galaxy Z Flip 8, Galaxy Z Fold 8, and a new flagship, the Galaxy Z Fold 8 Ultra. The Fold 8 is an entirely new model with a unique, wider form factor and distinct screen ratios, positioned between the Flip and the Ultra. Key upgrades include a faster chipset for the Flip 8 and substantial battery improvements, including silicon carbon technology and faster charging, for the Fold 8 Ultra. The reviewer also highlights the Fold 8's unique screen experience for content consumption and notes its challenge for one-handed use.
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