Samsung's latest Galaxy Z Fold 8 and Ultra models represent a significant leap forward for foldable smartphones, showcasing advancements in battery performance, display technology, and overall user experience since the original Galaxy Fold debuted in September 2019.
Power and Charging
The charging experience on current foldables is vastly different from their predecessors. Despite larger battery capacities, the Z Fold 8 series boasts 45W wired fast charging, a substantial upgrade from the original Fold's 15W. This allows for a 50% charge in approximately one-third less time, with a full charge completed in just over an hour—a stark contrast to the nearly two hours required in 2019. This improvement is partly attributed to the shift from Lithium-Ion to Silicon-Carbon battery technology, enabling faster charging speeds without overheating and fitting within slimmer frames.
Display Technology
Seven years ago, the first Galaxy Fold featured a 4.6-inch external screen and a 7.3-inch internal display. Today's Z Fold 8 Ultra offers an even larger 8-inch internal screen, but the most significant evolution is the 6.5-inch external display, which is over 40% larger due to more efficient use of the handset's real estate. Beyond mere size, resolution and pixel density have seen considerable increases, making modern displays far superior to those of early foldables. The refresh rate has also doubled from 60Hz to 120Hz, providing much smoother motion, though early models theoretically supported 60Hz, their practical implementation was limited.
Brightness levels have also seen a dramatic improvement. The original Fold's display peaked at 380 nits, while the latest models reach an astonishing 3,000 nits, offering a night-and-day difference in outdoor visibility.
Gaming Performance
The performance gap in gaming between the original Fold and the current generation is immense. The Snapdragon 855 processor and Adreno 640 GPU in the first Fold struggled with graphically demanding titles, often resulting in choppy sub-30 frames per second. In contrast, the Z Fold 8 series, powered by the Snapdragon 8 Elite Gen 5 for Galaxy and Adreno 840, comfortably handles modern 3D games at a stable 60 to 120 FPS. Features like hardware-accelerated Ray Tracing and AI-powered upscaling, now commonplace, were unimaginable in 2019.
Enhanced Durability and Design
Advancements in mobile chip technology have also led to improved thermal management, allowing the Z Fold 8 to remain cool during intensive tasks like gaming or multi-window use, preventing performance throttling. The original foldables were known for their fragility and visible screen creases. Today's models feature a virtually seamless display thanks to titanium alloy film and supporting flexible plates. Furthermore, the Z Fold 8 folds completely flat, eliminating the gap where pocket lint could accumulate and potentially damage the device, as was an issue with earlier models.
Additional Improvements
Beyond core functionality, other enhancements have transformed the user experience. While the original Fold was susceptible to water damage, current models offer IP48 water resistance. Camera capabilities have also seen a massive upgrade, with the Fold 8 Ultra featuring a 200MP sensor compared to the original's 16MP. Video recording has advanced to 8K and HDR10+, and internal storage has doubled from 512GB to 1TB.
Taken together, these cumulative improvements over a relatively short period demonstrate a revolutionary leap in what consumers can expect from foldable smartphones.