Ookla Benchmarks Reveal Samsung Foldable Speed and Signal Trade-Offs

With Apple’s first foldable smartphone launching in late October, consumers are scrutinizing the current Android competition to gauge what to expect. Ookla, the company behind Speedtest.net, has released detailed performance data for six major foldable devices available in the United States. This report offers a concrete look at how these flexible phones compare to their rigid, standard counterparts in everyday usage.

The study covers Samsung’s Galaxy Z Fold6, Fold7, Fold8, Fold8 Ultra, Flip6, and Google’s Pixel 10 Pro Fold. For each device, Ookla used the matching "slab" model with the same processor as a control group. This methodology helps isolate the impact of the folding mechanism itself, though minor differences in antenna placement and software remain variables that can affect results.

Speed leaders face signal quality trade-offs

In raw speed tests, the Galaxy Z Fold8 Ultra emerged as the top performer, excelling in download and upload speeds as well as packet loss reduction. The base Galaxy Z Fold8 was close behind, actually showing slightly better median download speeds in some tests. However, this speed advantage came with a distinct drawback in connectivity stability.

Despite sharing the same Snapdragon 8 Elite Gen 5 chipset and modem as the Galaxy S26 Ultra, the Fold8 models underperformed in signal quality measurements. The S26 Ultra consistently delivered stronger signal strength. Interestingly, the older Galaxy Z Fold6 posted the best signal scores in both good and bad conditions, suggesting that newer models have not yet resolved the connectivity hurdles associated with their folded design.

Thermal management shows inconsistent generational progress

Temperature performance varied significantly across the lineup. The Galaxy Z Fold7 ran the coolest compared to its control device, while the Galaxy Z Flip6 was the hottest. A more concerning trend appeared in throttling benchmarks, where the operating system slows down to prevent overheating. The Fold7 showed a major improvement over the Fold6, but the Fold8 and Fold8 Ultra saw a significant decline in this area, indicating a regression in thermal management for the latest models.

Samsung maintains dominant foldable market share

Beyond technical specs, the report highlights market dynamics. According to Speedtest data, the Galaxy Z Fold7 is currently the most popular foldable smartphone globally. While competitors like Motorola, Google, and Honor are slowly gaining ground, Samsung still controls more than 77 percent of the foldable market. This dominance positions the company strongly as Apple enters the space, though the arrival of the iPhone Duo on October 23 could shift consumer preferences.