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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.05% lower than A
Sequential write
MiB/s · higher is fasterB is 33.55% higher than A
4 KiB random read
MiB/s · higher is fasterB is 7.62% lower than A
4 KiB random write
MiB/s · higher is fasterB is 18.99% higher than A
Configuration details
| Detail | A · samsung SM-S9180 · 1024 GB | B · samsung SM-X826B · 512 GB |
|---|---|---|
| Platform | Android | Android |
| Sample count | 5 | 3 |
| Latest measurement | 2025-02-22 | 2026-06-21 |
| Random read IOPS | 14,232 | 13,148 |
| Random write IOPS | 15,682 | 18,659 |
| All capacities | View Model → | View Model → |
Results checked · Speeds in MiB/s · About these measurements
Four tests. A clearer comparison.
Compare sequential and 4 KiB random read/write speeds side by side. Every option includes its Model, capacity and platform. You can compare 512 GB with 256 GB, including two capacities of the same Model.