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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterSame measured average
Sequential write
MiB/s · higher is fasterB is 63.38% higher than A
4 KiB random read
MiB/s · higher is fasterB is 10.44% lower than A
4 KiB random write
MiB/s · higher is fasterB is 15.33% lower than A
Configuration details
| Detail | A · samsung SM-S918U · 256 GB | B · Xiaomi 23127PN0CG · 1024 GB |
|---|---|---|
| Platform | Android | Android |
| Sample count | 2 | 7 |
| Latest measurement | 2026-11-02 | 2025-03-07 |
| Random read IOPS | 18,827 | 16,860 |
| Random write IOPS | 19,571 | 16,571 |
| 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.