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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.04% lower than A
Sequential write
MiB/s · higher is fasterB is 19.92% higher than A
4 KiB random read
MiB/s · higher is fasterB is 54.64% higher than A
4 KiB random write
MiB/s · higher is fasterB is 39.53% higher than A
Configuration details
| Detail | A · samsung SM-G781W · 128 GB | B · Xiaomi M2011K2G · 128 GB |
|---|---|---|
| Platform | Android | Android |
| Sample count | 15 | 3 |
| Latest measurement | 2026-08-17 | 2025-12-22 |
| Random read IOPS | 9,432 | 14,585 |
| Random write IOPS | 7,862 | 10,970 |
| 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.