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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.07% higher than A
Sequential write
MiB/s · higher is fasterB is 18.78% higher than A
4 KiB random read
MiB/s · higher is fasterB is 147.09% higher than A
4 KiB random write
MiB/s · higher is fasterB is 11.71% higher than A
Configuration details
| Detail | A · samsung SM-S908U · 128 GB | B · samsung SM-N976N · 128 GB |
|---|---|---|
| Platform | Android | Android |
| Sample count | 47 | 7 |
| Latest measurement | 2026-08-30 | 2025-09-24 |
| Random read IOPS | 10,577 | 26,135 |
| Random write IOPS | 9,351 | 10,445 |
| 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.