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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.10% higher than A
Sequential write
MiB/s · higher is fasterB is 53.07% lower than A
4 KiB random read
MiB/s · higher is fasterB is 55.24% lower than A
4 KiB random write
MiB/s · higher is fasterB is 97.17% lower than A
Configuration details
| Detail | A · Xiaomi Redmi K20 Pro · 256 GB | B · iPhone X(iPhone10,3) · 64 GB |
|---|---|---|
| Platform | Android | iOS |
| Sample count | 8 | 93 |
| Latest measurement | 2026-05-28 | 2025-12-08 |
| Random read IOPS | 9,609 | 4,301 |
| Random write IOPS | 81,633 | 2,314 |
| 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.