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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.01% higher than A
Sequential write
MiB/s · higher is fasterB is 41.93% higher than A
4 KiB random read
MiB/s · higher is fasterB is 10.59% lower than A
4 KiB random write
MiB/s · higher is fasterB is 1.73% higher than A
Configuration details
| Detail | A · iPhone19,7 · 512 GB | B · iPhone19,2(iPhone19,2) · 512 GB |
|---|---|---|
| Platform | iOS | iOS |
| Sample count | 7 | 40 |
| Latest measurement | 2026-11-04 | 2026-09-21 |
| Random read IOPS | 15,653 | 13,996 |
| Random write IOPS | 9,769 | 9,938 |
| 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.