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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.03% higher than A
Sequential write
MiB/s · higher is fasterB is 293.43% higher than A
4 KiB random read
MiB/s · higher is fasterB is 61.44% higher than A
4 KiB random write
MiB/s · higher is fasterB is 42.00% higher than A
Configuration details
| Detail | A · vivo V2124 · 128 GB | B · realme RMX3871 · 256 GB |
|---|---|---|
| Platform | Android | Android |
| Sample count | 15 | 11 |
| Latest measurement | 2025-11-20 | 2026-08-30 |
| Random read IOPS | 6,199 | 10,008 |
| Random write IOPS | 4,199 | 5,962 |
| 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.