iOS · Storage benchmark
iPhone XS(iPhone11,2)
Sequential and 4 KiB random read/write performance, measured with Jazz Disk Bench.
Sequential read
798.44MiB/s
Average transfer speed
Sequential write
566.29MiB/s
Average transfer speed
4 KiB random read
31.94MiB/s
8,178 IOPS · Q1T1
4 KiB random write
19.02MiB/s
4,870 IOPS · Q1T1
Every capacity, one place
Results by capacity
Measurement details
- Data source
- Submitted measurements
- Recorded workload version
- jazz-zero-v1
- Grouping
- Model, capacity and platform
- Sample count
- Number of recorded test runs, not unique devices
Results checked · Speeds in MiB/s · About these measurements
Reading these results
These are average measured speeds for the selected Model, capacity and platform. Sequential tests describe large-file transfers; random Q1T1 tests describe small-block operations. Storage capacity, free space, temperature and background activity can affect results.
Compare individual read and write measurements to match your workload. Read the test methodology or learn why results vary.