Read. Write. Transfer.
Measure continuous read and write speeds to understand how your storage handles large files.
iOS · Android · Windows · macOS
Know your storage.
Measure the difference.
Jazz Disk Bench measures sequential and random read/write performance. Test your device, explore real results, and compare storage configurations.
Measure what matters
From large files to small operations.
Look beyond peak speed.
Test 4 KiB random reads and writes at queue depth 1, with one thread. Explore speeds and IOPS.
Watch performance over time.
Use sustained writes to explore storage behaviour during longer workloads.
A database you can explore
Your Model.
Your capacity.
The full picture.
Browse measured results from the Jazz Disk Bench community. Open a Model to see its capacities, or choose any two configurations for a detailed comparison.
Start with your own device
Get Jazz Disk Bench.
Choose your platform and start measuring.
Download Android APKWhat does Jazz Disk Bench measure?
Sequential and 4 KiB random read/write speed, with stress testing for longer write workloads. The results database shows average read/write measurements grouped by Model, capacity and platform.
Can I compare different storage capacities?
Yes. Each comparison item includes its Model and capacity. You can compare 512 GB with 256 GB, including two capacities of the same Model.
Does a test read my personal files?
No. Tests use temporary benchmark files. Your personal files are not read as benchmark data. Read the privacy policy.