Use the best SD card testing tool! Test the speed of internal or external storage!
+ Measure the speed of your external (removable) SD card
+ Measure the speed of your internal storage
+ Verify written data: detection of damaged or false card
+ Reading / writing tests using several different combinations.
+ Custom benchmarks
+ Storage type and class detection
+ Portable and adoptable storage stand too
(4.1 and up)
Lollipop (5.0 - 5.1.1),Marshmallow (6.0 - 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)