data speed

[அர_ண_]

How show data transfer speed inspector panel  in Samsung Galaxy m21 

[Ehsank]

if you mean data speed indicator then you can download speed meter lite from playstore its very tiny and useful app

[Xajib]

third party app !!! 😱

[prashantpophale]

why third party app,
Samsung must provide with phone os,some times don't know my phone's data is live or dead.

[DiwakarDubey]

here comes game of samsung they don't provide basic features just only thing you have to go with third party app