I think samsung is only lag behind in face lock system . Even not only samsung but also all the Android devices.If samsung upgrade face lock system than samsung will be the world's best phone . I kindly request to every developer and designer that w...

We need a build in app lock for our samsung . There are no build in app lock in samsung. It's very important for our security.I don't know that s series have app lock or not but f series have no app security.We are using third party applications fo...