If you have implemented many automated tests with Robotium, you will notice that Robotium is not the fastest tool when it comes to test execution time! Especially in big projects with more than 100 automated Robotium tests the execution time is really long (>1h). For nightly regression testing this is not a problem, but If you want to know if a simple commit from a developer break something, executing the whole test suite is not very efficient. To get a much faster impression of the quality of the last commits, you can build for example a smoke test suite. This suite covers the basic functionality like login, clicking on important entries but not all edge cases, like a full regression test suite will do.