What Is Difference Between Service and Thread in Android?

Service : is a component of android which performs long running operation in background, mostly with out having UI. Thread : is a O.S level feature that allow you to do some operation in the background. Though conceptually both looks similar there are some crucial differentiation.

Is Android service a thread?

It is neither, any more than an activity is “a process or a thread”. All components of an Android application run inside a process and by default utilize one main application thread. You can create your own threads as needed. Service is not a process nor a thread.

What are threads in Android?

A thread is a thread of execution in a program. The Java Virtual Machine allows an application to have multiple threads of execution running concurrently. Every thread has a priority. Threads with higher priority are executed in preference to threads with lower priority.