Support for Third-Party Emulators and Real Devices

Having an emulator does not eliminate the need to test your application on actual target devices. An emulator can only approximate a device’s user interface, functionality, and performance. For example, an emulator may not accurately simulate processing speed, so an application may run faster or slower on a target device than it does on an emulator.

Java ME SDK simplifies deployment to and debugging on real devices running the Sun Java runtime.