A real device always provides maximum performance and speed, because the emulator is a virtual device, and you cannot expect all the functions and functions, as on a real device.
One more thing: if you run the emulator, then it will also use the RAM of the machine and configuration. Thus, you must have a good configuration if you want to develop an application and testing on an emulator.
In any case, you can try Genymotion , which is promising.


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