When exactly do we need to use MobileCapabilityType

Question

I have come across two ways to add/set capabilities.

1. capabilities.setCapability(MobileCapabilityType.DEVICE_NAME, "Android Emulator");

   and

2. capabilities.setCapability("deviceName","Android Emulator");

so my question is how are they different and which is used when?

Answer 1

It's absolutely the same thing.

Using MobileCapabilityType gives you all the options to choose from - Enum. At the bottom line, typing MobileCapabilityType.DEVICE_NAME returns "deviceName"