Device Farm is service which provides managed Web and Mobile application testing
We can test an application on a fleet of real browser and devices
Device Farm provides access to real devices: phones, tablets, different languages, sizes and operating systems
We can use build in or supported automated testing frameworks from which we can receive reports detailing testing output
It also supports remote connection to devices for issue reproduction and testing
We can define tests using testing tools such as Explorer (Android), Fuzz (Android, iOS), Web app Tests, Appium, Calabash
We can configure which devices we want to use for testing (huge selection is available). We can configure device state, additional apps, radio states, locations, etc.