I am looking to purchase one of these tools for Mobile testing for my team. It should support Native, hybrid, and responsive app testing. It should also feature debugging, parallel execution, automation testing/easy integration with automation testing tools like Selenium, and the capability to provide availability of devices specifically for us to use at any time with good speed of performing all these activities.
I have already used Perfecto mobile, and Sauce Labs in my other projects before. I want to know how different or better is AWS Device farm in usage and how advantageous it would be for us to use it over other mentioned tools
A SaaS offering like Sauce Labs (or BrowserStack or LambdaTest, etc) will provide a remote Selenium/Appium Grid including the ability to run test automation in parallel (up to the amount based your subscription level) an a wide array of browsers and mobile devices.
These tools can be expensive, but if you can afford them, the expertise and effort of maintaining the grid, browser updates, etc. is worth it.
AWS Device Farm can be significantly cheaper, but is much more work to setup and run. It will not give you as many devices, or the reporting and screen/video capture you get with the the services. And there is no support for AWS Device Farm, and very poor documentation. I have used it, but do not recommend it. Running your own grid and physical device lab is better, but I'd stick with a service like Sauce Labs or Perfecto which will save you time and give you better services despite the higher price tag.