What is the difference between manual and Automation testing?

In manual testing, a human performs the tests step by step, without test scripts. In automated testing, tests are executed automatically via test automation frameworks, along with other tools and software.
When manually testing, the tester validates the key features of a software application. Analysts execute test cases and develop summary error reports without specialized automation tools.
Automated testing helps testers execute more test cases and improve test coverage. When comparing manual vs. automation testing, manual takes longer. Automated testing is more efficient.
Both have their strengths and weaknesses. Manual testing is slow and tedious. But its strength is that it better handles complex scenarios. Automated testing requires coding and test maintenance. But on the plus side, it is much faster and covers many more permutations.
Manual:
• Done manually by QA testers.
• Time-consuming and less efficient.
• Entirely manual tasks.
• Difficult to ensure sufficient test coverage.
• less expensive as one does not need to spend a budget on automation tools and processes.
• Manual testing is flexible as it can adapt easily to changes in the user interface.
Automation:
• Done automatically using automation tools and scripts.
• More testing in less time and greater efficiency.
• Most tasks can be automated, including real user simulations.
• Easy to ensure greater test coverage.