The International English Language Testing System, or IELTS, is an international standardized test of English language proficiency for non-native English language speakers. It is managed by the IDP. IELTS is one of the major English-language tests in the world.
The only key to score 7+ in speaking is NOT to push yourself for high vocabulary words. You might have seen many of the mentors speaking about using higher vocabulary words which I feel is not necessary. To score a 7+ band in speaking, one has to practice speaking English daily and try to be as fluent as possible.
The IELTS consist of four sessions. They are Speaking, Listening, Reading and Writing. There are two different IELTS modules Academic and General Training. The Speaking and Listening tests are the same in both modules, but the Reading and Writing tests are different. The general test needs to be taken by the people who are moving to English speaking country for PR or jobs. Whereas academic has to be taken by the people who are moving to English speaking country for higher studies or any other course.