SAMSUNG: Samsung mobile is a South Korean company founded in 1983. Its parent company, Samsung Electronics, was founded in 1969. Samsung was well known as a television company and of household appliances. It started growing and expanding its business in the telecommunications sector from 1977. Samsung is now considered one of the best mobile phone companies and millions of customers use Samsung services and products around the world. It wasn't until the 2009s that Samsung paid serious attention to smartphones, but once it woke up, it hit the ground running. He developed new business strategies and executed them perfectly. Samsung mobiles used all the operating systems available on the market. They got their hands on Symbian smartphones, Windows mobile smartphones, Google Android smartphones and Microsoft 7 phones. Not only they also launched their own operating system 'Bada', which sold a million copies in a month. Samsung's startup began with the introduction of the Galaxy S series running on Android. The most beneficial strategy adopted by Samsung was to license third parties. This means that Samsung can optimize its smartphones for any given operating system and its capabilities. In other words, we can say that Samsung introduced a new phone with each new release, upgrading its operating system and placing it on the rival platform. Samsung is believed to be using a pincer movement strategy against its competitors. This somehow worked on the emergence and accelerated their development. Their motto was to come up with innovative ideas and, once implemented, start working on another innovative idea. They made it a continuous process of searching for new innovations and surviving in battle. NOKIA: Nokia Corporation was first established in 1967....... middle of paper ...... change, but also acted as a guardian was unable to implement changes effectively. He ensured that the company's ideas and values ​​did not change, even if they did not achieve the desired result. Nokia can also be called a performer because he also discussed the changes within the organization. This is evident from the fact that decisions for change were made by the local and national team rather than the centralized board. But this interpretation is a bad interpretation for the company. We can also say that Nokia showed ego by refusing to adopt the Android system in its mobile. This decision taken by Nokia turns out to be the biggest mistake in its history. All attempts by Nokia to make a comeback fail, and Nokia has now realized that this was their biggest mistake and now they have missed the time..