IELTS WRITING TASK 1 - Bar chart about global mobile phone sales of five brands in various years.

The bar chart compares the revenues of five mobile phone brands throughout 2009, 2011 and 2013.
Overall, ZTE, especially Samsung and Apple, demonstrated a remarkable increase in their sales figures, with Samsung overtaking Nokia as the most successful phone brand in 2013. LG and Nokia, however, registered a steep decline in their revenues.
Among the brands that experienced an uprising in sales figures, Samsung displayed the most significant growth, almost doubling their figures from $250 million to $450 million, eventually becoming the top-selling brand in 2013. Apple also saw a drastic increase, albeit less drastic than Samsung, from about $25 million in 2009 to $150 million in 2013. ZTE also exhibited a slight growth in its figures, from $50 million in 2009 to about $52 million in 2013.
Conversely, Nokia and LG experienced substantial declines in their sales volumes. Nokia, despite being the most purchased mobile phone brand in 2009 with a global revenue of $450 million in 2009 , plummeted to just $250 million in 2013, only matching Samsung sales figures in 2009. LG figures likewise recorded a decrease, albeit to a much lesser degree, falling from $125 million in 2009 to just $75 million in 2013.

41 days until test. I am aiming for a band 7+ score on both writing tests. Appreciate it!

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  The bar chart below is about global phone sales of five brands in various years.
  

Kindly remember that you need to properly format the report as that is a part of your task accuracy score. Always write in paragraph form. The task 1 essay should have 3-4 paragraphs in it.

You did a good job in spreading out the summary overview information between the introduction and the trending statement, It shows an intermediate grasp of English sentence formation. The comparison information was clear and easy to understand. You may want to be more specific with your image identifier though. Don't just say "bar graph" because there are several types of bar graphs. In this case, the reference could be a "columnar bar chart".

This is a pretty solid piece of writing. The word count is perfect. The scoring considerations will be maximized for sure. This is a well written and well developed essay. It will receive a higher than average score.