The chart in the “Trade” tab allows you to analyse price movements of the selected trading pair over a specific period of time.
The vertical scale displays the price movement, while the horizontal one displays the timeframe. You can change the timeframe from 1 minute to 1 month in the upper left corner of the chart.
You can also enlarge the chart to full screen by tapping on the square icon in the upper right corner of the section or send it to other people by tapping on the share icon.