The provided bar graph compares the online sales of electronic gadgets in millions of units from January to April 2019.
As it is vivid from the chart, the sales of the laptops showed a downward trend in the first three months of the year. This is starting from around 50 million units in January and reducing to 20 million in March, a decrease of 10 million units each month. However, in the fourth month, the sales of laptops hyped and reaching just above 50 million unit.
Moving to the further details, it is noteworthy that, the disposal of smartphones increased gradually in the first three months. Which started from around 19 million units in January and reached its highest sales in March with around 70 million units. The sales then dropped by 30 millions in April. Also, in January, there were only 30 million units of tablets being sold, which doubled in February then levelled off in March. After the increase, the disposals of tablets decreased in April, and sold only 20 million units.
Overall, the given bar graph represents the fluctuations in the sales of electronic gadgets that were sold online from January to April 2019.