The bar graph illustrates how many of three different gadgets were sold in the first quarter of 2019. The units are measured in millions.
Overall, despite demonstrating the smallest sales initially, the largest growth was observed in smartphone sales. Interestingly, each device dominated in certain periods; regardless, laptops had stood out as the most popular one twice.
Regarding smartphones, even though their sales were relatively small among the other gadgets in January, after witnessing a sharp rise, they reached a peak of around 75 units. In contrast, having undergone a rapid decline, they lost their popularity, constituting two fifths.
As for laptops, which dominated as the leading product in January, accounting for almost 50 units, and experiencing a decrease of about 25 units in March. However, they ended up demonstrating the highest sales among the others, reaching approximately 53 units.
When it comes to tablets, they went up in sales from nearly 30 units to nearly 65 units between January and March, being the highest in February. In spite of this growth, they ultimately became the least popular in April, making up around 25 units.