For many it is important to know the features of mobile technology, its capabilities. From the SoC it has the internal strength and its donor power compared to other terminals, to the end-body material. However, all of this is worth the price, far more than money: device size and weight. And it doesn't matter how much technology is inside of our iPhone if holding it is an impossible task.
In this sense, Apple has worked tirelessly to ensure that its products remain as balanced as possible, maintaining the most precise value and striving to make the devices as compact as possible. But those are just words that have been released in their introductions every year, and more importantly the evidence we can find. In this case, a Reddit user has created comparisons across the iPhone, showing its evolution
Of course, in a user-made graph we can't see all the factors that define the weight and capacity of all models. However, it allows us to see that there was only a significant increase when the screen size matched, either by material or structural changes
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In the end, the biggest conclusion we can learn from these comparisons, as we can do with the rest of the series, is that technology has been growing in power, and in light. Every year, our devices become more advanced, and their size or weight they tend to change significantly when significant external changes are made