Curved Lines and Flat Edges: The Unique Shape of the Galaxy S25 Smartphones
Since the arrival of smartphones, we have seen an evolution from flat formats to curved designs. Shouldn't we have found a definitive solution to this by now?
This year, Samsung has unified the design of its flagship S series phones, leading to the S25, S25+, and S25 Ultra models presenting a similar look and feel (except for the camera). The curved edges of the S24 Ultra have been removed, replaced by more solid and square lines, which are also features of the more affordable models in the Galaxy S series. With flatter sides, it is easier to hold the device, store it in a pocket, or use it for taking photos, which is very helpful for tech review purposes.
The truth is that these new models resemble iPhones, as well as older Galaxy S phones and, of course, even older iPhones. Throughout the history of smartphones, we have seen a back-and-forth between flat and curved designs. Samsung maintained rounded edges for a time, from the launch of the first Galaxy S in 2010 until 2015. Then, the Galaxy S6 introduced flatter edges, but the series returned to curved contours with the S8 in 2017, maintaining this trend until the recent S24, which has been phasing out those curved edges. Now, the S25 series features flat sides across all its models.
Regarding ergonomics, it's unclear whether the flatter sides are really easier to grip. I often find myself conflicted, as I’ve read various reviews where I prefer flat sides and others where I like curved devices more. So, why should my opinion be taken seriously? There may be tech journalists who champion a specific design as the best, but I haven't been able to find them.
Whenever Samsung explains a design change, its designers argue that the removal or introduction of curves is an improvement over the previous year. In a 2024 interview with Vanity Fair, Jony Ive mentioned that Apple opted for rounded edges in the iPhone 6 series because they made larger phones feel less bulky, something that seems quite modest now that we see phones with even bigger screens.
My theory is that our hands become accustomed to the design of the phone we have been using for the past few years. When this changes (or a manufacturer change occurs), we have to pay more attention to how to hold it. However, over time, that difficulty tends to fade away.
If the two most influential and largest phone manufacturers have decided to go with flat sides, there are likely solid reasons behind this decision. It remains to be seen whether new reasons will emerge that justify a return to curved designs.