- The camera's prominence is a consequence of the increased size and complexity of sensors and optics.
- More cameras and megapixels do not always mean better photo quality.
- Software and computational photography are crucial factors for achieving high-quality photos on today's mobile phones.
If you've looked at the latest smartphones, you've probably wondered why the camera protrudes more and more from the back of the phone . This phenomenon, far from being a simple aesthetic choice or a design flaw, has several technical and practical reasons behind it and is a direct consequence of the evolution of photographic technology in smartphones. The obsession with achieving higher-quality photographs, approaching the performance of professional cameras, and responding to user demands has led manufacturers to make decisions that impact, for better or for worse, the design of phones.
In this article, we'll break down the reasons why modern smartphone cameras stand out , how the arrangement and size of the modules have changed, the key role of software, the true importance of the number of cameras and megapixels , and how these decisions affect both photo quality and the everyday use of the device. Get ready to discover all the key factors that have shaped this trend, combining information from various specialized sources and complementing the technical aspects with practical details that often go unnoticed.
The rise of the camera module: a matter of fashion or necessity?
Over the past few years, we've witnessed a true revolution in mobile phone design . Whereas cameras used to be little more than a small lens flush with the casing, today the modules occupy a large portion of the back, and in many cases , they protrude noticeably . This trend is neither accidental nor solely due to aesthetic choices.
The main explanation lies in the constant pursuit of improved photographic results demanded by users. To achieve sharper images, capture more light, create attractive bokeh, and remain competitive against fierce competition, manufacturers have had to adopt larger sensors and more complex optics . This inevitably leads to an increase in the thickness and surface area occupied by camera modules.
Why does the camera stand out on modern mobile phones?
One of the most relevant factors is that, while the rest of the phone's body is becoming increasingly thinner to improve design and ergonomics, the optical components that make up the camera require a minimum amount of space to function properly . Physics dictates this. Larger sensors allow more light to be captured, which improves photo quality, especially in low-light conditions. But for these sensors to function correctly, they need larger and more complex lenses . And these lenses, in turn, require a minimum focal length, making it impossible for them to fit within an ultra-thin phone without protruding.
In other words, the compromise between maintaining a slim design and offering a top-tier photographic experience means the only option is to let the camera protrude. Manufacturers like Huawei, Xiaomi, Vivo, OnePlus, Honor, and OPPO have opted for large, eye-catching modules, often circular or square, to house all the necessary lenses and sensors. Others, like Samsung, try to disguise it by integrating the cameras into the casing itself, although this has certain limitations regarding the maximum sensor size.
The myth of the number of cameras and megapixels
Alongside the outstanding camera module, another issue that raises questions is whether having more cameras necessarily translates to better results . There's a belief, fueled by marketing, that the more megapixels and lenses a phone has, the better its photos will be. However, this isn't always the case.
Currently, many mobile phones incorporate two, three, four or even five rear cameras, but each one fulfills a specific function:
- Main camera: It's usually the highest quality, with large sensors and advanced optics. It's the default and usually features artificial intelligence to automatically adjust parameters.
- Wide angle camera: It allows you to capture more of the scene thanks to its wider viewing angle. Very useful for landscapes or group photos.
- Telephoto camera: Ideal for optical zoom, bringing the image closer without losing detail or focus.
- Macro camera: Specifically for capturing small objects and details at close range, such as flowers, insects or textures.
- Secondary cameras (depth sensor, black and white, etc.): They usually support effects such as portrait mode or contrast enhancement.
The importance of the sensor and the size of the module
The crux of the matter lies in the image sensor . A larger sensor is capable of gathering more light, which is key to obtaining better photos indoors or at night and to preserving color range and detail in challenging conditions. But these sensors, along with the lenses, cannot be compressed to the extreme without sacrificing quality, and that's the limit that forces manufacturers to design modules that protrude.
For example, recent models like the Huawei Mate 50 Pro, Xiaomi 12S Ultra, Vivo X90 Pro+, OnePlus 11, Honor Magic5 Pro, and OPPO Find X6 Pro use large modules precisely to accommodate advanced sensors. Even the shape varies: some opt for a circular module, others for a square one, but they all have one thing in common: the camera protrudes because the hardware demands it.
Design vs. Functionality: What Do Users Prefer?
The evolution of mobile phones has forced a balance between aesthetics and functionality . Some demand completely flat phones, without any protrusions that could cause instability when placed on a table or hinder the use of cases. However, the market trend is clear: photographic quality reigns supreme , and most prefer to sacrifice a bit of design uniformity in exchange for being able to take better photos in any situation.
Some brands have tried to differentiate themselves, like Samsung with its Galaxy S22 Ultra, by integrating the camera directly into the chassis to conceal the module. But even in these cases, the overall thickness of the device increases compared to previous models. This is a decision influenced by engineering, user demand, and marketing.
The crucial role of software and computational photography
One of the biggest advances in mobile photography over the last decade hasn't come solely from hardware. Software and computational photography have made an impressive leap and, in many cases, make all the difference compared to other cameras.
When you take a photo with your phone, it performs thousands of operations in milliseconds : it takes multiple images with different exposures, automatically adjusts parameters, recognizes scenes, and applies advanced techniques like Smart HDR (High Dynamic Range), which enhances contrast and colors. High-end phones stand out for offering features like portrait mode , capable of precisely blurring the background to mimic the coveted "bokeh" effect of professional cameras, and managing depth of field using depth maps generated by multiple lenses or specific sensors.
Computational photography also allows you to take good photos in low light conditions by combining multiple shots to reduce noise and recover detail. And all of this happens almost without user intervention, thanks to integration with operating systems and artificial intelligence.
How much does the number of megapixels really matter?
Another big question is whether megapixels are as important as they seem . Many advertisements and technical specifications boast 48, 64, or even more than 100 megapixel sensors, but the reality is that photo quality doesn't depend solely on this number . In fact, there are phones with lower megapixel sensors that achieve better results because they optimize light, detail, and digital processing more effectively.
The real leap in quality comes from combining good hardware, large sensors, quality lenses, and intelligent software . Sometimes, manufacturers use the number of megapixels as a marketing ploy because it's easy to compare and sell, but it's not always a reliable indicator of a phone's photographic capabilities.
And what about the front cameras?
We can't forget the importance of the front-facing camera . Although it doesn't usually stand out like the rear camera for aesthetic and space reasons, it has also advanced considerably. Besides portraits and selfies, it's used for security features like facial recognition . Technologies that utilize multiple front-facing cameras or 3D sensors have not only improved the quality of selfies but have also added features like real-time background blur and 3D facial unlocking.
The influence of marketing and the pressure to innovate
We must acknowledge the role that marketing plays in design decisions. The number of lenses, megapixels, module size, and camera arrangement are all elements that help sell, because many users focus on what's visible rather than what's hidden. However, as we've seen, true innovation lies in the balance between advanced hardware and software capable of maximizing its potential.
Manufacturers, seeing that the camera has become one of the main selling points, don't hesitate to include more sensors and features to stand out from the competition, even though sometimes these extras are little more than symbolic improvements. The key is knowing how to distinguish what adds real value from what is purely a marketing ploy.
How does this design affect daily use?
The fact that the camera protrudes has practical effects in everyday use. On the one hand, it can make the phone less stable when placed on a flat surface, creating that annoying wobble. It also increases the risk of the lens getting scratched or damaged if you don't use a case. Fortunately, most users choose to protect their phones with a case, which partially mitigates this effect and protects the camera module.
In any case, the reality is that the vast majority are willing to accept this small inconvenience in exchange for enjoying higher quality photos and videos, capable of competing with many compact cameras and, in some cases, even with professional models.
The reason why the camera on mobile phones stands out is the result of a constant tug-of-war between the desire for slim, elegant designs and the need to offer the best possible photography experience. Today, the decision to let the camera stand out is no longer just a matter of aesthetics, but a logical consequence of the demand for large sensors, advanced optics, and the integration of multiple lenses that, combined with sophisticated software, allow the user to get the most out of every photo.
It might not be the most aesthetically pleasing solution for everyone, but it's undoubtedly the one that helps us capture the best memories. Share this information so other users know why the camera stands out on modern smartphones.