In today’s smartphone market, nearly every flagship device boasts an edge-to-edge display. Manufacturers proudly claim screen-to-body ratios that inch closer and closer to 100 percent, offering immersive visuals and sleek modern aesthetics. However, this journey toward bezel-less design did not happen overnight. It is the result of years of technological innovation, shifting consumer demands, and clever engineering solutions that have gradually reduced the frame around our screens.
Phone bezels—the borders surrounding a device’s display—have played an essential role since the earliest mobile phones. They housed buttons, sensors, speakers, microphones, and internal structural support. But as smartphones continued to evolve, bezels became a focal point in the design race. Brands competing for the most visually striking device began shrinking bezels more aggressively, ultimately pushing the industry toward the nearly full-screen displays we enjoy today.
This article explores the fascinating evolution of phone bezels, from chunky early designs to the sleek edge-to-edge look of modern devices. We will break down the milestones, challenges, and innovations that shaped this transformation, and examine how close we truly are to achieving a 100 percent screen-to-body ratio.
The Early Years of Thick, Functional Bezels
In the early days of mobile phones, bezels were large, pronounced, and entirely functional. Devices such as the Nokia 3310 or Motorola Razr were designed with practicality, durability, and ergonomics in mind. Screens were small, and thick borders were necessary to provide structural integrity, protect the display from damage ,and accommodate physical keys.
Even when smartphones first emerged, bezels remained an essential part of the user experience. Early touchscreen phones like the original iPhone and HTC Dream featured thick bezels on all sides. These bezels helped users grip the phone without accidentally touching the screen and prevented damage from drops or impact.
Moreover, early display technology required bezel areas to house hardware components such as resistive touch layers, sensors and larger circuit boards. Without the bezel, these devices simply could not function. As a result, early smartphone design prioritized reliable performance over maximizing screen space.
The Shift Toward Slimmer, More Modern Designs
As touchscreen technology improved and capacitive displays replaced resistive ones, manufacturers gained more flexibility in reducing bezel size. Consumers began demanding larger screens for browsing, gaming and media consumption. This marked the beginning of the bezel reduction era.
Smartphone brands found ways to shift essential components to new positions within the device. Sensors became smaller, home buttons shrank or disappeared entirely and internal circuitry became more compact. This allowed companies to trim the top and bottom bezels significantly.
Samsung, LG and Apple spearheaded this shift with devices that gradually shaved off millimeters from their bezels. The trend was not just aesthetic; it offered more screen real estate without increasing the overall size of the phone—a major win for users.
Manufacturers also began experimenting with curved displays, allowing screens to wrap around the edges of devices and create the illusion of even thinner bezels. Samsung’s Galaxy Edge series was one of the earliest mainstream examples, introducing a striking curved display that visually minimized the side bezels even though a small frame still existed beneath the glass.
The Notch Revolution: A Compromise for More Screen
When bezels became too slim to house essential components like front-facing cameras, ambient sensors, and earpieces, manufacturers needed a creative solution. Enter the notch—a cutout at the top of the display that allowed companies to shrink bezels further without sacrificing key hardware.
The notch era began gaining traction with devices like the Essential Phone and the iPhone X. Apple’s bold decision to remove the home button and introduce Face ID required a new approach. The now-iconic “notch” housed complex sensors and a camera system, enabling a nearly bezel-less design.
While divisive, the notch became a defining trend. Some users disliked it, but many appreciated the larger display area it made possible. Competitors soon followed with their own variations, including wide notches, teardrop notches, and even unique designs such as the dual-notch approach in some LG models.
The notch may have been polarizing, but it undeniably accelerated the transition toward more expansive displays. It was a compromise that allowed smartphones to push boundaries while engineers worked on the next stage of bezel-less technology.
Hole-Punch Cameras and the Rise of the Modern Full-Screen Look
To further minimize intrusion into the display, manufacturers explored smaller and less disruptive alternatives to the notch. This innovation led to the emergence of the hole-punch camera design.
Instead of a large cutout at the top of the screen, a tiny circular opening allowed the front-facing camera to sit within the display itself. Samsung popularized the punch-hole camera with its Galaxy S series, and other brands quickly adopted the design.
The hole-punch approach offered several advantages. It maximized screen area, reduced visual clutter, and eliminated the need for a protruding notch. Combined with ever-thinner bezels on the sides and bottom, smartphones began achieving screen-to-body ratios above 90 percent.
For many users, this design represented the perfect balance between usability and immersion. Hole-punch cameras made displays more cinematic while preserving essential functionality.
Pop-Up and Motorized Cameras: Radical Steps Toward True Full Screens
Some manufacturers sought to eliminate camera cutouts entirely. To achieve this, brands like OnePlus, Xiaomi and Vivo experimented with pop-up camera mechanisms.
In these designs, the front-facing camera was hidden inside the phone and only emerged when needed. This allowed the display to extend across the entire front surface without interruptions.
Motorized camera systems were impressive engineering feats, offering true full-screen experiences. However, they also introduced potential drawbacks, including susceptibility to dust, long-term mechanical wear and slower selfie capture times.
While pop-up cameras were short-lived as a mainstream design trend, they demonstrated the industry’s determination to push bezel elimination to new extremes. They also paved the way for more robust solutions.
The Under-Display Camera: The Next Frontier
One of the most promising innovations in bezel-less technology is the under-display camera (UDC). This technology hides the front camera beneath the display, allowing it to take photos through the screen itself.
The first generation of UDC technology appeared in devices such as the ZTE Axon 20 and Samsung Galaxy Z Fold series. While early results showed limitations—particularly in image quality due to light distortion—UDC tech continues improving each year.
As manufacturers develop more transparent display materials and advanced light-transmission algorithms, under-display cameras are likely to become a mainstream feature. This innovation could finally eliminate the need for notches, hole-punch openings and motorized mechanisms, bringing us even closer to a true full-screen design.
Bezel-Less Challenges: Structural Integrity and Durability
Even though users want bezel-less displays, engineers face several challenges in achieving them. One of the biggest is structural integrity. Bezels provide support and shock absorption; without them, devices become more fragile.
Removing bezels increases the risk of cracked screens, especially if the display extends to the very edge of the device. Manufacturers compensate with reinforced glass, metal frames and protective materials, but there are still limits to how durable an ultra-thin bezel design can be.
Another challenge is accidental touch rejection. With so little frame around the screen, smartphones must intelligently distinguish between intentional and unintentional touch inputs. Advanced palm-rejection software and improved algorithms help address this, but the issue remains part of the bezel-less journey.
The Role of Foldable Phones in Bezel Evolution
Foldable phones have introduced a new dimension to the bezel conversation. Because foldable screens require flexible materials and complex mechanical structures, bezels play a different role than in traditional smartphones.
Early foldables, such as the first-generation Galaxy Fold, featured thicker bezels to protect the flexible display. Over time, improvements in hinge design, ultra-thin glass and protective coatings have allowed foldable bezels to shrink as well.
While foldables are not yet fully bezel-less, their evolution mirrors the overall industry trend: thinner borders, more immersive visuals and innovative approaches to screen design.
How Close Are We to a 100% Screen-to-Body Ratio?
Today’s high-end smartphones push well into the 93–95 percent screen-to-body ratio range. These numbers are impressive, but hitting a true 100 percent remains extremely challenging.
Even with under-display cameras, there are still essential components—such as speakers, sensors and antennas—that need placement. Some companies experiment with vibrating display panels that double as speakers, while others integrate sensors directly beneath the display.
We may eventually reach a point where all components are hidden beneath the screen, but perfection will require technological breakthroughs in several areas, including optics, materials and thermal management.
Nonetheless, the progress made so far is astonishing. Just a decade ago, bezel-less phones seemed futuristic. Today, they are the standard.
What the Future Holds
The future of bezel-less design is bright and filled with potential. As display technology advances, we may see:
Smarter under-display cameras with near-flagship photography quality.
Invisible sensors fully integrated into the screen layers.
Improved structural materials that make edge-to-edge displays more durable.
New form factors, such as rollable phones, that redefine what a bezel even means.
Manufacturers will continue pushing boundaries as users demand more immersive experiences, and the competition for full-screen dominance intensifies.
Conclusion
The evolution of phone bezels is a story of relentless innovation. From thick, practical borders to nearly invisible frames, each stage reflects the industry’s desire to balance aesthetics, functionality and cutting-edge technology.
As we move closer to the dream of true full-screen smartphones, it is clear that bezels—once an unavoidable design limitation—are becoming relics of the past. The journey has been long, filled with creativity and bold experimentation, but the destination is now within sight: a future where the entire front of your phone is pure, uninterrupted screen.
