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iPhone X: A Comprehensive Review of its Perfermance

iPhone X remains a landmark device in the history of smartphones. Its design, performance, and feat…
iphone x

The iPhone X, introduced by Apple in 2017, marked a significant milestone in the history of smartphones. Celebrating the 10th anniversary of the iPhone, Apple redefined its flagship device with groundbreaking features and a bold new design. The iPhone X was more than just another smartphone; it was a glimpse into the future of mobile technology, setting new standards for design, performance, and user experience.

Design and Build Quality

Aesthetic Features

The iPhone X brought a dramatic shift in design philosophy with its edge-to-edge Super Retina display, removing the home button for the first time in iPhone history. This design choice resulted in a sleek and modern look, characterized by smooth curves and an almost bezel-less screen. The front and back were made of durable glass, which not only added to its premium feel but also enabled wireless charging.

Materials Used

Apple used aerospace-grade stainless steel for the frame, which provided exceptional durability and resistance to corrosion. The glass used on both the front and back was reinforced to withstand impacts better than previous models, enhancing its overall resilience.


Despite its glass construction, the iPhone X proved to be quite durable. It was subjected to various drop tests and emerged with minimal damage, thanks to the reinforced glass and sturdy stainless steel frame. Additionally, it boasted an IP67 rating for dust and water resistance, meaning it could survive being submerged in water up to 1 meter for 30 minutes.


Super Retina Display Technology

The iPhone X featured a 5.8-inch Super Retina OLED display, which offered stunning color accuracy and contrast. This display technology provided deeper blacks and more vibrant colors, making images and videos look more lifelike.

HDR and True Tone Features

High Dynamic Range (HDR) support enhanced the visual experience by offering a wider range of colors and improved contrast, especially when viewing HDR content. True Tone technology adjusted the display’s white balance based on ambient lighting, reducing eye strain and making the screen easier to read in various lighting conditions.

Screen Resolution and Quality

With a resolution of 2436 x 1125 pixels and a pixel density of 458 pixels per inch (PPI), the iPhone X’s display was one of the sharpest on the market. This high resolution ensured that text and images appeared crisp and clear, providing an immersive viewing experience.


A11 Bionic Chip

At the heart of the iPhone X was the A11 Bionic chip, a six-core processor that delivered outstanding performance. This chip was designed to handle demanding tasks with ease, from gaming and augmented reality to everyday multitasking.

Neural Engine

The A11 Bionic also included a Neural Engine, specifically designed to accelerate machine learning tasks. This component played a crucial role in features like Face ID and Animoji, enabling real-time processing of facial recognition and animation.

Benchmark Comparisons

Benchmark tests consistently placed the iPhone X at the top of the performance charts. It outperformed many of its contemporaries, including flagship devices from Samsung and Google, making it one of the fastest smartphones available at the time.

Camera System

Dual Rear Cameras

The iPhone X featured a dual-camera system on the back, with a 12-megapixel wide-angle lens and a 12-megapixel telephoto lens. This setup allowed for 2x optical zoom and up to 10x digital zoom, providing versatility for different shooting scenarios.

Portrait Mode and Lighting Effects

Portrait Mode was enhanced with new lighting effects, enabling users to create professional-looking portraits with dramatic lighting. These effects simulated studio lighting conditions, adding depth and dimension to photos.

4K Video Recording

The iPhone X was capable of recording 4K video at 60 frames per second, offering high-quality video capture with smooth motion and vivid detail. It also supported slow-motion video at 1080p, allowing for creative and cinematic effects.

Face ID

Technology Behind Face ID

Face ID used advanced TrueDepth camera technology to map and recognize the user’s face. It projected over 30,000 invisible dots onto the face to create a detailed 3D map, ensuring accurate and secure authentication.

Security Features

Face ID was designed with security in mind. The facial data was stored securely in the device’s Secure Enclave, a dedicated section of the A11 Bionic chip that protected sensitive information. This made Face ID highly resistant to spoofing attempts using photos or masks.

User Experience

Users found Face ID to be fast and reliable, even in low light conditions or when wearing glasses. The convenience of unlocking the phone with a glance significantly improved the overall user experience.

Battery Life

Battery Specifications

The iPhone X was equipped with a 2716mAh battery, which, combined with the energy-efficient A11 Bionic chip, provided all-day battery life under typical usage conditions.

Real-World Usage

In real-world usage, the iPhone X’s battery life met or exceeded expectations. Users reported being able to get through a full day of use without needing to recharge, even with heavy app usage and media consumption.

Tips for Optimizing Battery Life

To maximize battery life, users could enable Low Power Mode, reduce screen brightness, and manage background app activity. Regular software updates also helped optimize battery performance.

User Experience

Interface and Usability

The iPhone X introduced a new way of interacting with the device, replacing the home button with intuitive gestures. This change streamlined navigation and made the user experience more fluid.

iOS Features Specific to iPhone X

iOS 11 brought features tailored to the iPhone X, such as swipe gestures for multitasking and an updated Control Center. These enhancements made full use of the device’s edge-to-edge display.

Feedback from Users

User feedback for the iPhone X was overwhelmingly positive. Many praised its design, performance, and innovative features, though some initially found the lack of a home button challenging to adapt to.

Comparative Analysis

iPhone X vs. iPhone XS

Comparing the iPhone X to its successor, the iPhone XS, reveals incremental improvements in processing power, camera capabilities, and display technology. Differences in price and specific features influence consumer choice.

iPhone X vs. iPhone 11 and Later Models

The introduction of newer iPhone models like the iPhone 11 series brought enhanced camera systems, longer battery life, and improved performance. Each model caters to different user segments based on their priorities and budget.

iPhone X vs. Other Flagship Smartphones

Against flagship smartphones from competitors, the iPhone X’s strengths in design, ecosystem integration, and software support distinguish it. Factors such as operating system preference and ecosystem compatibility influence purchasing decisions.


In conclusion, the iPhone X remains a landmark device in the history of smartphones. Its design, performance, and features continue to impress, even several years after its release. Whether you’re a tech enthusiast or a casual user, the iPhone X offers a premium experience that stands the test of time.


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