Over the past few years, the presence of Chinese mobile phones in the international market has grown exponentially. They have gone from being devices of dubious quality to becoming smartphones with a remarkable reputation, capable of competing with major brands by offering a price-to-performance ratio that is unbeatable for many users. A clear example of this trend is the Xiaomi Redmi 4X : a smartphone that has established itself as one of the most recommended models in the lower mid-range, standing out for its balance of features, design, battery life, and price.
The Xiaomi Redmi 4X stands out as one of the most highly regarded Android smartphones in the mid-range, ideal for those seeking efficient performance , durability, and comprehensive features without a significant investment. This article provides all the relevant and up-to-date information on the Xiaomi Redmi 4X's technical specifications , price , design , performance , battery , cameras , software , and user experience , including in-depth analysis and details not found elsewhere, and compares its advantages against other devices in the same price range.
Full Specs Sheet: Xiaomi Redmi 4X Specifications and Features
Before delving into each section, it's essential to have a general understanding of the Xiaomi Redmi 4X's features . Its specifications position it as a low-to-mid-range device with aspirations of being a durable and reliable everyday phone:
- Screen: IPS LCD, 5 inches, HD resolution 1280 x 720 pixels (294 ppi), 2.5D curved glass
- Processor: Qualcomm Snapdragon 435 Octa-core (8 cores) at 1.4 GHz
- GPU: Adreno 505
- RAM: 3 GB
- Internal storage: 32 GB (expandable with microSD up to 128 GB in international versions and up to 256 GB in others, depending on firmware and hybrid slot availability)
- Operating System: MIUI 8 based on Android 6.0 Marshmallow
- Cameras: 13 MP rear camera, f/2.0 aperture, PDAF, LED flash, Full HD 1080p video recording; 5 MP front camera, f/2.2 aperture, Full HD recording, beauty mode, and HDR
- Dual SIM (Nano SIM + Micro SIM or MicroSD)
- Battery: 4100 mAh Li-Po, non-removable
- Weight: 150 grams
- Dimensions: 139.2 x 70 x 8.7 mm
- Connectivity: 4G LTE (band 800 and others), 3G, 2G, Wi-Fi 802.11 b/g/n, Bluetooth 4.2, GPS, A-GPS, GLONASS, Micro USB 2.0 port, FM radio, infrared emitter, 3.5 mm audio jack connector
- Fingerprint sensor In the back
- Available Colours: Black, gold, pink and grey, depending on the market
Design and finishes: ergonomics, materials and colors
The Xiaomi Redmi 4X's design follows the brand's signature aesthetic. It features a fully metallic unibody with curved edges and rounded corners, providing both a premium feel and an elegant, minimalist look. The 2.5D front glass softens the screen's edges, facilitating finger gliding and improving ergonomics, making the device fit perfectly in the palm of your hand.
Thanks to its compact size and light weight (150 grams), it's a comfortable phone for everyday use, even during long sessions or when carried in your pocket. The device is available in several color options: black (ideal for those who prefer a more understated look), gold (with an elegant and distinguished touch), pink (designed for those seeking a more youthful and colorful style), and, in some markets, gray . This variety allows each user to choose the finish that best suits their personal style.
The button and port layout is intuitive and functional . On the right edge are the physical power and volume buttons, which offer a reliable and pleasant feel. On the left is the hybrid tray that allows you to use two SIM cards or one SIM card and a microSD card. At the bottom, Xiaomi has placed the Micro USB port , while at the top you'll find the 3.5 mm headphone jack , the noise-canceling microphone, and the infrared emitter , ideal for using the phone as a remote control.
The rear-mounted fingerprint sensor , centered below the camera, is a standout feature, making it easy to access with your index finger. This sensor offers fairly accurate and fast identification for a device in this price range.
Display: Visual Experience, Technology, and Usability
The Xiaomi Redmi 4X features a 5-inch IPS LCD screen with HD resolution (1280 x 720 pixels), resulting in a pixel density of 294 pixels per inch . While it doesn't reach the Full HD resolution of more advanced models, this screen is sufficient for a crisp visual experience and balanced colors in everyday tasks such as browsing, social media, messaging, video playback, or casual gaming.
IPS technology provides wide viewing angles and accurate color reproduction, allowing for comfortable viewing from various positions. Brightness is more than adequate for indoor use, and while it may struggle somewhat outdoors in direct sunlight (common in lower mid-range models), adjusting the brightness to maximum allows for clear viewing of content, except in situations with very intense glare.
The 2.5D curved glass protects the screen and offers a more seamless look between the frame and the display, enhancing the user experience. The panel responds precisely and fluidly to touch, with minimal lag in common gestures like scrolling or zooming, although occasionally there may be a slight delay in complex multi-touch gestures.
In terms of usability, the 5-inch screen is perfect for those looking for a compact device that can be easily handled with one hand, without sacrificing enough usable surface area to enjoy videos or multimedia content.
Power and performance: processor, memory, and daily use
The heart of the Xiaomi Redmi 4X is the Qualcomm Snapdragon 435 processor , an octa-core Cortex-A53 SoC clocked at 1.4 GHz , paired with an Adreno 505 GPU . This combination, along with 3 GB of RAM and 32 GB of internal storage in the top-of-the-line version (there are 2 GB RAM and 16 GB storage variants for international markets), provides optimal performance for most everyday tasks.
The Redmi 4X handles common apps like WhatsApp, email , web browsing, video streaming, and social media smoothly . Thanks to MIUI system optimization and balanced processor resource usage, the user experience is also responsive during basic multitasking.
For casual games and graphically demanding applications, the Adreno 505 performs adequately, although in titles with high graphical requirements, a reduction in frame rate or some loading lag may be noticeable. The phone isn't designed for extreme gaming, but it more than holds its own in light and medium-intensity games.
Its 32GB of internal storage is sufficient for installing numerous applications, saving a good number of photos and videos, and storing files without worry. Furthermore, the ability to expand the memory with a microSD card up to 128GB (or 256GB in some editions depending on the ROM and hybrid slot) allows for easy expansion of its capacity, although you have to choose between the second SIM or the SD card due to the hybrid slot.
Battery and autonomy: one of its strongest points
One of the most appreciated aspects of the Xiaomi Redmi 4X is undoubtedly its battery life . It incorporates a generous 4100 mAh non-removable Li-Po battery, surpassing many devices in its price and size range.
Thanks to the efficiency of the Snapdragon 435 and the HD resolution of its screen, the Redmi 4X easily achieves two days of use for average users: web browsing, calls, messaging, music playback, and some multimedia. With heavy use, the battery typically lasts a full day without needing to be recharged, reaching between 8 and 10 hours of active screen time at medium brightness (approximately 35%), according to tests and comparative analyses.
MIUI's power management helps optimize consumption, offering power-saving modes and automatic restrictions for background apps. Although the Redmi 4X doesn't have fast charging technology , its battery fully recharges in just under three hours. This minor drawback is offset by its exceptional battery life, crucial for those looking for a phone that can withstand long days away from home or while traveling.
In battery life benchmarks like the PCMark test, the Xiaomi Redmi 4X achieves over 11 hours of continuous screen time before dropping to 20% battery, reinforcing its reputation as a rugged phone for long sessions.
Cameras: Photographic performance, modes and video recording
The photographic section of the Redmi 4X performs satisfactorily for a mid-range mobile:
- Main camera: 13 MP sensor, f/2.0 aperture, phase detection autofocus (PDAF), LED flash, HDR, FullHD 1080p video recording at 30 fps
- Frontal camera: 5 MP sensor, f/2.2 aperture, beauty mode, 1080p recording, face and smile detection
During the day and in good lighting conditions , the Redmi 4X takes sharp photos with accurate color reproduction and a good dynamic range, ideal for capturing landscapes and portraits for social media. The PDAF autofocus responds quickly, allowing for agile captures even with HDR mode activated, which noticeably improves scenes with high contrast between light and shadow.
Indoors and at night , the photo quality is competitive within its segment, although some noise and loss of detail are noticeable in low-light areas, which is common in mid-range phones. The LED flash helps mitigate these shortcomings, but professional results shouldn't be expected in night photography.
For selfies and video calls , the 5MP front camera with an f/2.2 aperture performs well, offering good detail in faces and the option to activate beauty mode. Both cameras can record video in FullHD, more than enough for sharing content on social media and messaging apps.
The camera interface , customized by MIUI, is very simple and intuitive. It offers direct access to basic functions such as HDR, flash, filters, timer, manual mode (with ISO and white balance adjustments), panorama mode, and other useful modes like beauty mode and gesture shooting. Focusing and switching between cameras is fast, with no perceptible lag, ensuring a positive user experience even for those unfamiliar with Xiaomi devices.
Connectivity: dual SIM, mobile networks and extras
The Xiaomi Redmi 4X is designed for international and flexible use thanks to its compatibility with 2G, 3G, and 4G networks (including the 800 MHz band, relevant for markets like Europe). It's a dual SIM phone with a hybrid slot, allowing you to use two mobile lines or one SIM and a microSD card to expand storage.
Connectivity options include:
- 802.11 Wi-Fi b / g / n for fast and stable navigation
- Bluetooth 4.2 for connecting external devices (headphones, wearables, etc.)
- GPS, A-GPS and GLONASS for fast and precise localization
- FM radio to listen to stations without an internet connection
- Infrared emitter to use your mobile phone as a universal remote control
- Micro USB 2.0 port for charging and data transfer
- 3,5mm headphone jack
The fingerprint sensor enhances security and allows for quick and accurate unlocking of the device and compatible apps. It lacks an NFC chip for mobile payments, although its connectivity options are quite comprehensive for a mid-range device.
Software: MIUI optimized on Android and exclusive features
The Xiaomi Redmi 4X runs MIUI 8 , based on Android 6.0 Marshmallow . This custom interface is highly regarded by users worldwide for its fluidity, stability, and additional features compared to stock Android. MIUI stands out for its polished visuals, advanced notifications, and numerous tools.
Exclusive MIUI features and functions on the Redmi 4X:
- second space: creates a safe and secure environment, separate from your main one, ideal for separating work from personal life or protecting private data
- Kids mode: Allows you to activate only certain applications to prevent accidental changes by children
- Simplified mode: interface with large icons and enlarged text, especially useful for older people
- One hand mode: reduces the usable screen space to 4 or even 3.5 inches, making it easier to use with one hand
- Advanced customization: Visual themes, fonts, icons, app lock, parental control, advanced permission management, and MIUI cloud access
- Smart energy saving and aggressive management of background apps to improve autonomy
MIUI does not include the traditional app drawer as standard , and all apps are distributed across the home screens. This may require a short adjustment period for those coming from pure Android, but with MIUI's organizational tools, it becomes intuitive in the medium term.
The system is stable and responds smoothly when navigating menus, opening apps, and switching tasks. Xiaomi continues to update its MIUI layer on many models, although the Redmi 4X comes with the factory MIUI 8 Global version, optimized for international use and with OTA updates according to the brand's policy and the installed ROM.
User experience: real-life use, strengths and differentiating details
What those who have tried the Xiaomi Redmi 4X value most is its overall balance : it's not the most powerful phone, nor the most eye-catching at first glance, but its usability, battery life and robustness make it a hard option to beat for less than 150 euros.
Daily use is very comfortable thanks to its size and ergonomics. The fingerprint sensor works perfectly; access to the FM radio and infrared emitter are useful and uncommon additions in its segment. The build quality and finish give it a premium feel, far superior to other phones in the same price range that opt for flimsy plastics or frames.
Battery life is the key consideration for users who require a reliable device for everyday use or for those who travel frequently and cannot rely on external chargers.
The Redmi 4X is also an excellent choice as a first smartphone for teenagers or seniors thanks to its simplified mode, parental control options, and dual SIM option, which makes managing personal and professional numbers easier.
Comparison with other smartphones in the segment and performance test
In the Redmi 4X's price range, it competes with models from other brands, such as the Vernee Thor, Bluboo Dual, Elephone, and lower-end models from traditional brands. However, there are a few elements that stand out that make it stand out:
- Upper battery: Compared to devices that are around 2500-3000 mAh, the Redmi 4X offers more real autonomy
- Metal construction, when many of its competitors' phones in this price range use plastics
- MIUI, one of the favorite Android customization layers for its extra features and robustness
- Fingerprint sensor and infrared emitter as added features uncommon for this price
- Multi-band support and global optimization, which facilitates connectivity in different countries
In synthetic tests like AnTuTu and Geekbench, the Redmi 4X ranks in the upper average of its segment, achieving between 42.000 and 45.000 points in AnTuTu and Geekbench Single/Multi scores similar to other models with Snapdragon 430/435. While it doesn't reach the performance of the high-end range, it's more than enough for average use and outperforms many entry-level models.
Price, availability and where to buy the Xiaomi Redmi 4X
The Xiaomi Redmi 4X's biggest draw is its price. Depending on the retailer and availability, the 3GB RAM and 32GB storage version can be found for just over €110 , putting it below many direct competitors with similar specifications. Promotions and special offers are also frequently available at well-known online retailers.
For those who choose to buy online, it's advisable to opt for reputable distributors and stores that offer the Official Global ROM and a valid warranty. Some stores offer fast shipping from Spain, free shipping, and after-sales support, which adds peace of mind to the buying experience.
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Whether as a primary phone, a phone for teenagers, a work device, or a backup, the Xiaomi Redmi 4X is one of the most highly recommended options for those looking for an affordable, efficient, and durable phone in the lower mid-range. Furthermore, unlike other Chinese phones, the Redmi 4X is readily available in global versions that include all languages and guaranteed access to Google Play and Google services.
The Xiaomi Redmi 4X has established itself as one of the strongest contenders in the lower mid-range Android phone market. Its outstanding battery life , metal design, robust MIUI interface, everyday camera quality, and competitive price make this device a solid, well-rounded, and highly recommended option for those seeking functionality, reliability, and long battery life. If you're looking for a versatile, comfortable phone with a good screen, extended battery life, and features that can handle demanding daily use, the Xiaomi Redmi 4X is a hard-to-beat contender at this price point.