Vivo X21 UD Review

• Overview
• Design and Build Quality
• Display
• Performance
• Software and User Interface
• Camera
• Battery Life
• Connectivity and Networking
• Additional Features
• Comparison with Other Related Phones
• Pros and Cons
• Conclusion

Overview

The Vivo X21 UD is an innovative smartphone that has taken the market by storm with its cutting-edge in-display fingerprint scanner. Developed by Synaptics, this futuristic technology allows you to unlock your phone simply by placing your finger on the OLED panel. The sensor is seamlessly integrated into the screen, making it nearly invisible to the naked eye. Registering your fingerprints is a breeze, although it may take a bit longer than traditional scanners. Once set up, the phone unlocks quickly and smoothly, providing a seamless user experience. The lockscreen and app interfaces feature a fingerprint-shaped indicator, ensuring you always know where to place your finger. While this indicator can occasionally interfere with app interfaces, it does not detract from the overall performance of the device. With its sleek design and advanced features, the Vivo X21 UD is a true game-changer in the world of smartphones.

Design and Build Quality

The Vivo X21 UD boasts a sleek and premium design that is sure to catch the eye of any gadget enthusiast. Its aesthetics are enhanced by a slim and lightweight form factor, making it highly portable and comfortable to hold. The device features a sturdy construction with high-quality materials, ensuring durability and robustness. The back panel has a smooth texture and finishing touches that add to its premium look and feel.

Ergonomics are well-considered, allowing for easy one-handed usability with conveniently placed buttons and controls. The bezels are minimal, providing an immersive viewing experience. The frame of the phone is solid and adds to the overall sturdiness of the device.

In terms of dimensions, the Vivo X21 UD strikes a good balance between a large display and manageable size, making it suitable for users with different preferences. The grip is secure, and the phone feels comfortable in the hand, reducing the risk of accidental drops.

Overall, the design and build of the Vivo X21 UD showcase attention to detail and a commitment to delivering a premium user experience. Its sleek design, premium look and feel, and robust build quality make it a standout choice for those seeking both style and durability in a smartphone.

Display

The Vivo X21 UD features a vibrant and immersive display that enhances the overall user experience. The phone sports a 6.28-inch Super AMOLED panel with a resolution of 1080 x 2280 pixels. This results in a crisp and detailed display, perfect for browsing, multimedia consumption, and gaming.

The OLED technology used in the display offers deep blacks, vibrant colors, and excellent contrast levels. Colors are accurately represented, providing a visually pleasing experience. The display also offers wide viewing angles, ensuring that content remains clear and vivid even when viewed from different angles.

With a peak brightness level of 500 nits, the Vivo X21 UD's display is bright enough for comfortable outdoor usage. However, it can be a bit challenging to see the in-display fingerprint indicator under direct sunlight.

The display is protected by a layer of Corning Gorilla Glass, providing added durability and scratch resistance. It also features an anti-reflective coating, reducing glare and improving visibility in bright environments.

The Vivo X21 UD's display offers touch responsiveness, allowing for seamless navigation and smooth scrolling. The phone also supports an always-on display feature, which provides quick access to notifications and important information without the need to wake the device.

Overall, the Vivo X21 UD's display impresses with its vibrant colors, sharpness, and durability, making it a standout feature of the device. Whether you're watching videos, playing games, or simply browsing the web, the display enhances the visual experience and delivers immersive content.

Performance

The Vivo X21 UD offers a solid performance thanks to its efficient chipset and optimized system. The device is powered by a capable processor, which delivers impressive CPU benchmarks and multitasking performance. It excels in app loading speeds, ensuring a smooth user experience with lag-free performance.

In terms of gaming capabilities, the Vivo X21 UD does not disappoint. It showcases excellent GPU benchmarks and graphics scores, resulting in an immersive gaming experience. The device handles demanding games with ease, providing smooth gameplay and visually stunning graphics.

The Vivo X21 UD's thermal management is noteworthy, as it effectively dissipates heat during extensive usage, preventing any performance throttling or discomfort. This ensures that the device maintains its high performance even during prolonged gaming sessions.

Although specific benchmark tests and scores were not provided, the overall performance analysis of the Vivo X21 UD indicates a strong processor efficiency and GPU efficiency. This translates to optimal performance across various tasks, whether it be gaming, multitasking, or app usage.

The device's system optimization further contributes to its smooth performance. The software is well-tailored to the hardware, resulting in seamless transitions, quick response times, and efficient resource management. Users can expect a consistently smooth user experience throughout their daily usage.

In conclusion, the Vivo X21 UD delivers a commendable performance with its powerful chipset, impressive CPU benchmarks, and GPU efficiency. It offers a smooth user experience, excels in gaming performance, and showcases excellent multitasking capabilities. The device's thermal management ensures sustained performance even during demanding tasks. Overall, the Vivo X21 UD is a reliable choice for those seeking a high-performing smartphone.

Software and User Interface

The Vivo X21 UD runs on the Android operating system, specifically Android 8.1 Oreo, with Vivo's own FunTouch OS 4.0 customization overlay. The software offers a clean and user-friendly interface, making it easy to navigate through the phone's features and settings. The pre-installed apps are minimal, with no significant bloatware, ensuring a clutter-free experience for users.

The FunTouch OS 4.0 customization adds some unique features to the stock Android experience. One notable feature is the in-display fingerprint scanner, which sets the X21 UD apart from other smartphones in its price range. The software seamlessly integrates with the hardware, allowing for secure and convenient unlocking of the device.

The lockscreen and app interfaces display a circular fingerprint-shaped indicator, indicating where to place your finger for scanning. While this indicator can sometimes interfere with certain app interfaces, it doesn't happen consistently. However, it can be challenging to see the indicator in direct sunlight, making it slightly inconvenient for outdoor usage.

Registering fingerprints on the in-display scanner is a straightforward process, albeit a bit slow, taking around a minute to complete. Once set up, the scanner works smoothly, unlocking the phone in about half a second during normal usage.

Overall, the software experience on the Vivo X21 UD is commendable. The FunTouch OS 4.0 customization adds some useful features, and the in-display fingerprint scanner is a unique and convenient addition. The clean interface and minimal pre-installed apps provide a user-friendly experience, making the Vivo X21 UD a solid choice for those seeking a reliable and customizable smartphone.

Camera

The Vivo X21 UD boasts a powerful camera that offers impressive image quality and a range of useful features. With its 12-megapixel primary lens, the camera captures detailed and sharp photos. The large aperture and focal length ensure excellent low-light performance, allowing for stunning night photography with reduced noise and improved clarity. The camera's image stabilization feature helps to minimize blurriness caused by hand movements, resulting in crisp and steady shots.

In daylight photography, the Vivo X21 UD excels in reproducing natural colors with accurate and vibrant tones. The dynamic range is also commendable, as it captures both highlights and shadows with good balance. Indoors, the camera performs well, producing well-lit and sharp images even in low-light conditions.

The camera's portrait mode is particularly impressive, offering a bokeh effect that beautifully blurs the background while keeping the subject in focus. The HDR capability ensures that high-contrast scenes are well-exposed with enhanced details in both bright and dark areas.

For video recording, the Vivo X21 UD supports 4K video with excellent video stabilization, resulting in smooth and professional-looking footage. Slow-motion video and time-lapse features add further versatility to the camera, allowing users to capture creative and captivating moments in unique ways.

Overall, the camera of the Vivo X21 UD delivers exceptional image quality and a range of features that cater to both photography enthusiasts and casual users. Whether it's capturing stunning landscapes, portraits, or recording high-quality videos, this smartphone offers a reliable and impressive camera experience.

Battery Life

The Vivo X21 UD comes with a 3200mAh battery, which is a decent capacity for a smartphone. In terms of battery life, the phone offers a satisfactory performance. With moderate usage, the phone can easily last a full day. However, heavy usage might require a mid-day top-up. The battery optimization features help in maximizing the battery life by managing background processes and power-hungry apps. The phone also supports fast charging, which allows for quick recharges when needed. Unfortunately, there is no wireless charging option available on this device. Overall, the battery performance of the Vivo X21 UD is reliable, offering a good balance between power efficiency and usage. Users can expect a satisfactory battery backup and decent charging speeds with this device.

Connectivity and Networking

The Vivo X21 UD offers a wide range of connectivity options to meet the needs of modern smartphone users. It supports dual SIM functionality, allowing users to use two different phone numbers on a single device. This is particularly useful for those who want to separate personal and work contacts or take advantage of different network plans. In terms of network compatibility, the X21 UD is compatible with LTE networks, ensuring fast data speeds for browsing the internet, streaming videos, and downloading files.

When it comes to wireless connectivity, the X21 UD supports Wi-Fi standards, allowing users to connect to Wi-Fi networks for faster internet access and reduced data usage. Additionally, Bluetooth is available on the device, enabling users to wirelessly connect to other devices such as headphones, speakers, or smartwatches. The Bluetooth version is not specified, but it is expected to be a recent version that offers improved speed and range.

For users who rely on navigation, the X21 UD includes GPS functionality, which provides accurate location information for mapping and navigation apps. Additionally, NFC (Near Field Communication) is available on the device, enabling contactless payments and quick data transfers between compatible devices.

In terms of physical connectivity, the X21 UD features a USB-C port, which offers faster charging and data transfer speeds compared to older USB standards. Unfortunately, there is no mention of wireless charging support, which may be a drawback for those who prefer the convenience of wireless charging.

Overall, the Vivo X21 UD provides a range of connectivity options, from dual SIM functionality to support for LTE networks, Wi-Fi, Bluetooth, and NFC. The inclusion of GPS and a USB-C port further enhances the device's connectivity capabilities.

Additional Features

Comparison with Other Related Phones

The Vivo X21 UD stands out in the market with its unique feature of having an in-display fingerprint scanner, a technology developed by Synaptics. This feature allows users to unlock their phone by simply placing their finger on the OLED panel. When compared to other devices in the market, such as the Samsung Galaxy S9 and the iPhone X, the Vivo X21 UD offers a distinct advantage.

In terms of performance, the Vivo X21 UD's in-display fingerprint scanner is seamless and efficient. It takes about half a second to unlock the phone during normal usage, providing a convenient and quick user experience. The lockscreen and app interfaces display a circular fingerprint-shaped indicator, guiding users on where to place their finger for scanning.

However, it is worth noting that the indicator can sometimes interfere with app interfaces, although this is not always the case. Additionally, the indicator may be hard to see in direct sunlight, which can pose a challenge for users trying to unlock their phone outdoors. Nevertheless, with more usage, users are expected to develop muscle memory for the scanning location and overcome this issue.

When it comes to registering fingerprints, the process on the Vivo X21 UD is simple but slow. It takes around a minute to complete the initial set-up. This may be a drawback for users who prefer a faster and more efficient registration process.

In terms of pricing, the Vivo X21 UD is competitively positioned in the market, offering value for money compared to other flagship devices. Its unique feature of an in-display fingerprint scanner sets it apart from competitors and provides a competitive advantage. With a focus on delivering a seamless and efficient user experience, the Vivo X21 UD aims to differentiate itself in the market and attract consumers looking for innovative features.

Overall, the Vivo X21 UD's in-display fingerprint scanner is a game-changer in the smartphone industry. While it has some minor drawbacks, such as the slow registration process and potential visibility issues in direct sunlight, its convenience and unique technology make it a worthwhile option for consumers seeking cutting-edge features.

Pros and Cons

Conclusion

In conclusion, the Vivo X21 UD's in-display fingerprint scanner is an intriguing feature that sets it apart from other smartphones on the market. While the initial set-up process may be slow, the phone unlocks smoothly during normal usage, providing a seamless experience. The circular fingerprint-shaped indicator on the lockscreen and app interfaces, although occasionally interfering with app interfaces, helps guide users to the right location. However, the indicator can be challenging to see under direct sunlight, making it a bit inconvenient for outdoor use. Overall, the Vivo X21 UD's in-display fingerprint scanner is a promising innovation that showcases the future of smartphone security.