OPPO A91

amazon OPPO A91 reviews

Modern design

With less battery capacity on OPPO A9 (predecessor), OPPO A91 has reduced the weight to only 127g. While the body size of the A91 is 160.2mmx73.3mmx7.9mm, respectively, 1.2mm thinner than the A9.

Thus, OPPO A91 continues to inherit the design sophistication of A9. Besides, the device still ensures a good grip when holding, despite possessing ideal thinness compared to smartphones on the market today.

The back of OPPO A91 is finished from glass imitation plastic, an option suitable for more than $280. This back also uses the same color-changing effect as many mid-range smartphones today, quite beautiful but not impressive enough.

The front of OPPO A91 is a minimalistic notch-shaped screen that looks quite fit. In addition, many applications and games now have solutions for this type of screen optimization. Therefore, the notch will not cause much trouble to affect the user’s daily experience. The commendable point is that OPPO A91 supports super-sensitive fingerprint scanning technology 3.0 under the screen, providing very fast unlocking capabilities.

The screen of OPPO A91 uses a 6.4-inch AMOLED panel, Full HD + (1080 x 2400 pixels) with an aspect ratio of 20: 9 for a sharp display. In addition, the phone is also equipped with eye protection mode with DC dimming 2.0 technology.

Powerful performance

OPPO A91 is powered by the octa-core 12nm Helio P70 processor (the current P-series flagship chip from MediaTek), which combines 8G + 128G memory. Since today’s mobile games are almost impossible, bringing the same performance on high-end smartphones is difficult for OPPO A91.

Not stopping there, the device also has two built-in game optimization tools, HyperBoost 2.0 Plus and GameBoost 2.0. Users can feel significant improvements in touch response speed, network stability, and game frame rate when using. At this point, the performance of OPPO A91 is great compared to the price of more than $280.

OPPO A91 owns a diverse Camera system

OPPO A91 is one of the few mid-range models with a cluster of 4 sensors up to 48MP. With the support of HDR technology, OPPO A91 can fully capture night photos with high resolution, harmonious light, and pretty good details. The phone’s four cameras have the following parameters, respectively:

– 48MP main sensor (combining 4 pixels into one large pixel, 5x zoom).

– 8MP ultra-wide-angle sensor with 119-degree viewing angle.

– 2MP macro sensor (take close-ups with high detail).

– 2MP depth sensor.

OPPO A91 gives very good portrait photography with the above equipment, whether in backlit or night mode. The image produced is full of details and realistic lighting.

At the same time, the camera of OPPO A91 also has an AI beautification function. The new algorithm is based on 137 analysis points on the captured human face, which can automatically determine gender and age, thereby automatically optimizing, making the subject’s skin look smooth and natural. The good news for those who love portrait photography is that the front (16MP), rear, and video cameras support this feature.

A smart user interface, large battery capacity

ColorOS is inherently an interface that resonates in China and won many compliments from world technology fans because of its convenience. On OPPO A91, ColorOS 6.1 is customized on Android 9.0 Pie, which brings a rather flattering menu, many smart features and helps to improve performance.

OPPO A91 is equipped with a battery with a capacity of 4230mAh, large enough to meet the user’s daily use needs. In addition, the phone also supports VOOC 3.0 fast charging technology, which helps users fully charge the large battery in just 1 hour.

OPPO’s VOOC 3.0 fast-charging technology uses a solution to maintain the same voltage and increase current, improves charging speed, and supports safe charging while playing, suitable for gamers not wanting to abort the match if the phone is about to run out of battery.

Software and User Experience

The OPPO A91 runs on ColorOS 6.1, based on Android 9.0 Pie out of the box. While Android 9.0 was slightly outdated even at the time of the A91’s release, OPPO’s ColorOS brings its own set of features and customizations that enhance the overall user experience. OPPO has also provided updates since launch, including a jump to ColorOS 7, which is based on Android 10, offering a more refined and updated experience.

ColorOS 6.1 and 7 Features:

• Visual Design: ColorOS 6.1 features a clean, minimalistic design with a focus on smooth animations and a user-friendly interface. ColorOS 7 brings further refinements, including a more streamlined look, better iconography, and improved system-wide dark mode. The visual improvements are subtle but make the system feel more modern and polished.
• Customization: OPPO provides a wide range of customization options in ColorOS, allowing users to tweak everything from icon styles and home screen layouts to system themes and fonts. The Theme Store offers a variety of themes, wallpapers, and icon packs to further personalize the device.
• Gestures and Navigation: ColorOS offers both traditional navigation buttons and modern gesture-based navigation. The gesture controls are intuitive and responsive, allowing for smooth transitions between apps and an overall more immersive experience. Users can choose the navigation style that suits them best, which adds to the flexibility of the user experience.
• Game Space: For gaming enthusiasts, the A91 includes OPPO’s Game Space feature, which optimizes performance and minimizes distractions during gaming sessions. Game Space allows users to block notifications, enhance graphics, and monitor real-time system performance metrics, providing a more focused gaming experience.
• Smart Sidebar: The Smart Sidebar is a convenient feature that offers quick access to frequently used apps and tools. It can be accessed by swiping in from the side of the screen, making it easy to multitask or switch between apps without returning to the home screen.
• Security Features: ColorOS includes several security features, such as app lock, private safe, and the aforementioned in-display fingerprint scanner. The app lock allows users to secure specific apps with a password or fingerprint, while the private safe lets users store sensitive files in a secure, encrypted location on the device.

While ColorOS offers a lot of features and customization options, it’s not without its drawbacks. The skin is quite different from stock Android, which may not appeal to purists who prefer a more vanilla Android experience. Additionally, ColorOS can be somewhat heavy-handed with its approach to battery management, aggressively closing background apps to conserve power, which can occasionally disrupt notifications or multitasking.

Audio and Multimedia Experience

The audio experience on the OPPO A91 is mixed. The device includes a single bottom-firing speaker, which delivers decent sound quality but lacks the depth and richness of dual-speaker setups found on some competitors. The speaker is adequate for casual media consumption, such as watching videos on YouTube or listening to music in a quiet environment, but it struggles in noisier settings or when playing bass-heavy tracks.

On the plus side, the inclusion of a 3.5mm headphone jack is a major benefit for users who still prefer wired headphones. The audio output through the headphone jack is good, with clear mids and highs, though the bass response could be stronger. For a better audio experience, users may want to pair the A91 with quality headphones or external speakers.

The A91 also supports Bluetooth 4.2 for wireless audio, though it lacks support for newer codecs like aptX or LDAC, which could have improved the audio quality for Bluetooth headphones. While the Bluetooth connection is stable and reliable, audiophiles may find the lack of advanced codec support limiting.

For video playback, the OPPO A91’s AMOLED display shines. The vibrant colors and deep blacks make watching movies and TV shows a pleasure. The phone supports Full HD playback on streaming platforms like Netflix and YouTube, providing a crisp and enjoyable viewing experience. The display’s wide color gamut and decent brightness levels ensure that content looks good both indoors and outdoors.

Competitors and Alternatives

In the mid-range smartphone market, the OPPO A91 faces stiff competition from several other manufacturers. Some of the key competitors include:

• Xiaomi Redmi Note 9 Pro: The Redmi Note 9 Pro offers similar performance and a slightly larger battery, along with a more robust build. It also features a 48MP quad-camera setup and a large 6.67-inch display. However, the A91’s AMOLED display and slimmer design may appeal more to those who prioritize aesthetics and screen quality.
• Samsung Galaxy A51: The Galaxy A51 is another strong contender, featuring a Super AMOLED display, a quad-camera setup, and Samsung’s One UI, which is well-regarded for its user-friendly interface. The A51 also benefits from Samsung’s brand reputation and software support. However, the A91 may offer better value for those looking for a slightly more affordable option with similar features.
• Realme 6 Pro: Realme, a sub-brand of OPPO, offers the Realme 6 Pro, which comes with a higher refresh rate display (90Hz), a powerful Snapdragon 720G processor, and a versatile camera setup. The 90Hz display provides a smoother experience, especially in gaming, but the A91’s AMOLED display might still be preferable for users who prioritize color accuracy and contrast.
• Vivo V17: Vivo’s V17 is another alternative, offering an AMOLED display, a similar quad-camera setup, and a focus on camera features like Super Night Mode and Ultra Stable Video. The V17 also has a more refined software experience with FunTouch OS, which some users may prefer over ColorOS. However, the OPPO A91’s slim design and fast charging capabilities could make it more appealing to some users.

When choosing between these options, it’s important to consider your priorities, whether it’s display quality, camera performance, software experience, or design. The OPPO A91 offers a well-rounded package, but individual preferences will ultimately determine which device is the best fit.

Pros and Cons

Pros:

• Sleek and Lightweight Design: The OPPO A91’s slim profile and lightweight build make it comfortable to hold and use. The gradient finish on the back adds a touch of style.
• Vibrant AMOLED Display: The 6.4-inch AMOLED display is a standout feature, offering rich colors, deep blacks, and excellent contrast. It’s perfect for media consumption.
• Fast Charging: With VOOC 3.0 fast charging, the A91 can be quickly recharged, reducing downtime and keeping the phone ready for use.
• Versatile Camera Setup: The quad-camera system provides flexibility, allowing users to capture a variety of shots, from wide-angle landscapes to close-up macros.
• In-Display Fingerprint Sensor: The optical in-display fingerprint sensor is fast and reliable, adding to the modern feel of the device.
• Expandable Storage: The 128GB of internal storage is expandable via microSD, offering ample space for apps, media, and files.
• Good Battery Life: The 4,025mAh battery ensures the phone can last a full day of moderate use, with fast charging to quickly top up when needed.

Cons:

• Older Software: The A91 originally launched with Android 9.0 Pie, which was outdated even at release. While it has since been updated, some users may prefer a phone with a more up-to-date software experience.
• No NFC: The lack of NFC limits the phone’s functionality for mobile payments and other NFC-based services, which could be a drawback for some users.
• Single Speaker: The single bottom-firing speaker is adequate but lacks the depth and richness of a dual-speaker setup, which is found in some competitors.
• No 4K Video Recording: Video recording is limited to 1080p, which might disappoint users who expect higher resolution video capabilities in this price range.
• Plastic Build: While the plastic construction is well-executed, some users may prefer the more premium feel of glass or metal.

Conclusion

The OPPO A91 is a well-rounded mid-range smartphone that offers a solid blend of design, performance, and features at an attractive price point. Its slim and lightweight design makes it one of the more portable devices in its category, while the AMOLED display delivers a visual experience that rivals more expensive phones. The versatile quad-camera setup is capable of capturing a wide range of photos, making it suitable for casual photographers who want more flexibility in their mobile photography.

The inclusion of fast charging, a reliable in-display fingerprint sensor, and expandable storage are all strong selling points. However, the A91 is not without its limitations. The older software at launch, lack of NFC, and absence of 4K video recording may be deal-breakers for some users. Additionally, the single speaker and plastic build, while not necessarily flaws, are limitations that some users might consider when comparing the OPPO A91 with other smartphones in its price range.

where can you get a OPPO A91 online

Oppo A91 Dual-SIM 128GB ROM + 8GB RAM (GSM Only | No CDMA) Factory Unlocked 4G/LTE Smartphone (Blazing Blue) – International Version: Buy it now

Oppo A91 Dual-SIM 128GB ROM + 8GB RAM (GSM Only | No CDMA) Factory Unlocked 4G/LTE Smartphone (Black) – International Version: Buy it now