Design and Build Quality
Aesthetics and Materials
The Oppo A9 comes with a look that’s kinda stylish yet still practical, like most mid-range Oppo phones we’re used to seeing. It uses a glossy plastic back , which sort of copies the glass vibe, so it feels more premium than you’d think, but without the same fragile issues you get with real glass. Sure , plastic isn’t as “premium” as metal or glass on paper, but it actually behaves better when you drop it, and it’s generally less likely to crack or shatter. You can pick from color choices like Mica Green, Ice Jade White, and Fluorite Purple, and each one shows a gradient finish. That bit of shading gives the phone a small but nice elegance, even in everyday use.
Ergonomics and Handling
This is a big handset, it stands at about 162mm tall, and its thickness is roughly 8.3mm. The weight lands near 190 grams, so it feels fairly light considering the overall size. The edges are curved and the corners are rounded , which makes it easier to hold for longer periods. That said, the glossy back can feel a bit slippery at times , especially if your hands are even slightly damp. To help with that, Oppo throws in a simple silicone case in the box, giving you extra grip and basic protection.
As for controls, the button placement is pretty normal, pretty standard i guess. The power button sits on the right side while the volume rockers are on the left. You can reach them without much stretching , and they also give this satisfying click when you press them. On the back, there’s a fingerprint scanner placed in the middle, and it’s quick , reliable , so unlocking is usually fast and pretty secure.
Build Quality
Even if the Oppo A9 lands in that mid-range spot, it honestly feels pretty well built overall. The plastic back and frame, might not look as fancy as metal or glass , but they hold up nicely and also keep the price under control. In the hand it has that solid, grounded feel, no creaks, no weird flexing when you press a bit. On the front, there’s Gorilla Glass 3 covering everything, so you get some extra protection for scratches and those small “oops” drops.
Display
Screen Size and Resolution
The Oppo A9 uses a 6.53 inch IPS LCD screen, with 1080 x 2340 pixels. This Full HD+ setup puts you around 395 PPI, so text, and images show up pretty sharp, and clear too. It runs on a 19.5:9 aspect ratio, which makes the display pretty tall and, slightly narrow… kinda nice if you’re streaming videos, scrolling around, or keeping multiple apps open at the same time.
Display Quality
For its category, the display quality is genuinely impressive. The IPS LCD panel pushes vibrant colors, gives you decent contrast, and the viewing angles are solid. Sure, it can’t quite deliver the deep blacks and extra “pop” you usually see on AMOLED screens, but day to day, it still looks enjoyable. Brightness is strong enough for outdoor use, even when the sun is pretty direct, though glare and reflections can be annoying at times.
The Oppo A9 comes in around that 84% screen to body ratio , mostly because the bezels are kinda slim, and then there’s this small waterdrop notch near the top. That notch is basically where the front camera lives, and honestly it doesn’t really get in your way, so the whole vibe stays immersive, like when you’re watching videos, browsing the web, or jumping into games.
Additional display features
The Oppo A9 also comes with a few software things, that are meant to make the display feel more pleasant. There is a Night Shield mode, it helps cut down blue light, so the screen feels gentler on your eyes when you’re using it at night. You can have it turn on automatically using a schedule or , if you prefer , just switch it on and off yourself. Also, the phone includes an Eye Protection mode which further adjust the screen settings, for less eye strain over time.
In general , the Oppo A9 kind of marks a shift for the A series, it brings a youthful and modern look along with solid performance, a 5000mAh battery, and 4 cameras for impressive imaging results. Oppo A9 has a quite strong configuration and it is among the more competitive smartphones available right now.
For the mid range crowd, the Oppo A9 is built around serious performance, kinda, thanks to the Qualcomm Snapdragon 665 platform and an 8-core set up with 64-bit cores. Compared with older A series devices, the A9 processor is upgraded about 40% while the graphics speed, is boosted by over 100% . Overall, it feels like a noticeable step forward rather than a small tweak.
Besides, with 8GB RAM and 128GB high memory capacity, users can comfortably store games, music, or videos without constantly cleaning up free space. The device is equipped with a USB Type-C charging port that allows for easier and more convenient connection, while the 2 SIM trays separate from the microSD card tray, maximize storage space.
Especially for the gaming experience, Game Boost 2.0 technology improves the Frame Boost and Touch Boost features, which will deliver a faster and more responsive game experience. Frame Boost helps to predict the impending situation in the game to allocate resources, help the machine to process faster, and limit lag. Meanwhile, Touch Boost mode helps identify and navigate touch actions on the screen more accurately, increasing touch performance by 16%, allowing for quick response during use.
In terms of sound, Oppo A9 is equipped with Dual Stereo for higher volume and improved sound quality, along with Dolby Atmos sound effects for an impressive and engaging audio experience, make entertainment experiences with videos and games always enjoyable no matter where you are.
Good performance not only comes from hardware but also software. Oppo A9 runs on the ColorOS 6 platform (Android 9.0) which is optimized for both performance and power. Not only that, but ColorOS 6 also integrates many smart features such as Smart Assistant, Riding mode, Music Party, and Gesture Navigation to help improve the usability, safety of the user, and the versatility of the phone.
Oppo A9 not only has impressive performance but also has a drastically improved battery life. The 5,000mAh battery capacity allows users to use the device more comfortably, can use it continuously for 19 hours. Not only that, but the product also owns a new special technology – OTG energy sharing. This technology allows charging between two supported OPPO phones via cable. In an urgent situation that needs to be recharged, friends who use the OPPO A9 can easily share batteries with just one cable.
Oppo A9 6.53 Inch Mobile Phone 4G LTE Android 8.1 Octa Core Cellphone Back Fingerprint 16MP 3D Body 4020mAh (Purple 4GB+128GB): Buy it now
Oppo A9 6.53 Inch Mobile Phone 4G LTE Android 8.1 Octa Core Cellphone Back Fingerprint 16MP 3D Body 4020mAh (Green 4GB+128GB): Buy it now
A Cluster of 4 cameras with a 48MP main camera
The 4-camera cluster comes with a 48MP main camera, an 8MP camera for 119-degree ultra-wide angle, a 2MP camera for monochrome portraits, and a 2MP camera for artistic portrait photos. It is made to match users needs when shooting photos across pretty much all angles and categories.
The 48MP main camera really helps with image clarity at higher resolutions, so you end up with sharper and more nuanced photos, basically more detail. The 8MP sensor meanwhile adds a 119 degree ultra wide angle, which means you can fit in a broader scene too, even wider shots in tight spots where things usually feel a bit cramped. The monochrome portrait camera (mono lens) and the portrait lens camera let users apply various filters on their portrait images, which helps create more customized photos, and also brings a distinct kiThis 4-camera cluster has a 48MP main camera, an 8MP one for 119-degree ultra wide angle, a 2MP camera made for monochrome portraits, and another 2MP camera for artistic portrait photos, and yea it should match users’ needs when they’re capturing photos, across all shooting angles and photography categories.
The 48MP main sensor kinda helps images look sharper, especially at higher resolutions, so what you end up with is clearer, more detail rich pictures. The 8MP unit also comes with a 119-degree ultra wide angle, basically giving you a broader range of scenes, so you can pull off wider shots even in small spaces. Then there’s the monochrome portrait camera (mono lens) plus the portrait lens camera, these let people apply different kinds of filters on portraits, so you can create more personalized looks, and bring a more unique shooting style.nd of shooting style.
Also, the A9 also supports Super Night mode 2.0, which creates brighter night shots and vivid detail. At the same time, the front camera with 16MP resolution, using AI Beautification technology to optimize selfie photography, allows users to customize according to the latest trends. 4K movie recording technology on the A9 also brings about better overall effects, creating clearer videos, with vivid colors and low latency, combined with video stabilization technology that promises to deliver more stable, professional video, combined with many different filters.
Premium design with vibrant colors
Using a highly aesthetically pleasing 3D gradation design philosophy, OPPO A9 brings a more vibrant, eye-catching look and two main color options: Passion Blue and Breakthrough Purple. More specifically, the A9 is made from four curved 3D panels, making the phone slim and light and fit in the palm of your hand.
Oppo A9 is also equipped with a new generation water-drop screen, with a size of 31.4% smaller than the previous generation, providing better design and experience for users. The 6.5-inch screen has an 89% screen-to-body ratio, uses Corning Gorilla Glass 3+ that is twice as stiffer than the third generation and is more resistant to scratches. Sunlight Screen improves directly under sunlight and ensures true colors in low-light environmental conditions.
Tech Reviewer & Product Analyst
Định Bia has spent over 10 years testing consumer electronics with a focus on smart technology. He work as a product advisor at Biareview where he helped customers find the right devices for their needs. He personally tests every product featured on this site using a consistent evaluation framework covering quality, durability, and value. All reviews are based on experience, not influenced by the manufacturer.
