OPPO's K series has always been dedicated to creating a “good phone for the masses”, and since its release, it has solved the problems of lagging, poor battery life, and poor quality of mid-range phones. This time OPPO has brought the new OPPO K12 Plus, which has the largest 6400mAh ultra-durable battery in OPPO's history and a super-resistant design, so let's take a look at it together with my steps.

OPPO K12 Plus Review  Continued family-oriented design
On the outside, the OPPO K12 Plus is available in two colors, Snow Peak White and Xuanwu Black, and the one we got this time is the Xuanwu Black color. This color scheme uses mirror glass with an inner matte coating, and the overall design is simple and stylish, with no unnecessary decorations or textures, making it very durable.

OPPO K12 Plus Review
The lens module of OPPO K12 Plus is arranged vertically on the left side, which is much slimmer than the popular centered large circle design, and the lens protrusion is also very small. When using it, whether you hold it vertically or horizontally, your fingers are less likely to touch the lens, which is a great boon for gaming and photography parties.

OPPO K12 Plus Review
OPPO K12 Plus front and back are designed with 2.5D glass, with frosted right-angle frame, smooth transition, body thickness of only 8.37mm, the whole phone is also more comfortable to hold.

OPPO K12 Plus Review
Clear and smooth eye protection screen
In terms of screen display, the front of OPPO K12 Plus is equipped with a 6.7-inch LTPS flexible straight screen, supporting 120Hz high refresh rate and HDR display. After testing, the manual maximum brightness of the OPPO K12 Plus screen comes to about 530nit, and the excitation brightness can reach up to 900 nit, so the screen content can be clearly visible in the sunlight.

OPPO K12 Plus Review
OPPO K12 Plus is also equipped with the industry's top screen eye protection technology “Bright Eyes Eye Protection”, which supports 1Pulse class DC dimming at medium and high brightness, and 2160Hz PWM ultra-high-frequency dimming at low brightness, effectively reducing visual fatigue.

OPPO K12 Plus Review
Ultra-durable power and fast charging combination
In terms of battery life, the OPPO K12 Plus is equipped with the largest ever OPPO 6400mAh ultra-durable battery, which is built on a high-voltage resistant lithium cobaltate single-cell structure, and is officially claimed to have a 14% increase in energy density in the same volume compared to its predecessor, allowing for both a thin and light body and a large battery.

OPPO K12 Plus Review
So how long does the OPPO K12 Plus last? We started a 5-hour battery life test in a room temperature of 25 degrees, adjusted the brightness of the phone to 200nit, adjusted the volume to 50%, and used the 120 refresh rate mode.

OPPO K12 Plus Review
One hour of 1080P online video consumed 5%, one hour of Shake video consumed 3%, one hour of Today's Headlines consumed 4%, one hour of King's Honor qualifying (90 fps) consumed 15%, and one hour of 1080P 60 fps video recording consumed 17%. At the end of the 5-hour test, it still has 56% of battery power, which is very durable.

OPPO K12 Plus Review
The charging performance of the OPPO K12 Plus is also impressive, as it is equipped with a class-leading 80W Super Flash Charger. After the test from 0%, 10 minutes to charge 27% of the capacity, half an hour to charge 60%, and finally charged to 100% of the capacity in 57 minutes. For a phone with a 6400mAh battery, it took less than an hour to charge back up, which is pretty good.

OPPO K12 Plus Review
Flagship performance
In terms of performance, the OPPO K12 Plus is equipped with the strongest third-generation Snapdragon 7 flagship chip in its class, as well as an extra-large 4129mm2 liquid-cooled VC heatsink, which makes it smoother and more stable for running mainstream games. We tested the OPPO K12 Plus with King's Honor, using 120 fps and HD quality, and it ran at full frame for 30 minutes, and the heat condition was also good.

OPPO K12 Plus Review
In addition, the OPPO K12 Plus is equipped with OPPO's self-developed “memory gene restructuring technology” and “new storage technology”, which can be optimized for the depth of the cell phone hardware to improve the smoothness of the application and enhance the performance of the application of the background retention.

OPPO K12 Plus Review
Flagship main camera with flagship algorithm
When it comes to imaging, OPPO K12 Plus adopts Sony IMX882 flagship main camera, which supports 50 megapixels, f/1.8 aperture and OIS optical stabilization, and with OPPO's flagship imaging algorithms, you can take good photos with your hands.

OPPO K12 Plus Review  OPPO K12 Plus Review  OPPO K12 Plus Review  High quality and durable design
In terms of durability, OPPO K12 Plus adopts the new “Ultra Drop Resistant Diamond Architecture Design”, OPPO K12 Plus has drop protection on all six sides and corners, and the corners are also raised and reinforced to make the phone stronger and more durable for total protection. In addition, the phone is affixed with the original scratch-resistant and high-transparency protective film, which ensures that the screen is clear and high-transparency, and at the same time more scratch-resistant.

OPPO K12 Plus Review
In other aspects, OPPO K12 Plus is also equipped with many special features, such as AI elimination, AI keying, AI call summary and AI-enhanced Boo assistant and other AI features, which bring more convenience when using.

OPPO K12 Plus Review
In addition, OPPO K12 Plus also supports network-less communication, full-featured NFC and infrared remote control, bringing a more complete functional experience.
OPPO K12 Plus Review
Summary
The OPPO K12 Plus is an excellent quality phone with strong battery life and durability. It is equipped with a class-leading 80W Super Flash Charger, which can quickly fill up the 6400mAh battery, so you can stay away from battery life problems. It also has a simple and generous appearance, with a small image module and 120Hz flexible straight screen design is also very favorable to the gaming party in the game holding experience.

OPPO K12 Plus Review
If you want to buy a cell phone with a straight screen, durable quality, outstanding battery life, and the occasional need to play games, then the OPPO K12 Plus is a good choice.