Asus Zenfone 9vsOppo K12

We compare these two popular phones to help you decide which one fits your needs and budget better.

Asus
Asus Zenfone 9
Zenfone 9
Processor:Qualcomm Snapdragon 8+ Gen1
RAM:8GB
Storage:128GB

Quick Stats

The Asus Zenfone 9 boasts exceptional battery life, lasting over a full day with moderate use easily.
The Asus Zenfone 9's exceptional display is its standout feature, offering vibrant colors and immersive viewing experience.
The Asus Zenfone 9's camera is solid, but lacks features compared to other high-end smartphones despite its quality.
The Asus Zenfone 9 offers exceptional performance, delivering seamless experiences with its top-of-the-line processor and efficient design capabilities.
Oppo
Oppo K12
K12
Processor:Qualcomm Snapdragon 7 Gen 3 (SM7550-AB)
RAM:8GB
Storage:256GB

Quick Stats

The Oppo K12's battery life is its standout feature, promising an all-day experience with efficient power management.
The Oppo K12's stunning display offers an impressive visual experience with high brightness and vibrant colors, ideal for gaming.
The Oppo K12's camera system offers capable and reliable photo and video capture without breaking the bank.
The Oppo K12 delivers smooth performance for everyday tasks and light gaming, with efficient battery usage guaranteed.
Key Differences

Processor Speed

Winner
Asus Zenfone 9
3.20 GHz
Oppo K12
2.63 GHz

RAM

Tie
Asus Zenfone 9
8GB
Oppo K12
8GB

Storage

Winner
Asus Zenfone 9
128GB
Oppo K12
256GB

Weight

Winner
Asus Zenfone 9
165g
Oppo K12
186g
Rank
Asus Zenfone 9
Winner
#135
Oppo K12
#396
Scores by Category
Rankings
Connectivity
Asus Zenfone 9
#48
Winner
Oppo K12
#548
Design
Asus Zenfone 9
#35
Winner
Oppo K12
#734
Display
Asus Zenfone 9
#222
Winner
Oppo K12
#230
Performance
Asus Zenfone 9
#158
Winner
Oppo K12
#290
Battery
Asus Zenfone 9
#398
Oppo K12
#184
Winner
Camera
Asus Zenfone 9
#520
Winner
Oppo K12
#655
item_phones_categoryId
Asus Zenfone 9
#1
Tie
Oppo K12
#1
Tie

Note: Lower rank number indicates a better position in category.

Specifications Comparison
Specification
Asus Asus Zenfone 9
Oppo Oppo K12
Model
Qualcomm Snapdragon 8+ Gen1
Qualcomm Snapdragon 7 Gen 3 (SM7550-AB)
CPU
1x3.2 GHz Cortex, X2 +3x2.8 GHz Cortex, A710 + 4x2.0 GHz Cortex, A510
1x2.63 GHz Cortex, A715 +3x2.4 GHz Cortex, A715 + 4x1.8 GHz Cortex, A510
Type
Octa-Core
Octa-Core
Nanometer
4
4
Frequency
3.20
2.63
64 Bits
Yes
Yes
GPU
Qualcomm Adreno 730 875 MHz
Qualcomm Adreno 720
RAM
8
8
Type
RAM LPDDR5
LPDDR4X RAM
Capacity
128
256
Type
UFS Storage 3.1
UFS Storage 3.1
SD slot
No
N/A
Fingerprint security
Yes, on the side
Yes, in screen
Fingerprint sensor
Yes
Yes
Proximity sensor
Yes
Yes
Light sensor
Yes
Yes
Accelerometer sensor
Yes
Yes
Compass sensor
Yes
Yes
Gyroscope sensor
Yes
Yes
Gravity sensor
Yes
Yes
Hall sensor
Yes
N/A
Audio
Hi-Res Audio, Noise cancellation microphone, Stereo Speakers, 3 microphones
Hi-Res Audio, Noise cancellation microphone, Stereo Speakers, 2 microphones
Antutu Score
1232500
866863
Antutu Version
Antutu v10
Antutu v10
Antutu Standing
Overall performance better than 91% of devices
Overall performance better than 85% of devices
Cooling system
No
Yes
Gaming buttons
No
No
Extras
N/A
N/A

Note: Highlighted specifications show differences between the two devices.

Pros and Cons

Asus Zenfone 9

Strengths

The phone has a solid but lacking camera system, which is not bad for a compact phone.
The software on the phone looks better than what Samsung would offer on the s22 and just makes sense.
We get the large Android material U toggles which you can turn on or off.
Double tapped awake and sleep features are included.
The fingerprint scanner is super fast.
Speakers sound good, although not as loud as the iPhone 14 pro speakers
Battery life makes daily usage a breeze

Weaknesses

We lack some things like Android 13 which was launched right before this review.
The phone does not have wireless charging, instead it has a headset jack.
It is priced higher than the Samsung s22, with new prices ranging from $500-$600
Some add-ons for the phone are expensive, such as a kickstand or backpack mount costing over $100 and $200 respectively
The face unlock feature isn't entirely slow but not the fastest either.
Top speaker is not as loud as the bottom one in stereo setup
It lacks some of the features that I personally prefer, such as gimmicks like 4K video with gimbal stabilization

Oppo K12

Strengths

The Oppo K12 features a fast refresh rate OLED display with a resolution of 2408 x 1080 pixels, supporting a refresh rate of 120Hz.
It has a super fall resistance structural design, making it durable and reliable.
The phone comes with a huge battery (5,500 mAh) and supports fast charging (100W Super VOOC).
The Oppo K12 features a power management chip that enhances battery efficiency, ensuring longer battery life and increased durability.
It has a great multimedia experience with good visibility even outdoors thanks to its 10bit color depth OLED display.
The phone's camera features a 50-megapixel Sony IMX 882 sensor with Optical image stabilization, producing above-average quality photos.
The Oppo K12 is available in three storage variants (8/256GB, 12/256GB, and 12/512GB), making it suitable for various user needs.

Weaknesses

There's no mention of the phone's weight or dimensions, which might be a concern for some users.
The Oppo K12's camera performance is described as 'above-average,' which might not satisfy those looking for top-notch photography capabilities.
There's no specific information about the phone's gaming performance beyond playing Honor of Kings at 120 frames per second.
Some users might find the design a bit plain or uninspired, despite its professional look and comfortable grip.
The phone's price is not explicitly mentioned in the review text, which makes it hard to compare with other devices.
There's no discussion about the phone's audio quality, which might be an important factor for some users.
Some readers might find the Oppo K12's processor (Snapdragon 7 Gen 3) a bit underpowered for heavy gaming or demanding tasks.
Read Full Reviews

Asus Zenfone 9

The Asus Zenfone 9 is a compact flagship Android phone that stands out in a world where large screens are the norm. With a processor that rivals its bigger siblings, this device packs a punch despite its modest size. The camera, although solid, lacks some of the flair found on other phones. However, with its sleek design and snappy performance, it's easy to see why some might consider it a hidden gem. As I delve into the details of this phone, I'll weigh its pros and cons, exploring whether its compact size is enough to make it worth the investment.

Oppo K12

The Oppo K12 5G phone has just launched, boasting impressive features such as a fast refresh rate OLED display, super fall resistance structural design, and mid-segment power-efficient processor. The device also comes with a huge battery, fast charging capabilities, and a sleek design. With a focus on durability and performance, the Oppo K12 seems to be an exciting addition to the market. In this review, we'll take a closer look at its features, camera, and overall user experience.

Need help choosing?

Read our detailed reviews to understand which device is better for your specific needs and budget.

Read Asus Zenfone 9 ReviewRead Oppo K12 Review

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