Asus Zenfone 9vsOppo K12 Plus

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 Plus
K12 Plus
Processor:Qualcomm Snapdragon 7 Gen 3 (SM7550-AB)
RAM:8GB
Storage:256GB

Quick Stats

The Oppo K12 Plus's battery life fell short of expectations due to moderate-to-poor endurance and heavy usage impact.
The Oppo K12 Plus boasts an impressive AMOLED display with fast refresh rate and high resolution features.
The Oppo K12 Plus's camera system excels in low-light conditions with excellent image quality and minimal noise.
The Oppo K12 Plus's performance under heavy loads, like gaming, leaves room for improvement significantly.
Key Differences

Processor Speed

Winner
Asus Zenfone 9
3.20 GHz
Oppo K12 Plus
2.63 GHz

RAM

Tie
Asus Zenfone 9
8GB
Oppo K12 Plus
8GB

Storage

Winner
Asus Zenfone 9
128GB
Oppo K12 Plus
256GB

Weight

Winner
Asus Zenfone 9
165g
Oppo K12 Plus
186g
Rank
Asus Zenfone 9
Winner
#135
Oppo K12 Plus
#394
Scores by Category
Rankings
Connectivity
Asus Zenfone 9
#48
Winner
Oppo K12 Plus
#545
Design
Asus Zenfone 9
#35
Winner
Oppo K12 Plus
#733
Display
Asus Zenfone 9
#222
Winner
Oppo K12 Plus
#228
Performance
Asus Zenfone 9
#158
Winner
Oppo K12 Plus
#289
Battery
Asus Zenfone 9
#398
Oppo K12 Plus
#181
Winner
Camera
Asus Zenfone 9
#520
Winner
Oppo K12 Plus
#654
item_phones_categoryId
Asus Zenfone 9
#1
Tie
Oppo K12 Plus
#1
Tie

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

Specifications Comparison
Specification
Asus Asus Zenfone 9
Oppo Oppo K12 Plus
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 Plus

Strengths

The phone has a good display with a fast refresh rate AMOLED screen.
It comes with stereo speakers providing a nice multimedia experience.
The camera quality is above average, with a 50MP main camera and an 8MP ultra-wide camera.
The phone has a lightweight design making it easy to hold for a long time.
It runs on Color OS 14 which is highly optimized for performance.
The phone's AMOLED screen also features diamond frame design for better protection.

Weaknesses

The phone may not be suitable for heavy gaming due to its average gaming performance.
The frame of the phone is made of plastic and has no antenna lines, which might affect the phone's durability.
The fingerprint sensor is placed quite low on the phone, making it slightly inconvenient to access.
The chin of the phone is slightly larger, affecting its overall aesthetic appeal.
The phone's average frame rate dropped to 37.6 FPS after playing a heavy game for 30 minutes at high quality settings with 60 FPS.
The phone's back temperature reached 41.7°C during heavy gaming, which might be a concern.
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 Plus

The Oppo K12 Plus is a mid-range 5G phone that boasts a fast refresh rate AMOLED display and a powerful Snapdragon 7 Gen 3 processor. With a 50MP dual camera and lightweight design, this phone promises a seamless multimedia experience. The device also features a 6.7-inch screen, 120Hz refresh rate, and dual stereo speakers. We'll dive deeper into the phone's performance, camera quality, and gaming capabilities in our review, so stay tuned!

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 Plus Review

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