Xiaomi 12S UltravsOppo K12

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

Xiaomi
Xiaomi 12S Ultra
12S Ultra
Processor:Qualcomm Snapdragon 8+ Gen1
RAM:8GB
Storage:256GB

Quick Stats

Both phones barely scraped together six hours of screen time, with results surprisingly close overall.
The standout feature of the Xiaomi 12S Ultra is its impressive display with vibrant visuals and smooth motion capabilities.
The Xiaomi 12S Ultra's camera excels in low-light conditions and creative features, but lacks overall quality consistency.
The Xiaomi 12S Ultra's performance is a mixed bag, but ultimately edges out its competitor.
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
Xiaomi 12S Ultra
3.20 GHz
Oppo K12
2.63 GHz

RAM

Tie
Xiaomi 12S Ultra
8GB
Oppo K12
8GB

Storage

Tie
Xiaomi 12S Ultra
256GB
Oppo K12
256GB

Weight

Winner
Xiaomi 12S Ultra
225g
Oppo K12
186g
Specifications Comparison
Specification
Xiaomi Xiaomi 12S Ultra
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
256
256
Type
UFS Storage 3.1
UFS Storage 3.1
SD slot
No
N/A
Fingerprint security
Yes, in screen
Yes, in screen
Fingerprint sensor
Yes
Yes
Proximity sensor
N/A
Yes
Light sensor
Yes
Yes
Accelerometer sensor
Yes
Yes
Compass sensor
Yes
Yes
Gyroscope sensor
Yes
Yes
Barometer sensor
Yes
N/A
Gravity sensor
N/A
Yes
RGB sensor
Yes
N/A
Ultrasonic proximity virtual sensor
Yes
N/A
Audio
Dolby Atmos, Hi-Res Audio, Stereo Speakers, 2 microphones
Hi-Res Audio, Noise cancellation microphone, Stereo Speakers, 2 microphones
Antutu Score
1288403
866863
Antutu Version
Antutu v10
Antutu v10
Antutu Standing
Overall performance better than 92% of devices
Overall performance better than 85% of devices
Cooling system
Yes
Yes
Gaming buttons
No
No
Extras
3160mm² Leaf pulse cooling pump cooling system
N/A

Note: Highlighted specifications show differences between the two devices.

Pros and Cons

Xiaomi 12S Ultra

Strengths

No specific pros listed for this device

Weaknesses

No specific cons listed for this device

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

Xiaomi 12S Ultra

The Xiaomi 12S Ultra is a dual-camera powerhouse that boasts impressive specs, but its performance is uneven. The phone's main camera, backed by Leica's color science, delivers stunning results with rich and cinematic shots. However, the ultrawide camera struggles to produce accurate colors, particularly when switching between modes. In contrast, the Samsung Galaxy S series, although not as strong in the main camera department, excels with its ultrawide and zoom cameras. The overall color science of the Samsung phone is also more pleasing, especially when capturing skin tones. Battery life is another area where both phones shine. Despite having a slightly lower battery capacity, Xiaomi's 12S Ultra manages to keep up with Samsung's power-hungry device, thanks to its more efficient chip. Wireless charging speeds are also significantly faster on the Xiaomi phone, making it a clear winner in this department. Charging times and software features further sway the balance towards Xiaomi. The company's battery management software is intuitive and helpful, while its charging capabilities outpace those of Samsung. Ultimately, the Xiaomi 12S Ultra is a capable camera phone that edges ahead in some areas but lags behind in others. If you prioritize photography, this phone may be worth considering, but if other features like battery life, charging speed, or software are more important to you, Samsung's offerings might still take the cake. Both phones have their strengths and weaknesses. While Xiaomi takes the lead in some areas, Samsung excels in others. The decision ultimately comes down to your personal priorities.

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.

Compare other phones

Explore comparisons between any other phones

Compare phones
VS

Choose two different items to see a detailed comparison of their specifications, performance, and features