Ulefone Armor X31 Pro 5GvsOppo K12

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

Ulefone
Ulefone Armor X31 Pro 5G
Armor X31 Pro 5G
Processor:MediaTek Dimensity 6300
RAM:8GB
Storage:256GB

Quick Stats

The Ulefone Armor X31 Pro 5G boasts an exceptional battery life, lasting up to three days with moderate usage.
The Ulefone Armor X31 Pro 5G's impressive display boasts high brightness, fast refresh rate, and scratch-resistant Corning Gorilla Glass.
The Ulefone Armor X31 Pro 5G boasts an impressive camera system with high-quality results in various lighting conditions.
The Mediatech 6300 chip provides decent performance, sufficient for daily usage and outdoor activities with a phone that can handle multiple tasks.
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
Ulefone Armor X31 Pro 5G
2.40 GHz
Oppo K12
2.63 GHz

RAM

Tie
Ulefone Armor X31 Pro 5G
8GB
Oppo K12
8GB

Storage

Tie
Ulefone Armor X31 Pro 5G
256GB
Oppo K12
256GB

Weight

Winner
Ulefone Armor X31 Pro 5G
306g
Oppo K12
186g
Rank
Ulefone Armor X31 Pro 5G
#566
Oppo K12
Winner
#396
Scores by Category
Rankings
Connectivity
Ulefone Armor X31 Pro 5G
#378
Winner
Oppo K12
#548
Design
Ulefone Armor X31 Pro 5G
#397
Winner
Oppo K12
#734
Display
Ulefone Armor X31 Pro 5G
#613
Oppo K12
#230
Winner
Performance
Ulefone Armor X31 Pro 5G
#609
Oppo K12
#290
Winner
Battery
Ulefone Armor X31 Pro 5G
#679
Oppo K12
#184
Winner
Camera
Ulefone Armor X31 Pro 5G
#259
Winner
Oppo K12
#655
item_phones_categoryId
Ulefone Armor X31 Pro 5G
#1
Tie
Oppo K12
#1
Tie

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

Specifications Comparison
Specification
Ulefone Ulefone Armor X31 Pro 5G
Oppo Oppo K12
Model
MediaTek Dimensity 6300
Qualcomm Snapdragon 7 Gen 3 (SM7550-AB)
CPU
2x2.4 GHz ARM Cortex, A76 +6x2.0 GHz ARM Cortex, A55
1x2.63 GHz Cortex, A715 +3x2.4 GHz Cortex, A715 + 4x1.8 GHz Cortex, A510
Type
Octa-Core
Octa-Core
Nanometer
6
4
Frequency
2.40
2.63
64 Bits
Yes
Yes
GPU
Arm Mali-G57 MC2
Qualcomm Adreno 720
RAM
8
8
Type
LPDDR4X RAM
LPDDR4X RAM
Capacity
256
256
Type
N/A
UFS Storage 3.1
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
N/A
Yes
Audio
N/A
Hi-Res Audio, Noise cancellation microphone, Stereo Speakers, 2 microphones
Antutu Score
406666
866863
Antutu Version
Antutu v10
Antutu v10
Antutu Standing
Overall performance better than 69% 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

Ulefone Armor X31 Pro 5G

Strengths

The phone's design is sturdy and has excellent protection capability with IP68, IP69K, and military-grade certifications.
It can withstand extreme temperatures, falls, and has a waterproof and dustproof design.
The camera setup is impressive, with a 64MP main camera that takes high-quality photos in daylight and supports digital cropping to 2x focal length.
The phone has a 25MP infrared night vision camera that performs well at night and provides a unique tone and dynamic range during the day.
It has a large 6.56-inch LCD screen with a maximum brightness of 800 nits, providing an excellent display effect.
The phone comes with 8GB of RAM, 256GB of storage space, and supports memory expansion to 16GB, making it suitable for daily usage needs.

Weaknesses

The Mediatech 6300 chip is not as exciting compared to the previous models, with only a slight increase in frequency and no upgrade in architecture or process.
It may not be as fast as other smartphones with more powerful chips like Qualcomm 4 Gen 2.
The phone's weight of around 300g may be considered heavy for some users.
There is no headphone jack, which may be a drawback for some users who prefer wired audio.

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

Ulefone Armor X31 Pro 5G

The Ulefone Armor X31 Pro 5G is a rugged smartphone designed for outdoor enthusiasts and professionals. With its IP68, IP69K, and MIL-STD-810G certifications, this phone can withstand harsh environments, including water, dust, extreme temperatures, and drops. The device features a 64MP main camera, 25MP infrared night vision camera, and a 6.56-inch 120Hz LCD screen with 800nits brightness. Powered by the Mediatech MT6300 chip, this phone can handle multiple apps and daily usage needs. With 8GB RAM, 256GB storage, and microSD card expansion up to 2TB, the Ulefone Armor X31 Pro 5G is a reliable companion for outdoor adventures.

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 Ulefone Armor X31 Pro 5G ReviewRead Oppo K12 Review

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