Ulefone Armor X31 Pro 5GvsOppo K12 Plus

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 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
Ulefone Armor X31 Pro 5G
2.40 GHz
Oppo K12 Plus
2.63 GHz

RAM

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

Storage

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

Weight

Winner
Ulefone Armor X31 Pro 5G
306g
Oppo K12 Plus
186g
Rank
Ulefone Armor X31 Pro 5G
#566
Oppo K12 Plus
Winner
#394
Scores by Category
Rankings
Connectivity
Ulefone Armor X31 Pro 5G
#378
Winner
Oppo K12 Plus
#545
Design
Ulefone Armor X31 Pro 5G
#397
Winner
Oppo K12 Plus
#733
Display
Ulefone Armor X31 Pro 5G
#613
Oppo K12 Plus
#228
Winner
Performance
Ulefone Armor X31 Pro 5G
#609
Oppo K12 Plus
#289
Winner
Battery
Ulefone Armor X31 Pro 5G
#679
Oppo K12 Plus
#181
Winner
Camera
Ulefone Armor X31 Pro 5G
#259
Winner
Oppo K12 Plus
#654
item_phones_categoryId
Ulefone Armor X31 Pro 5G
#1
Tie
Oppo K12 Plus
#1
Tie

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

Specifications Comparison
Specification
Ulefone Ulefone Armor X31 Pro 5G
Oppo Oppo K12 Plus
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 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

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 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 Ulefone Armor X31 Pro 5G ReviewRead Oppo K12 Plus Review

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