Oppo A57 4G vs Xiaomi Redmi 12 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 6, 2022 June 15, 2023
Release Year 2022 2023

Physical

Volume 98.22 cm³ 105.49 cm³
Screen Size to Weight Ratio 3.51 "/g 3.42 "/g
Weight 187 g 198.5 g
Height 163.7 mm 168.6 mm
Width 75 mm 76.3 mm
Thickness 8 mm 8.2 mm
Foldable Design No No
Available Colors
  • Glowing Black
  • Glowing Green
  • Midnight Black
  • Polar Silver
  • Sky Blue
  • Moonstone Silver

Display

Screen Size 6.56 " 6.79 "
Resolution 720 x 1612 1080 x 2460
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 84.2 % 85.1 %
Pixel Density 269 PPI 396 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 550 nits

Hardware

Battery Capacity per Screen Area 116.19 mAh/in² 108.45 mAh/in²
Battery Density 50.91 mAh/cm³ 47.4 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6765G Helio G35 (12 nm) Mediatek MT6769H Helio G88 (12 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU PowerVR GE8320 Mali-G52 MC2

Connectivity

USB Version 2.0 N/A
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C

Software

Operating System Android Android
Initial OS Version 12 13
Maximum OS Version 14 14

Comparison Summary

Okay, let's dive deep into the Oppo A57 4G and Xiaomi Redmi 12, putting aside the marketing hype and focusing on what these phones truly offer to the everyday user.

1. Specifications Breakdown

Here’s a detailed comparison table with real-world implications:

FeatureOppo A57 4GXiaomi Redmi 12Real-World Implications
Design
Dimensions163.7 x 75 x 8 mm168.6 x 76.3 x 8.2 mmRedmi 12 is slightly larger and heavier; A57 might feel more compact in hand.
Weight187g198.5gA57 is slightly lighter, less tiring for long usage.
Display
Size6.56"6.79"Redmi 12 offers a more immersive viewing experience due to larger screen size.
Resolution720 x 16121080 x 2460Redmi 12's display is significantly sharper with more detail.
Pixel Density (PPI)269396Redmi 12 provides crisper text and images.
TechnologyIPS LCDIPS LCDBoth have the same display tech; good color accuracy and viewing angles, but not as vibrant as AMOLED.
Refresh Rate60Hz90HzRedmi 12 offers smoother scrolling and animations, leading to a more fluid experience.
Brightness0 nits0 nitsBoth have the same peak brightness; might struggle in direct sunlight (Missing info).
Performance
ChipsetMediatek Helio G35Mediatek Helio G88Redmi 12’s G88 chip provides faster performance for apps and games.
AnTuTu Score110,000249,400Redmi 12 significantly outperforms the A57, making it suitable for gaming and heavy multitasking.
GPUPowerVR GE8320Mali-G52 MC2Redmi 12 has a more powerful GPU which translates to better gaming and graphics performance.
Camera
Main Camera13MP, f/2.250MP, f/1.8Redmi 12 captures much more detail and has better low-light performance due to a wider aperture.
Selfie Camera8MP, f/2.08MP, f/2.1A57 has a slightly wider aperture, potentially better low-light selfies.
Wide Angle LensNone8MP, f/2.2Redmi 12 provides greater versatility in shooting with an additional wide angle lens.
Depth Sensor2MP, f/2.4NoneA57 offers dedicated depth sensing for portrait photos.
Macro Lens2MP, f/2.42MP, f/2.4Similar macro cameras; good for closeup photography.
Video Recording1080p@30fps1080p@30fpsBoth phones offer the same standard video recording.
Camera FeaturesPDAF, Panorama4K Video, RAW, Digital ZoomRedmi 12 offers additional features for video and more advanced control for photos.
Battery Life
Capacity5000mAh5000mAhBoth phones should provide all-day battery life for moderate users.
Charging33W Fast Charging18W Fast ChargingA57 charges much faster, saving valuable time when needing to top-up the battery.
Battery FeaturesNon-removableReverse Charging, Non-removableRedmi 12 can be used to charge other devices in a pinch.
Software & Connectivity
OSAndroid 12Android 13Redmi 12 offers the latest OS out of the box.
Wi-Fi802.11ac, Dual-band802.11ac, Dual-bandBoth have similar Wi-Fi capabilities.
Bluetooth5.15.3Redmi 12 has newer Bluetooth version for better efficiency and connection stability.
GPSQZSS, A-GPS, etc.GPS, A-GPS, etc.A57 has a more comprehensive set of satellite positioning options.
Storage & Memory
Internal Storage64/128GB128/256GBRedmi 12 has more storage options to hold larger amounts of photos and files.
RAM3/4GB4/6/8GBRedmi 12 has more RAM, meaning better performance when multitasking.
Expandable StorageNoNoNeither support external storage.
Audio
Audio QualityStereo SpeakersBasic audio featuresA57 has better sound quality, providing more immersive audio with its stereo speaker set up.
Security
Securityside-mounted fingerprint sensorside-mounted fingerprint sensorBoth use a side-mounted fingerprint for easy and fast unlocking.
Sensors
SensorsProximity, Accelerometer, GyroscopeAccelerometer, Compass, Gyroscope, Ultrasonic proximity virtualRedmi 12 provides a more rounded sensor package, with a compass being a useful addition.

2. Key Insights

Oppo A57 4G

Strengths:

  • Faster Charging: The 33W fast charging is a major advantage, significantly reducing charging time.
  • Stereo Speakers: Better audio quality is a plus for those who consume a lot of media.
  • Lighter Build: More comfortable to hold for longer periods.

Limitations:

  • Lower Performance: The older Helio G35 chip struggles with demanding tasks and games.
  • Lower Resolution Display: Not as sharp or detailed as the Redmi 12.
  • Limited Storage: Fewer options and lower starting storage capacity.
  • No Expandable Storage: Lacks the flexibility of adding a microSD card.

Xiaomi Redmi 12

Strengths:

  • Superior Performance: The Helio G88 offers much better performance for all tasks.
  • Sharper Display: Higher resolution and pixel density provide a better viewing experience.
  • Versatile Camera: Includes a wide-angle lens and a main 50MP camera.
  • More Storage and RAM: Better for storing large files and having multiple apps open at once.
  • Latest OS: Android 13 provides updated software experience.
  • Reverse Charging: Allows for charging other devices using your phone.

Limitations:

  • Slower Charging: 18W charging is comparatively slower than the A57.
  • Larger and Heavier: Might be less comfortable for users with smaller hands.
  • No Expandable Storage: Lacks the flexibility of adding a microSD card.
  • Basic Audio: Lacks a stereo speaker setup for a more immersive audio experience

3. User Profiles and Recommendations

  • Oppo A57 4G:

    • Best for: Users who prioritize fast charging and enhanced audio experience (listening to music or podcasts, watching videos), and value a more compact and lightweight device.
    • Use Cases: Casual users who don’t play intensive games, people who need a phone with fast charging for quick top-ups, and those who value stereo speakers for media consumption.
  • Xiaomi Redmi 12:

    • Best for: Users who want a more powerful phone for gaming, multitasking and general usage, with a larger, higher resolution display, and a better camera system.
    • Use Cases: Moderate to heavy users who play games, stream videos, take a lot of photos, and need higher storage capacity, and those who want more future proof performance.

4. Buying Decision Framework

Here are three key questions to guide your decision:

  1. Performance Needs: How important is speed and smooth multitasking for you? If you play graphic-intensive games, or multitask extensively, the Redmi 12 is a better choice. If you're a more casual user, the A57 should suffice, but may struggle with more demanding tasks.
  2. Display Preferences: Do you value a sharper, more detailed display? If so, the Redmi 12’s higher resolution is important. If the difference is less important, then the A57's display will work just fine.
  3. Charging and Audio: Do you prefer fast charging and stereo speakers? If so, the Oppo A57 is the way to go. If you prefer reverse charging and dont mind the more basic audio on the Redmi 12, its still a great device.

Scenario-Based Recommendations:

  • Budget-Conscious Casual User: If you're on a tight budget and your main priorities are a compact device with fast charging, then the A57 is sufficient.
  • Multimedia Enthusiast: If you watch videos, listen to music and have more demanding use cases, then the Redmi 12 with its larger screen, and higher performance is a great choice.
  • Mobile Gamer: The Redmi 12 with its faster processor, more RAM, and better graphics performance is clearly the better choice.
  • Photography enthusiast: The Redmi 12, with its higher resolution main camera, a wide-angle lens, and 4K video recording, would be a better choice for taking pictures and recording videos.

Final Verdict

If I were choosing between the two, I would pick the Xiaomi Redmi 12. While the Oppo A57 4G’s faster charging and stereo speakers are attractive features, the Redmi 12's superior processing power, higher-resolution display, more versatile camera system, and more RAM and storage make it the more sensible option for long-term use. The performance jump is significant and would translate into a smoother, more enjoyable user experience for the majority of daily tasks, as well as for multimedia and gaming. While the A57 wins on charging speed, the Redmi 12 has a larger battery capacity and will also be able to provide long lasting battery life.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.