Xiaomi 12 vs Realme 12x - Detailed Phone Comparison

Detailed Comparison

Specification
Xiaomi 12
Xiaomi 12
Xiaomi
Realme 12x
Realme 12x
Realme

General

Launch Date December 31, 2021 April 7, 2024
Release Year 2021 2024

Physical

Volume 87.52 cm³ 99.56 cm³
Screen Size to Weight Ratio 3.51 "/g 3.51 "/g
Weight 179 g 190 g
Height 152.7 mm 165.6 mm
Width 69.9 mm 76.1 mm
Thickness 8.2 mm 7.9 mm
Foldable Design No No
Available Colors
  • Blue
  • Green
  • Purple
  • Gray
  • Glowing Black
  • Feather Green

Display

Screen Size 6.28 " 6.67 "
Resolution 1080 x 2400 720 x 1604
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.2 % 85.1 %
Pixel Density 419 PPI 264 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 625 nits
Peak Brightness 1100 nits N/A

Hardware

Battery Capacity per Screen Area 114.10 mAh/in² 112.39 mAh/in²
Battery Density 51.41 mAh/cm³ 50.22 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 730 Mali-G57 MC2

Connectivity

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

Software

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

Comparison Summary

Okay, let's dive into a detailed comparison of the Xiaomi 12 and the Realme 12x. As always, we're going beyond the spec sheet to understand what these numbers actually mean for your day-to-day use.

1. Specifications Breakdown

Here’s a detailed look at how these phones stack up, with a focus on real-world implications:

FeatureXiaomi 12Realme 12xReal-World Implications
Design
Dimensions152.7 × 69.9 × 8.2 mm165.6 × 76.1 × 7.9 mmXiaomi 12 is significantly more compact, making it easier to handle one-handed; Realme 12x is larger and may be less comfortable for some users.
Weight179g190gXiaomi 12 is slightly lighter, making it more pocketable and comfortable for long durations.
Display
Size6.28"6.67"Realme 12x provides a more immersive viewing experience; Xiaomi 12's smaller screen is easier to handle.
Resolution1080x2400720x1604Xiaomi 12 offers a much sharper display, resulting in clearer text and images; Realme 12x has a lower resolution, which may appear less detailed.
Pixel Density (PPI)419264Xiaomi 12’s higher pixel density results in crisper details; Realme 12x’s display is noticeably less sharp.
TechnologyAMOLEDIPS LCDXiaomi 12's AMOLED display has superior contrast, deeper blacks, and vibrant colors; Realme 12x's LCD may look washed out in comparison.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1100 nits0 nitsXiaomi 12's superior brightness ensures great visibility under bright sunlight; Realme 12x's screen may be unreadable outdoors.
Performance
ChipsetSnapdragon 8 Gen 1 (4nm)Dimensity 6100+ (6nm)Xiaomi 12's chip delivers flagship-level performance, superior for gaming and heavy multitasking; Realme 12x is mid-range for everyday tasks.
AnTuTu Score1,150,831442,599Xiaomi 12 is significantly faster, leading to snappier performance in all tasks.
GPUAdreno 730Mali-G57 MC2Xiaomi 12 has a much more powerful GPU, crucial for demanding games and graphics-intensive applications; Realme 12x handles basic gaming well.
Camera
Main Camera50MP, f/1.8850MP, f/1.8Both have 50MP main sensors, with slightly wider aperture on Realme 12x; the Xiaomi 12's sensor and overall processing will offer superior image quality.
Selfie Camera32MP8MP, f/2.1Xiaomi 12's selfie camera is much higher resolution, likely capturing more detail.
Wide Angle Lens13MPNoXiaomi 12 offers a wide-angle lens for capturing expansive scenes.
Portrait Mode (depth)No2MP, f/2.4Realme 12x offers a portrait mode with a dedicated depth sensor.
Macro Lens5MPNoXiaomi 12 includes a dedicated macro lens for detailed close-up shots.
Video RecordingUp to 8K@24fpsUp to 1080p@30fpsXiaomi 12 offers far superior video recording capabilities, including 8K resolution.
Camera DXOMarkMobile: 113N/AXiaomi 12 has a tested, strong camera performance, while the Realme 12x is untested.
Battery Life
Capacity4500mAh5000mAhRealme 12x offers slightly better battery life due to the larger capacity.
Charging67W Fast Charging15W Fast ChargingXiaomi 12 charges much faster, reducing charging times.
Wireless Charging50W Fast wireless chargingNoXiaomi 12 supports wireless charging, for added convenience.

2. Key Insights

Xiaomi 12: The Performance Powerhouse

  • Strengths: The Xiaomi 12 is a clear winner in terms of raw performance, display quality, and camera capabilities. It boasts a flagship-level Snapdragon processor, a vibrant AMOLED display with high brightness, and superior camera hardware, making it ideal for demanding tasks, media consumption, and high-quality photography. The faster charging and wireless charging are a nice bonus.
  • Competitive Advantages: The combination of a high-resolution AMOLED display, a powerful Snapdragon processor, and comprehensive camera features, including 8K video recording, places it in a different league than the Realme 12x.
  • Trade-offs: The Xiaomi 12 has a smaller battery and is likely to be more expensive, and slightly thicker.

Realme 12x: The Budget-Friendly Option

  • Strengths: The Realme 12x is designed for budget-conscious users who need a reliable phone with a large screen and long battery life. Its large battery is a notable plus, and a 120Hz refresh rate makes basic navigation and scrolling feel smooth.
  • Competitive Advantages: The Realme 12x has the advantage of a lower price, and a newer Android version.
  • Trade-offs: The Realme 12x suffers from significantly lower resolution, brightness, and performance. Its camera capabilities are also notably more limited, and it lacks wireless charging.

3. User Profiles and Recommendations

Xiaomi 12 is Best For:

  • Power Users: Gamers, photographers, and users who perform heavy tasks (video editing, multitasking) on their phone will love the raw power and premium features.
  • Media Enthusiasts: The AMOLED display, stereo speakers with Dolby Atmos, and high video quality are perfect for watching movies and consuming high-quality content.
  • Photography Enthusiasts: The advanced camera system with a dedicated wide-angle and macro lens, 8K video recording, and superior low-light capabilities will appeal to those who prioritize mobile photography.

Realme 12x is Best For:

  • Budget-Conscious Buyers: Those who are looking for a reliable smartphone at an affordable price and aren't too demanding on performance or image quality.
  • Casual Users: Users who primarily use their phone for social media, browsing, and basic communication, and who value a large screen and long battery life.
  • Users Who Need Longer Battery Life: If your priority is to have a phone that can go a long time without needing to charge, the Realme 12x is a solid choice.

4. Buying Decision Framework

Here are three questions to help you decide:

  1. What's your primary use case?

    • If you prioritize performance, the Xiaomi 12 is the obvious choice.
    • If you need a budget-friendly phone for basic tasks and long battery, the Realme 12x fits the bill.
  2. How much does display quality matter?

    • If you want a vibrant, crisp, high-resolution display, the Xiaomi 12's AMOLED is superior.
    • If a larger screen size is more important than the display quality, the Realme 12x is worth considering.
  3. How much does camera performance matter?

    • If you plan on taking lots of high-quality photos and videos, the Xiaomi 12 is better equipped.
    • If you only need a camera for casual shots, the Realme 12x might suffice.

Scenario-Based Recommendations

  • Scenario 1: Gaming & Performance: For a superior gaming experience, the Xiaomi 12 is much better suited.
  • Scenario 2: Photography & Videography: The Xiaomi 12 is the obvious choice thanks to its advanced camera and 8K recording.
  • Scenario 3: Budget-Conscious User: If price is the biggest concern, then the Realme 12x makes more sense.
  • Scenario 4: Basic Usage and Battery Life: For simple everyday tasks and longer battery life, the Realme 12x is acceptable, but the Xiaomi 12 provides a better experience in every other regard.

My Choice:

If I were choosing between these two devices for myself, I would go with the Xiaomi 12. While I appreciate the budget-friendly approach of the Realme 12x, the Xiaomi 12 provides a vastly better user experience in almost every single metric. The significantly superior display, the raw power of the Snapdragon 8 Gen 1 chipset, and the much more capable camera are simply too good to pass up. The 12x would simply be a downgrade in far too many areas of importance to me, and I'm happy to pay for the superior performance and quality that Xiaomi is offering here.

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.