Xiaomi 12 vs Realme 9 - Detailed Phone Comparison

Detailed Comparison

Specification
Xiaomi 12
Xiaomi 12
Xiaomi
Realme 9
Realme 9
Realme

General

Launch Date December 31, 2021 April 12, 2022
Release Year 2021 2022

Physical

Volume 87.52 cm³ 93.94 cm³
Screen Size to Weight Ratio 3.51 "/g 3.6 "/g
Weight 179 g 178 g
Height 152.7 mm 160.2 mm
Width 69.9 mm 73.3 mm
Thickness 8.2 mm 8 mm
Foldable Design No No
Available Colors
  • Blue
  • Green
  • Purple
  • Gray
  • Meteor Black
  • Sunburst Gold
  • Stargaze White

Display

Screen Size 6.28 " 6.4 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.2 % 84.2 %
Pixel Density 419 PPI 411 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A 430 nits
HBM Brightness N/A N/A
Peak Brightness 1100 nits 1000 nits

Hardware

Battery Capacity per Screen Area 114.10 mAh/in² 122.07 mAh/in²
Battery Density 51.41 mAh/cm³ 53.22 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes No
Chipset Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm) Qualcomm SM6225 Snapdragon 680 4G (6 nm)
CPU Octa-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
GPU Adreno 730 Adreno 610

Connectivity

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

Software

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

Comparison Summary

Alright, let's dive deep into the Xiaomi 12 and Realme 9. These two phones, while both aiming for the mid-range market, have very different approaches and target different user needs. Here's a breakdown:

1. Specifications Breakdown

Okay, let’s get down to the nitty-gritty. Here’s a head-to-head look at the specs, and more importantly, what they mean for your daily usage:

FeatureXiaomi 12Realme 9Real-World Implications
Design
Launch Date2021-12-312022-04-12Realme 9 is slightly newer, which might mean better software support lifespan.
Form FactorStandardStandardBoth are classic slab-style smartphones.
Dimensions152.7 x 69.9 x 8.2 mm160.2 x 73.3 x 8 mmXiaomi 12 is noticeably more compact and pocketable, Realme 9 is larger.
Weight179g178gBoth feel light and comfortable to hold.
Display
Size6.28"6.4"Realme 9 offers a slightly more expansive viewing experience, not by much though.
Resolution1080x24001080x2400Both offer crisp, detailed visuals, indistinguishable to the naked eye.
Pixel Density419 PPI411 PPIBoth are sharp, with minimal difference.
TechnologyAMOLEDAMOLEDExpect vibrant colors, deep blacks, and excellent contrast on both.
Refresh Rate120Hz90HzXiaomi 12 will feel smoother when scrolling and gaming.
Brightness1100 nits1000 nitsXiaomi 12 is better equipped for direct sunlight viewing, albeit only slightly.
Performance
ChipsetSnapdragon 8 Gen 1 (4 nm)Snapdragon 680 4G (6 nm)Xiaomi 12 is drastically more powerful; handles demanding games and apps with ease, Realme 9 is more geared towards moderate use.
AnTuTu Score1,150,831216,850Xiaomi 12 is significantly faster, more responsive, and future proof.
GPUAdreno 730Adreno 610Xiaomi 12 has a much more capable graphics chip, better for gaming and graphics tasks.
Battery Life
Capacity4500 mAh5000 mAhRealme 9 will likely last longer on a single charge due to the bigger battery.
Charging67W Fast Charging, Li-Polymer33W Fast Charging, Li-IonXiaomi 12 charges much faster; its Li-Polymer tech tends to have longer lifespan too.
Battery Features50W Wireless, 10W ReverseReverse ChargingXiaomi 12 offers more charging flexibility with wireless and faster reverse charging.
Camera
Main Camera50MP, f/1.88, 1/1.56", IMX766108MP, f/1.75, 1/1.67", HM6Realme 9 captures more detail in well-lit conditions, but Xiaomi's sensor might handle low light better.
Selfie Camera32MP, 1/3.14", JD116MP, f/2.45, 1/3.13", IMX471Xiaomi 12 captures more detailed selfies.
Wide Angle13MP, f/2.48MP, f/2.2, 1/4", OV08D10Xiaomi 12 offers slightly higher detail, but Realme has a wider aperture in this case.
Macro Lens5MP, f/2.42MP, f/2.4, 1/5", GC02M1Xiaomi 12 offers higher resolution macro shots, but it's not much better.
VideoUp to 8K@24fps, EIS, HDRUp to 1080p@30fpsXiaomi 12 offers far superior video recording capabilities, including stabilization.
DxOMark113 Main ScoreNot testedXiaomi 12 is a more capable camera overall.
Software & Connectivity
OSAndroid 12Android 12Both have similar starting software.
WiFiWiFi 6Wi-Fi 5Xiaomi 12 offers faster Wi-Fi speeds in compatible networks and has MIMO.
Bluetooth5.2 LE5.1Xiaomi 12 has a newer version, offering better power efficiency and audio capabilities.
GPSMulti-System GPSBasic GPSXiaomi 12 is more precise with its location services due to multiple satellite systems.
SIMDual Nano SIMDual Nano SIMBoth support dual SIM functionality.
Storage
Internal128GB or 256GB128GBXiaomi 12 offers more storage (up to 256GB), important since neither phone has expandable storage.
RAM8GB or 12GB6GB or 8GBXiaomi 12 has more RAM (12GB variant), meaning smoother multitasking and better gaming.
ExpandableNoNoNeither allows for expandable storage.
Audio & Security
Audio QualityDolby Atmos, Stereo Speakers, Hi-Res AudioHi-Res AudioXiaomi 12 provides a richer audio experience with Dolby Atmos and stereo speakers.
SecurityBasic Fingerprint SensorBasic Fingerprint SensorBasic biometric security provided on both devices.
Build Quality & Sensors
Screen ProtectionGorilla Glass VictusGorilla Glass 5Xiaomi 12's screen is more scratch and damage resistant.
SensorsUltrasonic Proximity, Compass, Gyroscope, AccelerometerProximity, Gyroscope, AccelerometerXiaomi 12 has a larger sensor suite, enabling some more advanced features.

2. Key Insights

  • Xiaomi 12: The Powerhouse

    • Strengths: Its biggest advantage is raw performance thanks to the Snapdragon 8 Gen 1, which means a smoother experience in almost every task. Add to that faster charging, better screen, superior camera, and better audio, and we have a device that screams premium.
    • Advantages: Best-in-class performance, top-tier camera capabilities, richer audio with Dolby Atmos, a smoother 120Hz display, and overall faster everything.
    • Trade-offs: The battery is slightly smaller, but charging is incredibly fast, so it balances out. The price is also higher, which can be a hurdle.
  • Realme 9: The Budget-Conscious Contender

    • Strengths: A larger battery for longer battery life, a decent camera for everyday shots, and a lower price point make this phone appealing if you don't need peak performance.
    • Advantages: Very good battery life and lower price are it's biggest wins.
    • Trade-offs: Noticeably weaker performance, a lower refresh display, slower charging, and a less robust camera system, a phone that needs compromises in order to be cheap.

3. User Profiles and Recommendations

  • Xiaomi 12:

    • Best for: Power users, gamers, photographers, and videographers who need a powerful device that performs well in demanding situations.
    • Use Cases: Playing graphics-intensive games, editing 4K videos, capturing stunning photos in low light, and multitasking with resource-intensive apps.
    • Recommendation: If budget allows, this is the clear winner. It offers a premium experience across the board.
  • Realme 9:

    • Best for: Casual users, those who prioritize battery life over raw performance, and those who need a functional phone at a lower price.
    • Use Cases: Browsing social media, sending emails, streaming videos, taking casual photos, and playing less-demanding games.
    • Recommendation: If budget is a primary concern and you don’t need top-tier performance, this phone is a good option.

4. Buying Decision Framework

Here are three questions to ask yourself when deciding between these phones:

  1. Performance Needs: Do you require high-end performance for gaming or heavy multitasking?

    • If yes, the Xiaomi 12 is the better choice.
    • If no, the Realme 9 is sufficient for everyday tasks.
  2. Camera Priority: Do you frequently take photos and videos, and do you need a versatile and high-quality system?

    • If yes, the Xiaomi 12 is the clear winner with its superior camera specs and video capabilities.
    • If no, the camera on the Realme 9 can handle average daily shots well enough.
  3. Budget Constraints: Are you on a tight budget, or are you willing to spend more for better features?

    • If on a tight budget, the Realme 9 is the more affordable option.
    • If you're willing to invest, the Xiaomi 12 offers more value for performance and features.

Scenario-Based Recommendations:

  • The Mobile Gamer: If you want to game, the Xiaomi 12 is the only choice.
  • The On-the-Go Photographer/Videographer: Xiaomi 12 provides a better camera system for photos and videos.
  • The Power User: If you frequently multitask and need responsive performance, the Xiaomi 12 is the better option.
  • The Budget-Conscious Buyer: If you need a decent phone that lasts all day, the Realme 9 is the more affordable choice.
  • The Average User: If you use your phone for basic social media and messaging, then either of these will work, but the Realme 9 will be a bit cheaper.

Personal Choice:

If I had to choose one, it would be the Xiaomi 12. While I appreciate the Realme 9's budget-friendliness and excellent battery life, my personal use-case requires the power and versatility that the Xiaomi 12 provides. As someone who enjoys mobile gaming, appreciates a good camera, and needs quick charging for my on-the-go lifestyle, the Xiaomi 12 fits the bill perfectly. While it's pricier, the value it offers, in terms of raw performance, screen quality, and camera capabilities, makes it the more future-proof and complete package for my needs.

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.