Asus Zenfone 9 vs Xiaomi Redmi Note 12 Pro 4G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date September 15, 2022 April 11, 2023
Release Year 2022 2023

Physical

Volume 90.79 cm³ 101.21 cm³
Screen Size to Weight Ratio 3.49 "/g 3.31 "/g
Weight 169 g 201.8 g
Height 146.5 mm 164.2 mm
Width 68.1 mm 76.1 mm
Thickness 9.1 mm 8.1 mm
Foldable Design No No
Available Colors
  • Midnight Black
  • Starry Blue
  • Moonlight White
  • Sunset Red
  • Polar White
  • Graphite Gray
  • Star Blue
  • Ice blue

Display

Screen Size 5.9 " 6.67 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.2 % 86 %
Pixel Density 445 PPI 395 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 700 nits
Peak Brightness 1100 nits 1100 nits

Hardware

Battery Capacity per Screen Area 123.53 mAh/in² 112.39 mAh/in²
Battery Density 47.36 mAh/cm³ 49.4 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) Qualcomm SM7150 Snapdragon 732G (8 nm)
CPU Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU Adreno 730 Adreno 618

Connectivity

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

Software

Operating System Android Android
Initial OS Version 12 11
Maximum OS Version 14

Comparison Summary

Alright, let's dive into a head-to-head comparison of the Asus Zenfone 9 and the Xiaomi Redmi Note 12 Pro 4G. These two phones approach the market from very different angles, so understanding their strengths is crucial to making the right choice.

1. Specifications Breakdown

Here's a detailed breakdown of the specifications, focusing on what they actually mean for day-to-day use:

FeatureAsus Zenfone 9Xiaomi Redmi Note 12 Pro 4GReal-World Implications
Design
Dimensions146.5 x 68.1 x 9.1 mm164.2 x 76.1 x 8.1 mmZenfone 9 is significantly more compact, better for one-handed use; Redmi Note 12 Pro 4G is larger, offering more screen real estate.
Weight169g201.8gZenfone 9 is noticeably lighter, enhancing comfort for extended use.
Build QualityGorilla Glass VictusGorilla Glass 5Zenfone 9 offers superior screen protection against scratches and drops.
Display
Size5.9"6.67"Redmi Note 12 Pro 4G provides a more immersive experience for media consumption and gaming.
Resolution1080x24001080x2400Both are sharp enough for everyday tasks.
Pixel Density445 PPI395 PPIZenfone 9 has a sharper, clearer display with noticeably better clarity.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks.
Refresh Rate120Hz120HzBoth provide smooth scrolling and animations.
Brightness1100 nits1200 nitsRedmi Note 12 Pro 4G is slightly better for outdoor visibility on sunny days.
Performance
ChipsetSnapdragon 8+ Gen 1Snapdragon 732GZenfone 9 offers much faster performance, handling demanding apps and games with ease.
AnTuTu Score1,232,500397,200Zenfone 9 has significantly higher performance for smooth app loading, heavy multitasking and gaming.
GPUAdreno 730Adreno 618Zenfone 9 has superior graphics performance for smoother gameplay.
Camera
Main Camera50MP, f/1.8, 1/1.56"108MP, f/1.9, 1/1.52"Redmi Note 12 Pro 4G captures high resolution photos; Zenfone 9 offers a larger sensor for better low-light performance.
Selfie Camera12MP, f/2.45, 1/2.93"16MP, f/2.45, 1/3.13"Redmi Note 12 Pro 4G takes higher resolution selfies; Zenfone 9 has a larger sensor for better clarity.
Wide Angle12MP, f/2.2, 1/2.55"8MP, f/2.2, 1/2.8"Zenfone 9's wide-angle camera is better for landscape photography; Redmi Note 12 Pro 4G has a dedicated ultrawide lens.
Other Lenses-2MP Depth, 5MP MacroRedmi Note 12 Pro 4G offers added versatility for portrait and macro photography.
VideoUp to 8K@24fps, OISUp to 4K@30fpsZenfone 9 provides higher resolution video recording with OIS for stable videos.
Battery Life
Capacity4300mAh5020mAhRedmi Note 12 Pro 4G has longer battery life for users needing all-day power.
Charging30W67WRedmi Note 12 Pro 4G has faster charging, so you can power up your phone quicker.
Software
OSAndroid 12 (upgradable to 14)Android 11Zenfone 9 has a more modern OS with potential future updates.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 5Zenfone 9 uses the latest Wi-Fi 6 for better speeds and efficiency
Bluetooth5.25.1Zenfone 9 has a newer Bluetooth for more reliable connectivity.
Storage & RAM
Internal Storage128/256 GB128/256 GBBoth have good storage options for apps and media.
RAM8/16 GB6/8 GBZenfone 9 has a higher maximum RAM for smoother multitasking.
Expandable StorageNoNoNeither supports expandable storage.
AudioHi-Res Audio, Stereo Speakers, 3 micsHi-Res Audio, Stereo SpeakersZenfone 9 has a higher quality audio setup that includes noise cancelling microphones.

2. Key Insights

Asus Zenfone 9:

  • Strengths: Its defining feature is its compact size, powerful processor, and high-quality camera system. It's ideal for users who value pocketability, top-tier performance, and solid image quality. The superior screen protection and excellent audio setup are notable bonuses.
  • Competitive Advantages: Its flagship-level Snapdragon 8+ Gen 1 chipset gives it a significant performance edge over the Redmi Note 12 Pro 4G. The high-pixel density display offers superior sharpness. The inclusion of a gimbal for camera stabilization is also a unique feature.
  • Trade-offs: It sacrifices a larger screen and a very slight edge in battery size for its smaller form factor, and it is definitely in a higher price category.

Xiaomi Redmi Note 12 Pro 4G:

  • Strengths: It shines with its large display, long battery life, and fast charging. Its versatile camera array with multiple lenses is a great plus.
  • Competitive Advantages: The phone has a more affordable price point, especially given its large screen and fast charging capabilities. It's a great option for those who prioritize screen size and long battery life.
  • Trade-offs: It lags behind the Zenfone 9 in terms of raw performance and display sharpness, though it will still handle most tasks well. The Snapdragon 732G is a less powerful chipset, and it is still using Android 11.

3. User Profiles and Recommendations

Asus Zenfone 9:

  • Best Suited For: Tech enthusiasts, gamers, and anyone who values top-tier performance in a pocketable form. It is ideal for users who want a premium, high-performance experience and don't need a huge screen.
  • Use Cases: Gaming, photo and video editing on the go, users who need top-tier performance, mobile professionals, and anyone who uses their phone heavily.
  • Price-to-Value: A premium price for a premium experience. The smaller form factor and superior performance come at a cost.

Xiaomi Redmi Note 12 Pro 4G:

  • Best Suited For: Budget-conscious users who want a large screen and long battery life. It's perfect for media consumption, casual gaming, and everyday tasks.
  • Use Cases: Media consumption, social media browsing, casual gaming, everyday photography, and users who need a reliable all-day battery.
  • Price-to-Value: Excellent value for money, especially for a big-screen phone with good battery life. It is a great option for users who don't need top-tier performance.

4. Buying Decision Framework

Here are three practical questions to help you decide:

  1. What’s more important to me: raw performance or screen size?
    • If raw power is key choose the Zenfone 9.
    • If a large screen is essential, go for the Redmi Note 12 Pro 4G.
  2. How important is portability and one handed use to me?
    • If you want pocketability and one handed use choose the Zenfone 9.
    • If you want a larger screen for viewing go for the Redmi Note 12 Pro 4G.
  3. What’s my budget and what’s my use case?
    • If you are willing to spend more for a premium experience, then the Zenfone 9.
    • If you are on a tighter budget and want a reliable phone, then the Redmi Note 12 Pro 4G.

Scenario-Based Recommendations:

  • The Gamer: If you’re looking for top-tier gaming performance, the Zenfone 9 is the clear winner thanks to its superior chipset and graphics, in addition to its smaller form factor that helps with heat.
  • The Media Consumer: If you watch a lot of videos, the Redmi Note 12 Pro 4G is the better choice. The larger screen and long battery life make it perfect for immersive viewing sessions.
  • The On-the-Go Professional: If you need a high-performance device that’s also compact and easily pocketable, the Zenfone 9 is the ideal choice. The added benefit of superior audio recording will help with important conference calls on the go.
  • The Budget-Conscious User: The Redmi Note 12 Pro 4G is the more affordable option, offering a great overall experience without breaking the bank.

My Choice and Why

If I were making this decision for myself, I would choose the Asus Zenfone 9. The primary reason is the sheer performance advantage it offers. As someone who uses their phone for a lot of gaming, having the Snapdragon 8+ Gen 1 chipset is essential for a smooth experience. While the Redmi Note 12 Pro 4G is a solid device in its own right, the performance gap is just too large to ignore for a power user. Additionally, the smaller form factor of the Zenfone 9 is a huge advantage for one-handed use, and the high quality sound and screen are significant bonuses. While the price is a considerable increase, the performance increase along with the unique features justify the cost for someone like myself.

Ultimately, the best choice depends entirely on your specific needs and budget. Both phones offer strong features and cater to different user preferences. I hope this in-depth analysis has provided you with the information you need to make the right choice for you!

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.