Xiaomi Redmi Note 12S vs Asus Zenfone 11 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date April 26, 2023 April 14, 2024
Release Year 2023 2024

Physical

Volume 95.71 cm³ 111.96 cm³
Screen Size to Weight Ratio 3.65 "/g 3.03 "/g
Weight 176 g 224 g
Height 159.9 mm 163.8 mm
Width 73.9 mm 76.8 mm
Thickness 8.1 mm 8.9 mm
Foldable Design No No
Available Colors
  • Ice Blue
  • Onyx Black
  • Pearl Green
  • Eternal Black
  • Skyline Blue
  • Misty Gray
  • Desert Sand

Display

Screen Size 6.43 " 6.78 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.5 % 88.2 %
Pixel Density 409 PPI 388 PPI
Refresh Rate 90 Hz 144 Hz
Typical Brightness N/A N/A
HBM Brightness 700 nits 1600 nits
Peak Brightness 1000 nits 2500 nits

Hardware

Battery Capacity per Screen Area 120.93 mAh/in² 119.65 mAh/in²
Battery Density 52.24 mAh/cm³ 49.12 mAh/cm³
Battery Capacity 5000 mAh 5500 mAh
NFC Support Yes Yes
Chipset Mediatek MT6781 Helio G96 (12 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU Mali-G57 MC2 Adreno 750

Connectivity

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

Software

Operating System Android Android
Initial OS Version 13 14
Maximum OS Version 16

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Redmi Note 12SAsus Zenfone 11 UltraPractical Impact
Design
Dimensions (mm)159.9 x 73.9 x 8.1163.8 x 76.8 x 8.9Zenfone 11 Ultra is larger and slightly thicker.
Weight (g)176224Redmi Note 12S is significantly lighter, more comfortable for one-handed use.
Display
Display TypeAMOLED, 90HzLTPO AMOLED, 144HzZenfone 11 Ultra has a smoother, more responsive display with variable refresh rate for power saving.
Display Size (inches)6.436.78Zenfone 11 Ultra offers a larger screen for media consumption.
Resolution1080 x 24001080 x 2400Identical resolution, but Zenfone's larger size results in slightly lower pixel density (less sharp).
Peak Brightness (nits)10002500Zenfone 11 Ultra is significantly brighter, ensuring better visibility outdoors.
HDRNoHDR10Zenfone 11 Ultra supports HDR content for a wider color range and better contrast in supported media.
Performance
ChipsetMediatek Helio G96 (12nm)Snapdragon 8 Gen 3 (4nm)Zenfone 11 Ultra boasts a vastly more powerful and efficient processor, enabling significantly better performance in demanding tasks and gaming.
CPUOcta-core (2x2.05 GHz A76 & 6x2.0 GHz A55)Octa-core (1x3.3 GHz X4 & 3x3.2 GHz A720 & 2x3.0 GHz A720 & 2x2.3 GHz A520)Zenfone 11 Ultra has a more modern and powerful CPU architecture, resulting in much faster processing speeds.
GPUMali-G57 MC2Adreno 750Zenfone 11 Ultra has a significantly more capable GPU for superior gaming and graphics performance.
RAM6GB/8GB12GB/16GBZenfone 11 Ultra offers more RAM, allowing for smoother multitasking and better handling of demanding applications.
Camera
Main Camera108MP50MPWhile Redmi has higher resolution, Zenfone uses a larger sensor (Sony IMX890) likely resulting in better low-light performance and overall image quality.
Video Recording1080p@30fps8K@24fpsZenfone 11 Ultra offers significantly higher resolution video recording capabilities.
Optical StabilizationNoYesZenfone 11 Ultra features optical image stabilization for steadier videos and sharper photos in low light.
Battery
Capacity5000 mAh5500 mAhZenfone 11 Ultra has a slightly larger battery capacity. However, real-world battery life depends on numerous factors including display, processor efficiency, and software optimization.

2. Key Differences Analysis

Xiaomi Redmi Note 12S Advantages:

  • Lighter and more compact: Easier for one-handed use and portability.
  • Lower price: Offers a more budget-friendly option.

Asus Zenfone 11 Ultra Advantages:

  • Significantly higher performance: Superior for demanding tasks, gaming, and future-proofing.
  • Better display: Smoother refresh rate, HDR support, and much higher brightness.
  • Superior camera system: Larger sensor, Optical Image Stabilization, and 8K video recording.
  • Larger battery: Potentially longer battery life.

3. User Profiles & Recommendations

Redmi Note 12S: Budget-conscious users who prioritize basic tasks like calling, texting, social media, and light web browsing.

Zenfone 11 Ultra: Users who demand high performance for gaming, content creation, or heavy multitasking. Also suitable for users who prioritize a premium display and camera experience.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The Redmi Note 12S is significantly cheaper.
  2. What are your primary use cases? For basic tasks, the Redmi might suffice. For demanding tasks or gaming, the Zenfone is essential.
  3. How important is display and camera quality? The Zenfone offers a significantly better experience in these areas.

My Choice: Asus Zenfone 11 Ultra

While the Redmi Note 12S offers good value for its price, the Zenfone 11 Ultra's superior performance, display, and camera system make it a much more compelling device for my needs. The Snapdragon 8 Gen 3, coupled with a high refresh rate LTPO AMOLED display, promises a significantly smoother and more responsive user experience. The improved camera system with OIS and 8K video recording capabilities is also a major draw. While the price difference is substantial, the Zenfone 11 Ultra offers a significant upgrade in almost every aspect, making it a worthwhile investment for a power user or someone who values a premium mobile experience. The improved longevity offered by the more powerful chipset also contributes to its long-term value.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

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