Xiaomi Redmi A2 vs Asus Zenfone 11 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date March 24, 2023 April 14, 2024
Release Year 2023 2024

Physical

Volume 115.25 cm³ 111.96 cm³
Screen Size to Weight Ratio 3.4 "/g 3.03 "/g
Weight 192 g 224 g
Height 164.9 mm 163.8 mm
Width 76.8 mm 76.8 mm
Thickness 9.1 mm 8.9 mm
Foldable Design No No
Available Colors
  • Aqua Blue
  • Classic Black
  • Sea Green
  • Eternal Black
  • Skyline Blue
  • Misty Gray
  • Desert Sand

Display

Screen Size 6.52 " 6.78 "
Resolution 720 x 1600 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81 % 88.2 %
Pixel Density 269 PPI 388 PPI
Refresh Rate N/A 144 Hz
Typical Brightness 400 nits N/A
HBM Brightness N/A 1600 nits
Peak Brightness N/A 2500 nits

Hardware

Battery Capacity per Screen Area 117.62 mAh/in² 119.65 mAh/in²
Battery Density 43.39 mAh/cm³ 49.12 mAh/cm³
Battery Capacity 5000 mAh 5500 mAh
NFC Support No Yes
Chipset Mediatek Helio G36 (12 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU PowerVR GE8320 Adreno 750

Connectivity

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

Software

Operating System Android Android
Initial OS Version 12 14
Maximum OS Version 16

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Redmi A2Asus Zenfone 11 UltraPractical Impact
Design
Dimensions (mm)164.9 x 76.8 x 9.1163.8 x 76.8 x 8.9Zenfone 11 Ultra is slightly shorter and thinner. Negligible difference in daily use.
Weight (g)192224Redmi A2 is significantly lighter, more comfortable for extended use.
BuildUnspecifiedUnspecifiedMaterial differences could impact durability and premium feel; information lacking.
Display
Size (inches)6.526.78Zenfone 11 Ultra offers a larger screen for more immersive content consumption.
Resolution (px)720 x 16001080 x 2400Zenfone 11 Ultra has a much sharper display, noticeable in text clarity and image detail.
Panel TypeIPS LCDLTPO AMOLEDZenfone 11 Ultra's AMOLED offers deeper blacks, vibrant colors, and potentially better battery efficiency due to per-pixel illumination. LTPO allows for variable refresh rate, saving power.
Refresh Rate (Hz)Unspecified144Zenfone 11 Ultra's high refresh rate will result in significantly smoother animations and scrolling.
Peak Brightness400 nits (typ)2500 nits (peak)Zenfone 11 Ultra will be far more readable in direct sunlight.
Performance
ChipsetMediatek Helio G36 (12 nm)Qualcomm Snapdragon 8 Gen 3 (4 nm)Zenfone 11 Ultra boasts a vastly more powerful processor, enabling significantly faster performance in demanding tasks and gaming.
CPUOcta-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)Zenfone 11 Ultra's CPU architecture is much more modern and powerful.
GPUPowerVR GE8320Adreno 750Zenfone 11 Ultra offers drastically better graphics performance for gaming and visually intensive applications.
RAM2/3 GB12/16 GBZenfone 11 Ultra has significantly more RAM, allowing for seamless multitasking and smooth performance with many apps open.
Camera
Rear Camera8 MP + 0.3 MP50 MP (Sony IMX890) + 13 MP + 32 MPZenfone 11 Ultra offers a higher resolution main sensor with a larger sensor size, potentially capturing more detail and light, along with versatile ultrawide and telephoto lenses.
Front Camera5 MP32 MPZenfone 11 Ultra has a much higher resolution front camera for better selfies.
Video Recording1080p@30fps8K@24fpsZenfone 11 Ultra supports significantly higher resolution video recording.
Battery
Capacity (mAh)50005500Both offer large batteries, but Zenfone 11 Ultra's slightly larger capacity may provide longer battery life.
Charging10W65WZenfone 11 Ultra supports significantly faster charging, minimizing downtime.

2. Key Differences Analysis

Xiaomi Redmi A2 Advantages:

  • Lighter and potentially more affordable: Significantly lighter weight improves one-handed use and portability. Expected to be much cheaper.

Asus Zenfone 11 Ultra Advantages:

  • Superior performance: Significantly faster processor, GPU, and more RAM for demanding tasks, gaming, and multitasking.
  • High-quality display: Sharper, brighter AMOLED display with a higher refresh rate for a dramatically improved visual experience.
  • Advanced camera system: Higher resolution sensors, versatile lens options (ultrawide, telephoto), and 8K video recording capabilities.
  • Faster Charging: Significantly faster charging speeds reduce downtime.

3. User Profiles & Recommendations

Xiaomi Redmi A2: Budget-conscious users who prioritize basic communication (calls, texts, social media) and light web browsing. Ideal for users who prioritize affordability and battery life over performance and advanced features.

Asus Zenfone 11 Ultra: Users who demand top-tier performance, a premium display, and advanced camera capabilities. Ideal for power users, gamers, content creators, and those who value a flagship experience.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The Redmi A2 is a budget phone, while the Zenfone 11 Ultra is a premium device.
  2. What are your primary smartphone usage patterns? Basic communication vs. demanding tasks, gaming, content creation.
  3. How important are display quality, camera capabilities, and overall performance?

Scenario-Based Recommendations:

  • Limited budget, basic usage: Redmi A2
  • Balanced budget, moderate usage: Consider mid-range alternatives not listed here.
  • High budget, demanding usage, premium experience: Zenfone 11 Ultra

My Choice: Asus Zenfone 11 Ultra

While the Redmi A2 offers excellent value for its price, I would choose the Asus Zenfone 11 Ultra. The significantly improved performance, superior display, versatile camera system, and faster charging outweigh the higher price and added weight for my needs. I prioritize a smooth, responsive user experience, high-quality visuals, and the ability to handle demanding tasks and gaming. The Zenfone 11 Ultra delivers on all fronts, offering a future-proof device that will likely remain relevant for several years. The Redmi A2, while perfectly adequate for basic use, would likely feel limiting in the long run.

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.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.