Apple iPhone 15 vs Xiaomi Redmi A3x - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date September 22, 2023 May 24, 2024
Release Year 2023 2024

Physical

Volume 82.43 cm³ 106.65 cm³
Screen Size to Weight Ratio 3.57 "/g 3.48 "/g
Weight 171 g 193 g
Height 147.6 mm 168.4 mm
Width 71.6 mm 76.3 mm
Thickness 7.8 mm 8.3 mm
Foldable Design No No
Available Colors
  • Black
  • Yellow
  • Blue
  • Green
  • Pink
  • Midnight Black
  • Olive Green
  • Moonlight White (Starry White)
  • Aurora Green (Ocean Green)

Display

Screen Size 6.1 " 6.71 "
Resolution 1179 x 2556 720 x 1650
Aspect Ratio 19.5:9 21:9
Screen-to-Body Ratio 86.4 % 82.9 %
Pixel Density 461 PPI 268 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A 500 nits
HBM Brightness 1000 nits N/A
Peak Brightness 2000 nits N/A

Hardware

Battery Capacity per Screen Area 90.00 mAh/in² 111.05 mAh/in²
Battery Density 40.63 mAh/cm³ 46.88 mAh/cm³
Battery Capacity 3349 mAh 5000 mAh
NFC Support Yes No
Chipset Apple A16 Bionic (4 nm) Unisoc T603 (22 nm)
CPU Hexa-core (2x3.46 GHz Everest + 4x2.02 GHz Sawtooth) Octa-core 1.8 GHz
GPU Apple GPU (5-core graphics) 8

Connectivity

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

Software

Operating System iOS Android
Initial OS Version 17 14
Maximum OS Version 18 16

Comparison Summary

1. Specifications Comparison

FeatureApple iPhone 15Xiaomi Redmi A3xPractical Impact
Design
Dimensions147.6 x 71.6 x 7.8 mm168.4 x 76.3 x 8.3 mmiPhone 15 is significantly smaller and more pocketable. Redmi A3x is larger, potentially better for media consumption but less comfortable for one-handed use.
Weight171g193giPhone 15 is noticeably lighter, reducing hand fatigue during extended use.
BuildNot specifiedNot specifiedBuild quality and materials impact durability and premium feel. This information is missing for both.
Display
Size6.1"6.71"Redmi A3x offers a larger screen for more immersive media consumption and multitasking. iPhone 15 is more compact.
TypeSuper Retina XDR OLEDIPS LCDiPhone 15's OLED offers superior contrast, deeper blacks, and richer colors. Redmi A3x's IPS LCD is less vibrant and has narrower viewing angles.
Resolution1179 x 2556720 x 1650iPhone 15 has a much sharper display with higher pixel density (461 ppi vs 268 ppi), resulting in crisper text and images.
Refresh RateNot Specified90HzA higher refresh rate on the Redmi A3x makes scrolling and animations smoother. Lack of information for iPhone 15 prevents direct comparison, although most modern iPhones operate at 60Hz or 120Hz.
Peak Brightness2000 nitsNot SpecifiediPhone 15's significantly higher peak brightness ensures excellent outdoor visibility. Lack of data for the Redmi A3x limits comparison but suggests likely inferior sunlight readability.
Performance
ChipsetApple A16 Bionic (4 nm)Unisoc T603 (22 nm)A16 is a flagship-level chip, significantly more powerful than the budget-oriented Unisoc T603. Expect vastly superior performance in demanding tasks and gaming on the iPhone 15.
CPUHexa-core (2x3.46 GHz + 4x2.02 GHz)Octa-core 1.8 GHziPhone 15's CPU boasts higher clock speeds and superior architecture, translating to much faster processing.
GPUApple GPU (5-core)8iPhone 15's GPU is expected to provide significantly better graphics performance for gaming and graphically intensive applications. Lack of detailed specs for Redmi A3x's GPU hinders in-depth comparison.
RAM6GB4GBiPhone 15's larger RAM allows for smoother multitasking and better performance with multiple apps open.
Storage256GB/512GB128GBiPhone 15 offers more storage options for users with large media libraries or who install many apps.
Battery
Capacity3349 mAh5000 mAhRedmi A3x has a significantly larger battery capacity, suggesting potentially longer battery life. However, real-world battery life depends on many factors, including software optimization and display efficiency.
Other
OSiOS 17Android 14Different operating systems cater to different user preferences. iOS is known for its simplicity and tight integration, while Android offers more customization options.
NFCTrueFalseiPhone 15 supports contactless payments and data transfer via NFC, while Redmi A3x does not.
Price RangeMediumLowRedmi A3x is significantly more affordable. iPhone 15 commands a premium price for its advanced features and performance.

2. Key Differences Analysis

iPhone 15 Advantages:

  • Significantly higher performance: The A16 Bionic chip provides a massive performance advantage for demanding tasks and gaming.
  • Superior display: OLED technology delivers richer colors, deeper blacks, and better outdoor visibility. Higher resolution provides sharper visuals.
  • Premium build (likely): While unspecified, iPhones generally feature higher quality build materials.
  • More advanced features: NFC for contactless payments, likely better camera capabilities (details not provided for comparison).

Redmi A3x Advantages:

  • Larger battery: Potentially longer battery life.
  • Larger display: More immersive experience for media consumption.
  • Lower price: Significantly more affordable.
  • Higher refresh rate display: Smoother scrolling and animations.

3. User Profiles & Recommendations

iPhone 15: Users who prioritize performance, premium design, a vibrant display, and a seamless user experience. Ideal for demanding tasks, gaming, content creation, and users who value the Apple ecosystem.

Redmi A3x: Budget-conscious users who prioritize battery life and a large screen for media consumption. Suitable for basic tasks like browsing, social media, and casual gaming. Not recommended for demanding users or those who require top-tier performance.

4. Decision Framework

Key Questions:

  1. What is your budget? The price difference is substantial.
  2. What are your primary use cases? Demanding tasks vs. basic usage.
  3. Which operating system do you prefer? iOS vs. Android.

Scenario-Based Recommendations:

  • Limited budget, basic usage: Redmi A3x
  • Prioritize performance and premium experience: iPhone 15
  • Heavy gamer or content creator: iPhone 15
  • Value battery life above all else: Redmi A3x (with the caveat that real-world battery performance is not guaranteed based on specs alone)

My Choice: Apple iPhone 15

While significantly more expensive, the iPhone 15 offers a substantial leap in performance, display quality, and overall user experience. The A16 Bionic chip, superior display, and expected premium build are compelling advantages. The Redmi A3x, while offering a larger battery and display, compromises heavily on performance and other features. For my needs, which likely include demanding tasks, a smooth and responsive experience, and a high-quality display, the iPhone 15 is the clear winner. The premium price is justified by the significant performance and feature advantages it offers.

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.