Xiaomi Redmi A2 vs Samsung Galaxy M15 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date March 24, 2023 April 5, 2024
Release Year 2023 2024

Physical

Volume 115.25 cm³ 114.35 cm³
Screen Size to Weight Ratio 3.4 "/g 3 "/g
Weight 192 g 217 g
Height 164.9 mm 160.1 mm
Width 76.8 mm 76.8 mm
Thickness 9.1 mm 9.3 mm
Foldable Design No No
Available Colors
  • Aqua Blue
  • Classic Black
  • Sea Green
  • Gray
  • Light Blue
  • Dark Blue

Display

Screen Size 6.52 " 6.5 "
Resolution 720 x 1600 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 81 % 84.3 %
Pixel Density 269 PPI 396 PPI
Refresh Rate N/A 90 Hz
Typical Brightness 400 nits N/A
HBM Brightness N/A 800 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 117.62 mAh/in² 142.01 mAh/in²
Battery Density 43.39 mAh/cm³ 52.47 mAh/cm³
Battery Capacity 5000 mAh 6000 mAh
NFC Support No Yes
Chipset Mediatek Helio G36 (12 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU PowerVR GE8320 Mali-G57 MC2

Connectivity

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

Software

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

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Redmi A2Samsung Galaxy M15Practical Impact
Design
Dimensions (mm)164.9 x 76.8 x 9.1160.1 x 76.8 x 9.3Negligible size difference; both are large phones.
Weight (g)192217Redmi A2 is noticeably lighter, improving one-handed use.
BuildNot specifiedNot specifiedBuild quality impact unknown due to lack of information.
Display
Display TypeIPS LCDSuper AMOLEDSamsung offers vibrant colors, deeper blacks, and better outdoor visibility.
Size (inches)6.526.5Virtually identical screen sizes.
Resolution720 x 16001080 x 2340Galaxy M15 has significantly sharper visuals due to higher resolution (HD+ vs. FHD+).
Refresh RateNot specified90HzM15's 90Hz offers smoother scrolling and animations.
Performance
ChipsetMediatek Helio G36 (12nm)Mediatek Dimensity 6100+ (6nm)M15 offers significantly better performance and efficiency due to a newer and more powerful chipset.
CPUOcta-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)M15's CPU architecture is superior, resulting in faster app loading, smoother multitasking, and better gaming performance.
GPUPowerVR GE8320Mali-G57 MC2M15 will handle graphically demanding tasks and games much better.
RAM2/3GB4/6GBM15 offers more RAM, enabling better multitasking and preventing app closures in the background.
Camera
Rear Camera8MP Main, 0.3MP Auxiliary50MP Main, 5MP Wide, 2MP MacroM15 offers significantly better image quality and versatility with its triple-camera setup and higher resolution main sensor.
Front Camera5MP13MPM15 provides higher resolution selfies.
Video Recording1080p@30fps1080p@30fps with EISBoth record at 1080p; M15 includes Electronic Image Stabilization (EIS) for smoother videos.
Battery
Capacity5000 mAh6000 mAhM15 offers longer battery life.
Charging10W Fast Charging25W Fast ChargingM15 charges significantly faster.
Other
NFCNoYesM15 allows for contactless payments and data transfer.
OSAndroid 12Android 14M15 ships with a newer Android version, offering potential feature and security advantages.
Price RangeLowMediumRedmi A2 is significantly cheaper.

2. Key Differences Analysis

Xiaomi Redmi A2 Advantages:

  • Lower Price: Significantly more affordable.
  • Lighter Weight: Easier to hold and use for extended periods.

Samsung Galaxy M15 Advantages:

  • Superior Performance: Much faster processor, GPU, and more RAM for smooth multitasking and gaming.
  • Better Display: Higher resolution AMOLED screen with a 90Hz refresh rate provides a vastly improved visual experience.
  • Enhanced Camera: Versatile triple camera system with a higher resolution main sensor and EIS for video recording.
  • Larger Battery and Faster Charging: Longer battery life and significantly faster charging speeds.
  • NFC: Enables contactless payments.
  • Newer Android Version: Offers potential feature and security advantages.

3. User Profiles & Recommendations

Xiaomi Redmi A2: Budget-conscious users who prioritize basic communication (calls, texts, browsing) and light app usage. Ideal for users who are not concerned with high performance or advanced features.

Samsung Galaxy M15: Users who want a well-rounded smartphone with good performance, a great display, a decent camera, long battery life, and modern features like NFC. Suitable for gaming, media consumption, multitasking, and mobile photography.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The Redmi A2 is a budget option, while the M15 is a mid-range device.
  2. What are your primary smartphone uses? Basic communication vs. gaming, photography, multitasking.
  3. Which features are most important to you? Performance, display quality, camera, battery life, NFC.

Scenario-Based Recommendations:

  • Tight Budget, Basic Usage: Redmi A2
  • Balanced Performance and Features: Galaxy M15

My Choice: Samsung Galaxy M15

While the Redmi A2 is appealing for its low price, the Galaxy M15 offers a significantly better overall user experience. The superior performance, display, camera, battery life, NFC functionality, and newer Android version make it a much more versatile and future-proof device. The price difference is justified by the substantial improvements in key areas that impact daily usage. The 90Hz refresh rate alone drastically improves the feel of the phone, making it more enjoyable to use. While I acknowledge the importance of budget considerations, the M15's advantages outweigh the higher cost for most users.

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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Bridging technical complexity with engaging, accessible narratives.