Samsung Galaxy A15 vs Xiaomi Redmi A3 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date December 16, 2023 February 23, 2024
Release Year 2023 2024

Physical

Volume 103.28 cm³ 106.58 cm³
Screen Size to Weight Ratio 3.25 "/g 3.48 "/g
Weight 200 g 193 g
Height 160.1 mm 168.3 mm
Width 76.8 mm 76.3 mm
Thickness 8.4 mm 8.3 mm
Foldable Design No No
Available Colors
  • Brave Black
  • Optimistic Blue
  • Magical Blue
  • Personality Yellow
  • Midnight Black
  • Forest Green (Olive Green)
  • Star Blue (Lake Blue)

Display

Screen Size 6.5 " 6.71 "
Resolution 1080 x 2340 720 x 1650
Aspect Ratio 19.5:9 21:9
Screen-to-Body Ratio 84.3 % 82.9 %
Pixel Density 396 PPI 268 PPI
Refresh Rate 90 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness 800 nits 500 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 111.05 mAh/in²
Battery Density 48.41 mAh/cm³ 46.91 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Helio G99 (6 nm) Mediatek Helio G36 (12 nm)
CPU Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (4x2.2 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
GPU Mali-G57 MC2 PowerVR GE8320

Connectivity

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

Software

Operating System Android Android
Initial OS Version 14 14
Maximum OS Version 17

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A15Xiaomi Redmi A3Practical Impact
Design
Dimensions160.1 x 76.8 x 8.4 mm168.3 x 76.3 x 8.3 mmThe Redmi A3 is slightly taller and narrower. Negligible difference in thickness.
Weight200g193gThe Redmi A3 is slightly lighter, but the difference is minimal in practical use.
Display
Display TypeSuper AMOLED, 90HzIPS LCD, 90HzThe A15's AMOLED display offers significantly better contrast, deeper blacks, and more vibrant colors.
Size6.5"6.71"The Redmi A3 has a slightly larger screen, providing more screen real estate.
Resolution1080 x 2340720 x 1650The A15 has a much sharper display due to its higher resolution. Text and images will appear crisper. The Redmi A3's lower resolution might result in pixelation.
Refresh Rate90Hz90HzBoth offer smooth scrolling and animations thanks to the 90Hz refresh rate.
Brightness (HBM)800 nits500 nitsThe A15 should be significantly more visible in direct sunlight due to its higher peak brightness.
Performance
ChipsetMediatek Helio G99 (6nm)Mediatek Helio G36 (12nm)The Helio G99 in the A15 is significantly more powerful and efficient due to its smaller manufacturing process. This translates to better gaming performance, smoother multitasking, and longer battery life.
CPUOcta-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (8x Cortex-A53)The A15 has a more powerful CPU architecture with performance cores (Cortex-A76), enabling faster processing for demanding tasks.
GPUMali-G57 MC2PowerVR GE8320The A15's GPU is considerably more powerful, leading to better gaming performance and smoother graphics rendering.
RAM/Storage128GB/6GB, 128GB/8GB, 256GB/8GB128GB/4GB, 128GB/6GBThe A15 offers more RAM options, beneficial for multitasking and demanding applications.
Battery
Capacity5000 mAh5000 mAhBoth have the same battery capacity, but the A15's more efficient chipset likely results in longer battery life.
Other
OSAndroid 14Android 14Both phones run on the latest Android version. However, the "os_max_version" is unspecified for the Redmi A3, indicating uncertainty about future software updates.
NFCYesYesBoth support contactless payments.
USBUSB Type-C 2.0USB Type-C 2.0Standard charging and data transfer port on both.

2. Key Differences Analysis

Samsung Galaxy A15 Advantages:

  • Significantly better display: AMOLED technology, higher resolution, and brighter screen offer a superior visual experience.
  • Much more powerful performance: The Helio G99 chipset and superior CPU/GPU provide significantly better performance for gaming, multitasking, and demanding applications.
  • Likely better battery life: More efficient chipset.
  • More RAM options: Better for multitasking and future-proofing.

Xiaomi Redmi A3 Advantages:

  • Slightly larger display: More screen real estate for content consumption.
  • Slightly lighter: Marginally easier to hold for extended periods.
  • Lower price: The Redmi A3 is positioned in the "low price" range.

3. User Profiles & Recommendations

Samsung Galaxy A15: Users who prioritize display quality, performance, and overall user experience. Suitable for gaming, media consumption, and demanding tasks.

Xiaomi Redmi A3: Budget-conscious users who primarily use their phones for basic tasks like calling, texting, browsing, and social media. Not recommended for gaming or heavy multitasking.

4. Decision Framework

Key Questions:

  1. What is your budget? The Redmi A3 is cheaper, but the A15 offers significantly better value for the price.
  2. What are your primary phone usage patterns? Gaming, media consumption, and multitasking benefit from the A15's superior performance.
  3. How important is display quality? The A15's AMOLED display is a major advantage.

My Choice: Samsung Galaxy A15

While the Redmi A3 offers a lower price point, the Samsung Galaxy A15 presents a significantly better overall package. The superior display, vastly improved performance, and potential for better battery life outweigh the minor size and weight differences. The A15's higher resolution and AMOLED screen alone make a huge difference in daily use. For a moderate price increase, the A15 delivers a substantial upgrade in user experience. The lack of clarity on future OS updates for the Redmi A3 is also concerning. The A15 provides better value 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
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.