Samsung Galaxy A02s vs Samsung Galaxy M15 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 4, 2021 April 5, 2024
Release Year 2021 2024

Physical

Volume 113.41 cm³ 114.35 cm³
Screen Size to Weight Ratio 3.32 "/g 3 "/g
Weight 196 g 217 g
Height 164.2 mm 160.1 mm
Width 75.9 mm 76.8 mm
Thickness 9.1 mm 9.3 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Gray
  • Light Blue
  • Dark Blue

Display

Screen Size 6.5 " 6.5 "
Resolution 720 x 1600 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 81.8 % 84.3 %
Pixel Density 270 PPI 396 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 800 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 142.01 mAh/in²
Battery Density 44.09 mAh/cm³ 52.47 mAh/cm³
Battery Capacity 5000 mAh 6000 mAh
NFC Support No Yes
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 506 Mali-G57 MC2

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 10 14
Maximum OS Version 12

Comparison Summary

Smartphone Comparison: Samsung Galaxy A02s vs. Samsung Galaxy M15

1. Specifications Comparison

FeatureSamsung Galaxy A02sSamsung Galaxy M15Practical Impact
Design
Dimensions164.2 × 75.9 × 9.1 mm160.1 × 76.8 × 9.3 mmA02s is slightly taller, M15 slightly thicker; minor difference in hand feel.
Weight196g217gM15 is noticeably heavier, A02s might be more comfortable for longer use.
Display
Size6.5"6.5"Both have the same screen size.
Resolution720x16001080x2340M15 has a significantly sharper display, text and images appear clearer.
Pixel Density270 PPI396 PPIM15’s display is noticeably more detailed and less pixelated.
TechnologyPLS LCDAMOLEDM15 has richer colors, deeper blacks, better contrast, and improved power efficiency in dark mode.
Refresh Rate60Hz90HzM15 provides slightly smoother scrolling and animations.
Brightness0 nits800 nitsM15 is much more usable outdoors under bright sunlight.
Performance
ChipsetQualcomm Snapdragon 450 (14 nm)Mediatek Dimensity 6100+ (6 nm)M15 has a much faster and more efficient processor for smoother performance.
AnTuTu Score74,800442,500M15 offers significantly faster app loading, multitasking, and gaming.
GPUAdreno 506Mali-G57 MC2M15 has a more powerful GPU for better gaming.
Camera
Main Camera13MP f/1.850MP f/1.8M15 captures much more detailed photos.
Selfie Camera5MP f/2.213MP f/2.0M15 captures much higher-resolution selfies with better low-light performance due to the wider aperture.
Wide Angle LensN/A5MP f/2.2M15 can capture wider shots, beneficial for group photos and landscapes.
Depth Sensor2MP f/2.4N/AA02s has dedicated depth sensor for portrait mode, which M15 lacks.
Macro Lens2MP f/2.42MP f/2.4Both offer similar macro lens capabilities.
Video1080p@30fps1080p@30fps (EIS)M15 has electronic image stabilization, offering smoother video recording.
Slow MotionNoYes, 240fpsM15 can record slow-motion videos.
Battery
Capacity5000 mAh6000 mAhM15 has significantly longer battery life for everyday use.
Charging15W25WM15 charges faster, reducing downtime.
Software
OS VersionAndroid 10 (Up to 12)Android 14M15 has a newer Android version with the latest features, security updates and performance improvements.
Connectivity
WiFi802.11b/g/n802.11a/b/g/n/acM15 supports faster and more reliable WiFi standards
Bluetooth4.2 LE5.2 LEM15 has faster Bluetooth and is more energy efficient.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoM15 has more precise positioning due to more satellite support.
Storage
Internal Storage32/64GB128GBM15 offers more storage for media and apps.
RAM3/4 GB4/6 GBM15 handles multitasking better due to higher RAM.
Expandable StorageNoNoNeither phone offers expandable storage.
Audio
QualityBasic2 MicrophonesM15 offers better audio recording capabilities due to dual microphones.
Security
FeaturesBasicSide-mounted fingerprint sensorM15 provides a convenient biometric security option.
Sensors
SensorsProximity, AccelerometerFingerprint, Accelerometer, Gyroscope, Ultrasonic proximity virtualM15 includes a fingerprint sensor and gyroscope.

2. Key Differences Analysis

Samsung Galaxy A02s Advantages:

  • Lighter: The A02s is 21 grams lighter, making it potentially more comfortable for extended one-handed use.
  • Dedicated Depth Sensor: Includes a dedicated depth sensor for portrait mode, which is lacking on the M15.

Samsung Galaxy M15 Advantages:

  • Superior Display: AMOLED screen with higher resolution, higher pixel density, 90Hz refresh rate, and significantly better brightness.
  • Significantly Better Performance: Much more powerful processor and GPU, resulting in smoother overall usage.
  • Better Cameras: Higher resolution main and selfie cameras and includes a wide-angle lens for versatile photography.
  • Larger Battery and Faster Charging: Offers longer battery life and faster charging, resulting in less downtime.
  • Modern Software: Ships with Android 14, providing the latest features and security updates, and has better software support.
  • Enhanced Connectivity: Supports newer WiFi and Bluetooth standards, and has better GPS with more satellite support for more precise navigation.
  • More Storage and RAM: Comes with 128GB of storage and up to 6GB RAM, resulting in smoother multitasking and more space for apps and files.
  • Better Audio Recording: Dual microphones enhance audio recording quality.
  • Biometric Security: Includes a side-mounted fingerprint sensor for enhanced security and convenience.
  • Electronic Image Stabilization (EIS): For smoother video recording on the go.

Trade-offs:

  • Weight: The M15 is heavier than the A02s, which may be a factor for users seeking the lightest possible device.
  • Portrait Mode (Depth) Camera: The M15 lacks a dedicated depth sensor, relying on software for portrait mode, while the A02s includes one.

3. User Profiles & Recommendations

Samsung Galaxy A02s Ideal User:

  • Budget-Conscious Users: Those seeking the most affordable smartphone for basic tasks.
  • Light Users: Individuals who primarily browse the web, send messages, and make calls.
  • Users Who Prioritize Lightness: People who prefer a lighter phone for extended usage or those with smaller hands.
  • Users who specifically need depth camera: This could include users who like using portrait mode frequently

Use Cases for Samsung Galaxy A02s:

  • Basic calling and texting.
  • Light social media browsing.
  • Casual web surfing.
  • Simple photography for social media

Samsung Galaxy M15 Ideal User:

  • Users who want smooth performance: Users who play games, multitask a lot and need a fast, responsive phone.
  • Multimedia Consumers: People who watch videos, play games, and consume media frequently.
  • Photography Enthusiasts: Those who value better image quality and versatility in their smartphone camera.
  • Users who prefer a modern smartphone experience: People who want a newer OS, faster connection speeds and better biometric security.
  • Users who need a long battery life: For those who are not near a charger frequently, and need a device that lasts all day.

Use Cases for Samsung Galaxy M15:

  • Gaming, streaming and video consumption.
  • Photography, including low-light conditions and landscape photography.
  • All-day use without needing to recharge
  • Running demanding applications without lag.
  • Faster download speeds with better WiFi capabilities

Price-to-Value:

  • The Samsung Galaxy M15 offers a significantly better price-to-value ratio due to its superior performance, display, camera and battery. While the A02s is cheaper, the M15's improvements in performance, display, camera, and battery are well worth the extra cost.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The A02s is more affordable, while the M15 offers much better specs for a higher price.
  2. How important is performance and display quality? If you value smooth performance, a vibrant display, and responsiveness, then the M15 is far superior.
  3. Do you need long battery life, or fast charging? The M15 has a larger battery and significantly faster charging capabilities.

Scenario-Based Recommendations:

  • Basic User on a Tight Budget: If budget is the only concern and you need a very basic smartphone, the A02s will suffice. However, the M15 is highly recommended due to the considerable increase in performance, display and battery.
  • Everyday User with a Moderate Budget: The Samsung Galaxy M15 is the better choice. The improved display, performance, and battery life make it a much better investment for a smooth experience.
  • Multimedia or Photography Enthusiast: The Samsung Galaxy M15 is a clear winner. Its superior camera capabilities, display quality, and enhanced features make it a much more enjoyable device for multimedia use.

My Choice

I would choose the Samsung Galaxy M15.

Reasons:

The Samsung Galaxy M15 provides a much better user experience across the board. The significantly improved display, performance, camera capabilities, battery life, and modern features make it a much more worthwhile purchase. While the A02s is lighter and includes a dedicated depth camera, these advantages are negligible compared to the advantages of the M15. The benefits of a more powerful chipset, significantly better screen, larger battery with fast charging, modern software and enhanced camera quality make the M15 a much more future proof device. The M15 offers a smooth, responsive experience which is a huge factor for me.

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.