Samsung Galaxy A02s vs Xiaomi Redmi Note 12S - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 4, 2021 April 26, 2023
Release Year 2021 2023

Physical

Volume 113.41 cm³ 95.71 cm³
Screen Size to Weight Ratio 3.32 "/g 3.65 "/g
Weight 196 g 176 g
Height 164.2 mm 159.9 mm
Width 75.9 mm 73.9 mm
Thickness 9.1 mm 8.1 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Ice Blue
  • Onyx Black
  • Pearl Green

Display

Screen Size 6.5 " 6.43 "
Resolution 720 x 1600 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.8 % 84.5 %
Pixel Density 270 PPI 409 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 700 nits
Peak Brightness N/A 1000 nits

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 120.93 mAh/in²
Battery Density 44.09 mAh/cm³ 52.24 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Mediatek MT6781 Helio G96 (12 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (2x2.05 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 13
Maximum OS Version 12

Comparison Summary

Smartphone Comparison: Samsung Galaxy A02s vs. Xiaomi Redmi Note 12S

1. Specifications Comparison

Here's a detailed comparison of the two phones, focusing on practical implications for the user:

Design

FeatureSamsung Galaxy A02sXiaomi Redmi Note 12SPractical Impact
Dimensions164.2 × 75.9 × 9.1 mm159.9 × 73.9 × 8.1 mmRedmi Note 12S is more compact, making it easier to handle and pocket. A02s is noticeably bulkier.
Weight196g176gRedmi Note 12S is lighter, leading to better comfort during extended use.
Build MaterialNot SpecifiedCorning Gorilla Glass 3 (screen)Redmi Note 12S has better screen protection from scratches and minor impacts, while A02s screen protection is unknown.

Display

FeatureSamsung Galaxy A02sXiaomi Redmi Note 12SPractical Impact
Size6.5"6.43"Negligible difference in screen size. Both offer a good viewing area for most tasks.
Resolution720x16001080x2400Redmi Note 12S delivers much sharper visuals, with text and images looking clearer. A02s display can appear less refined.
Pixel Density270 PPI409 PPIRedmi Note 12S has a significantly sharper display, making it ideal for reading, browsing, and watching high-definition media.
TechnologyPLS LCDAMOLEDRedmi Note 12S offers superior contrast, deeper blacks and more vibrant colors. A02s screen may appear washed out in comparison.
Refresh Rate60Hz90HzRedmi Note 12S offers slightly smoother animations and scrolling, providing a more fluid user experience.
Brightness0 nits1000 nitsRedmi Note 12S is significantly brighter, offering much better visibility in direct sunlight. A02s would be difficult to see outdoors.

Performance

FeatureSamsung Galaxy A02sXiaomi Redmi Note 12SPractical Impact
ChipsetQualcomm SDM450 Snapdragon 450 (14 nm)Mediatek MT6781 Helio G96 (12 nm)Redmi Note 12S has a significantly more powerful processor, leading to much faster app loading, smoother multitasking and better gaming. The A02s will feel sluggish.
AnTuTu Score74,800412,400Redmi Note 12S is considerably faster, making it more suitable for demanding tasks and ensuring the phone remains responsive over time.
GPUAdreno 506Mali-G57 MC2Redmi Note 12S's GPU delivers much better gaming performance and smoother graphics in demanding applications.

Camera

FeatureSamsung Galaxy A02sXiaomi Redmi Note 12SPractical Impact
Standard Camera13MP, f/1.8108MP, f/1.8, 1/1.52" sensor, 0.70µm pixelsRedmi Note 12S captures much more detailed photos, and performs significantly better in low light.
Selfie Camera5MP, f/2.216MP, f/2.4Redmi Note 12S takes higher-resolution selfies. A02s has a slightly wider aperture but the difference may be negligible.
Wide-Angle LensNone8MP, f/2.2Redmi Note 12S can capture wider scenes, useful for group photos and landscapes. A02s cannot do this.
Portrait Lens2MP, f/2.4NoneA02s has a dedicated depth sensor which can be used for creating a bokeh effect when taking portraits, while Note 12S doesn't
Macro Lens2MP, f/2.42MP, f/2.4Both phones offer similar macro capabilities for close-up shots, performance may be similar.
Video1080p@30fps1080p@30fps, slow-motion 120fpsBoth record in 1080p, Redmi Note 12S has slow-motion video capture which is beneficial for creative videography. A02s has a basic video capability.

Battery

FeatureSamsung Galaxy A02sXiaomi Redmi Note 12SPractical Impact
Capacity5000mAh5000mAhBoth phones should offer similar battery life under moderate usage.
Charging15W fast charging33W fast chargingRedmi Note 12S charges much faster, significantly reducing downtime. A02s charging is much slower.
Battery TypeLi-IonLi-PolymerLi-Polymer is considered safer than Li-Ion.
FeaturesNon-removableReverse charging, Non-removableRedmi Note 12S can charge other devices and has a non-removable battery. A02s has a non-removable battery.

Other

FeatureSamsung Galaxy A02sXiaomi Redmi Note 12SPractical Impact
Operating SystemAndroid 10 (upgradable to 12)Android 13Redmi Note 12S has a newer version of Android, which may mean longer software support and access to newer features.
WiFi802.11b/g/n802.11a/b/g/n/ac, dual-band, Wi-Fi MIMORedmi Note 12S offers faster speeds and better range on compatible networks. A02s will be slower.
Bluetooth4.2 LE5.2 LE, A2DP, EDR, HIDRedmi Note 12S has better connection speeds, range, and multiple device connectivity, making it more versatile.
Internal Storage32 GB or 64 GB64 GB, 128 GB, or 256 GBXiaomi Redmi Note 12S has more storage which will mean more space for apps, photos and videos. A02s has very limited storage.
RAM3 GB or 4 GB6 GB or 8 GBRedmi Note 12S has much more RAM for better multitasking and running more apps smoothly. The A02s will struggle with multiple tasks at once.
Expandable StorageNoNoNeither phone supports expandable storage
AudioBasic featuresHi-Res Audio, Stereo SpeakersRedmi Note 12S has a more immersive audio experience thanks to stereo speakers and support for higher quality formats.
SecurityBasic featuresSide-mounted fingerprint sensorRedmi Note 12S offers convenient biometric security. A02s doesn't have fingerprint unlocking, and will be reliant on pattern unlock or pins.
SensorsProximity, AccelerometerFingerprint, Accelerometer, Compass, Gyroscope, Ultrasonic proximity virtualRedmi Note 12S has a more comprehensive sensor suite, enabling more features, such as better gaming control and more accurate orientation.

2. Key Differences Analysis

Xiaomi Redmi Note 12S Advantages:

  • Superior Display: AMOLED, higher resolution, higher refresh rate, and significantly higher brightness. This translates to a much better visual experience, especially outdoors.
  • Much Higher Performance: A far more powerful processor and GPU resulting in faster app loading, smoother multitasking, and better gaming performance.
  • Significantly Better Camera: Higher resolution sensors, wide-angle lens, and better low-light performance, leading to higher quality photos and more versatility.
  • Faster Charging: 33W charging vs 15W, greatly reducing charging time.
  • More RAM and Storage: Up to 8GB RAM and 256GB storage, making it better for multitasking and storing more media.
  • Advanced Features: Fingerprint sensor, stereo speakers, better Wi-Fi, Bluetooth and newer Android version make for a more complete feature set.

Samsung Galaxy A02s Advantages:

  • Slightly Lower Price: The only major advantage over the Xiaomi device.
  • Depth Sensor: The A02s has a dedicated depth sensor for portrait photos, which some may consider an advantage.
  • Slightly Wider Aperture on Selfie: For selfie camera, but the difference is negligible.

Trade-offs:

  • The A02s is only more affordable. However, the huge differences in other categories make it difficult to recommend the A02s. The Redmi Note 12S is simply the better overall device.

3. User Profiles & Recommendations

Samsung Galaxy A02s Ideal User:

  • Extremely Budget-Conscious Users: Users for whom the price is the absolute priority and who are willing to accept severe performance limitations and lower display quality.
  • Basic Use Cases: Very light users who primarily make calls, text, and do some basic social media browsing.
  • Users with very low technical demands: If you're a basic user who doesn't need performance for gaming, high quality pictures, the A02s can fulfill this.

Xiaomi Redmi Note 12S Ideal User:

  • Value-Conscious Buyers: Users who want a well-rounded smartphone with a great display, good camera, and solid performance without breaking the bank.
  • Everyday Users: People who browse the web, use social media, take photos, watch videos and occasionally game.
  • Students and Professionals: Those who need a responsive device for multitasking and productivity.
  • Media Consumers: Users who frequently watch videos or listen to music and appreciate the better display, brightness, and stereo speakers.

Use Cases:

  • Samsung Galaxy A02s: A basic backup phone, for extremely light users who need the absolute cheapest smart phone available.
  • Xiaomi Redmi Note 12S: Everyday tasks such as browsing, social media, photography, video streaming, casual gaming, and light productivity tasks.

4. Decision Framework

Key Questions for Buyers:

  1. What is my budget, and how much is price a priority? If the absolute cheapest phone is needed, the A02s could be an option, but at a huge loss in overall quality.
  2. How important is display quality, including brightness and sharpness? If you need a bright sharp display, the 12S is the only option.
  3. What are my typical daily use cases, and how much performance do I require? If you need performance for apps, games, or media, the 12S is the superior choice.

Scenario-Based Recommendations:

  • Scenario 1: Budget is the highest priority:
    • Recommendation: Samsung Galaxy A02s. If the absolute cheapest phone is required, this is the only advantage the A02s has over the 12S. Be aware that performance will be severely limited.
  • Scenario 2: Balanced smartphone experience with good value:
    • Recommendation: Xiaomi Redmi Note 12S. It offers a significantly better experience in almost every category for a slightly higher price.
  • Scenario 3: Need high screen brightness and visibility for outdoor use:
    • Recommendation: Xiaomi Redmi Note 12S. Its 1000 nits of brightness make it usable under direct sunlight.
  • Scenario 4: Gaming, multitasking and more demanding apps are frequently used
    • Recommendation: Xiaomi Redmi Note 12S. The much superior processor will allow you to use these features with ease.

My Choice

I would choose the Xiaomi Redmi Note 12S without a second thought. While the Samsung Galaxy A02s may have a slightly lower price point, the massive difference in overall user experience makes it a poor choice in comparison. The Redmi Note 12S provides a drastically better display with its vibrant AMOLED panel and higher resolution. It also offers significantly faster performance which will impact user experience on a day-to-day basis. The camera system is a significant leap forward, offering more versatility and higher quality images. The Redmi Note 12S has a much more complete feature set with a fingerprint scanner, better audio with stereo speakers, faster charging, and more storage and RAM. The benefits of the 12S are undeniable and vastly outweigh the marginal cost increase.

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.