Samsung Galaxy A02 vs Oppo Reno12 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 27, 2021 June 25, 2024
Release Year 2021 2024

Physical

Volume 113.27 cm³ 90.89 cm³
Screen Size to Weight Ratio 3.16 "/g 3.79 "/g
Weight 206 g 177 g
Height 164 mm 161.4 mm
Width 75.9 mm 74.1 mm
Thickness 9.1 mm 7.6 mm
Foldable Design No No
Available Colors
  • Black
  • Blue
  • Matte Brown
  • Sunset Pink
  • Astro Silver

Display

Screen Size 6.5 " 6.7 "
Resolution 720 x 1600 1080 x 2412
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.9 % 90.3 %
Pixel Density 270 PPI 394 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1200 nits

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 111.38 mAh/in²
Battery Density 44.14 mAh/cm³ 55.01 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6739W (28 nm) Mediatek Dimensity 7300 Energy (4 nm)
CPU Quad-core 1.5 GHz Cortex-A53 Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU PowerVR GE8100 Mali-G615 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 11 17

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A02Oppo Reno12Practical Impact
Design
Dimensions164 × 75.9 × 9.1 mm161.4 × 74.1 × 7.6 mmOppo Reno12 is more compact and thinner, which could feel more comfortable in hand and pocket; Samsung A02 feels bulkier.
Weight206g177gOppo Reno12 is significantly lighter, making it more comfortable for extended use; Samsung A02 might feel heavier over time.
Display
Size6.5"6.7"Oppo Reno12 has a slightly larger display, providing a more immersive experience for media consumption.
Resolution720x16001080x2412Oppo Reno12 has a much sharper display, resulting in clearer text, images, and videos. Samsung A02's display may appear blurry.
Pixel Density270 PPI394 PPIOppo Reno12’s higher PPI means text and images look noticeably crisper and more detailed compared to the A02.
TechnologyPLS LCDAMOLEDOppo Reno12 offers superior blacks, better contrast, vibrant colors and more power efficient display; Samsung A02 has poorer color reproduction.
Refresh Rate60Hz120HzOppo Reno12 provides smoother animations and scrolling, enhancing overall user experience, while Samsung A02 appears choppy in comparison.
Brightness0 nits1400 nitsOppo Reno12 offers drastically better outdoor visibility, making it much more usable in direct sunlight compared to the practically unusable A02 under sunlight.
Performance
ChipsetMediatek MT6739W (28 nm)Mediatek Dimensity 7300 Energy (4 nm)Oppo Reno12 uses a significantly more powerful and efficient chip, leading to faster app loading, smoother multitasking and better gaming; A02 is slow.
AnTuTu Score50,774702,140Oppo Reno12 offers vastly superior performance in all areas, making it suitable for demanding apps and games, Samsung A02 struggles even with basic tasks.
GPUPowerVR GE8100 (PowerVR GE8100)Mali-G615 MC2 (Arm Mali-G615 MC2)Oppo Reno12 has a much more capable GPU, providing a better gaming experience.
Camera
Standard Camera13MP, f/1.950MP, f/1.8, 1/2" Sony LYT-600Oppo Reno12 captures much more detailed images, and has better low-light performance due to sensor and aperture, A02 lacks details.
Selfie Camera5MP, f/2.032MP, f/2.0Oppo Reno12 captures high-resolution selfies with better details; A02 produces low quality selfies.
Wide Angle LensNone8MP, f/2.2, 1/2.8" Sony IMX355Oppo Reno12 offers wider perspective images, adding more versatility to photography; A02 completely lacks ultrawide capabilities.
Macro Lens2MP, f/2.42MP, f/2.4, 1/5" Omnivision OV02B10Both offer similar macro camera capabilities; neither will produce high-quality results.
Video1080p@30fps; No; Slow-motion: No, 30fps4K@30fps with HDR, OIS, EIS; Yes; Slow-motion: Yes, 240fpsOppo Reno12 can record higher quality videos with better stabilization, more resolution and more features; A02's video is very basic.
Camera FeaturesDigital zoom, Dual camera, Autofocus, Touch focus, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timerNoise reduction, 4K Video, Digital zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Continuous autofocus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAWOppo Reno12 provides many more camera features, increasing the device's versatility; A02 lacks many basic features.
Battery
Capacity5000mAh5000mAhBoth phones have similar battery capacity.
Charging7.5W fast charging, Li-Ion80W fast charging, Li-PolymerOppo Reno12 charges significantly faster, reducing charging time; A02’s charging is very slow.
Software
OSAndroid 10 (upgradable to 11)Android 14 (upgradable to 17)Oppo Reno12 has a much more recent Android version and will receive more software updates in the future; A02 is outdated and likely wont receive updates.
Connectivity
Wi-Fi802.11b, 802.11g, 802.11n, Wi-Fi Hotspot802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, WiFi 6 (802.11ax), Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMOOppo Reno12 supports faster and more reliable Wi-Fi standards.
BluetoothBluetooth 4.2 LE, A2DP, LEBluetooth 5.4 LE, A2DP, LE, APT-x, LDAC, SBC, AACOppo Reno12 supports more modern Bluetooth features, offering better audio quality and more reliable connections.
GPSGPS, A-GPS, GLONASSGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoOppo Reno12 supports more satellite systems, improving location accuracy in various scenarios; A02's GPS is limited.
SIMDual SIM Dual Standby (Nano SIM + Nano SIM)Dual SIM Dual Standby (Nano SIM + Nano SIM)Both support dual SIM capabilities.
Storage
Internal32 GB or 64 GB256 GB or 512 GBOppo Reno12 offers much more storage for photos, videos, and apps; A02 is very limited in storage.
RAM2 GB or 3 GB or 4 GB12 GB or 16 GBOppo Reno12 provides significantly more RAM, ensuring smoother multitasking and performance; A02 will struggle with even a few apps open.
Expandable StorageNoNoNeither phone supports expandable storage; therefore onboard storage capacity is critical.
Audio
Audio QualityDolby AtmosBasic audio featuresSamsung A02 has slightly better audio quality with Dolby Atmos support; Oppo Reno12's audio is basic.
Security
Security FeaturesBasic security featuresBasic Fingerprint sensorOppo Reno12 has biometric fingerprint security, A02 does not; Oppo Reno12 offers more convenient security measures.
Build Quality
Screen ProtectionUnknownCorning Gorilla Glass Victus 2Oppo Reno12 has superior screen protection; A02 has unknown level of screen protection, likely much worse.
SensorsProximity, AccelerometerFingerprint, Proximity, Accelerometer, Gyroscope, Gravity, GeomagneticOppo Reno12 includes more sensors, offering enhanced functionality for games and apps.

2. Key Differences Analysis

Samsung Galaxy A02 Advantages:

  • Dolby Atmos Audio: Offers slightly enhanced audio quality for media consumption.
  • Lower price: Likely to be significantly cheaper, although not listed.

Oppo Reno12 Advantages:

  • Superior Display: AMOLED, higher resolution, higher refresh rate, much higher brightness (essential for outdoor visibility)
  • Vastly Superior Performance: Much faster processor, larger RAM, leading to a smoother and faster experience for all tasks.
  • Significantly Better Cameras: Higher resolution, more features, and better low-light performance, also includes a wide angle lens.
  • Faster Charging: 80W charging significantly reduces charging times.
  • Newer Software: Runs on a much more recent version of Android, getting more updates.
  • Improved Connectivity: Supports newer WiFi and Bluetooth versions.
  • Biometric Security: Fingerprint sensor provides more secure and convenient unlocking compared to the A02’s basic security.
  • Screen Protection: Features Corning Gorilla Glass Victus 2 for much better durability.

Trade-offs:

  • Price: Oppo Reno12 is expected to be more expensive (the prices are not provided, so I can't provide a specific comparison), potentially making the Samsung A02 more appealing to budget-conscious users.
  • Audio: Samsung A02 has a slightly better audio technology; however, this does not outweight the vast overall differences in specifications and performance.
  • Weight: Samsung A02 is slightly heavier, which may be considered a trade-off depending on user preference.

3. User Profiles & Recommendations

Samsung Galaxy A02:

  • Ideal User: A very budget-conscious user with minimal needs who is only looking for a basic phone for calls, texts, and light browsing and doesn't prioritize performance or camera quality. The user should have very low usage needs and a low screen brightness preference.
  • Use Cases: Basic communication, occasional web browsing, music listening (if you have headphones), and use as a backup phone. Not recommended for demanding tasks or media consumption.

Oppo Reno12:

  • Ideal User: A user who values a fast, responsive smartphone experience with excellent cameras, high-quality display, and good battery life. They may be interested in social media, gaming, photography, and media consumption.
  • Use Cases: Gaming, social media, high quality photography and videography, watching videos, multitasking, demanding apps and tasks, and general daily usage.

Price-to-Value Ratio:

  • The Oppo Reno12 provides a much higher price-to-value ratio if one is looking for better features, capabilities, and long-term usability. The Samsung A02 is mostly only worth purchasing for users who have extremely limited budgets and are aware of its limitations.

4. Decision Framework

Key Questions for Buyers:

  1. What is my budget? If budget is a primary concern, the Galaxy A02 may be tempting, but one must realize that the device will struggle with even simple tasks.
  2. What are my primary use cases? If the phone is used for browsing, basic usage and calls, the A02 may be adequate but not recommended. If used for photography, media consumption, or multitasking, the Reno12 is preferable.
  3. How important is long-term performance? If the user wants a phone that will still feel responsive in a year or two, the Reno12 is the better choice with its better specs and more software updates.

Scenario-Based Recommendations:

  • Scenario 1: Ultra-Budget User - The user has an extremely tight budget and only needs a basic phone. They need to be okay with the A02's slow performance, poor display and camera. Recommendation: Samsung Galaxy A02.

  • Scenario 2: Performance and Features Focused User - The user values a fluid and enjoyable experience with a decent camera. Recommendation: Oppo Reno12.

  • Scenario 3: Photography and Videography User - The user needs good quality images and video capabilities with multiple features. Recommendation: Oppo Reno12.

  • Scenario 4: Long-Term Use User - The user wants a phone that stays smooth and up-to-date with software. Recommendation: Oppo Reno12.

My Choice

I would choose the Oppo Reno12 without hesitation. The difference in performance, display quality, camera capabilities, and overall user experience is vast. While the Samsung Galaxy A02 might be cheaper, the Reno12 provides significantly more value for its price due to its superior specs in almost every category. The only case in which I'd consider A02 is if it were being used as a basic backup phone. The Oppo Reno12 is a much more capable and modern smartphone that is a better long-term investment due to its performance, features and future software support.

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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