Samsung Galaxy S21+ 5G vs Oppo Reno12 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 June 25, 2024
Release Year 2021 2024

Physical

Volume 95.23 cm³ 90.89 cm³
Screen Size to Weight Ratio 3.35 "/g 3.79 "/g
Weight 200 g 177 g
Height 161.5 mm 161.4 mm
Width 75.6 mm 74.1 mm
Thickness 7.8 mm 7.6 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Matte Brown
  • Sunset Pink
  • Astro Silver

Display

Screen Size 6.7 " 6.7 "
Resolution 1080 x 2400 1080 x 2412
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 90.3 %
Pixel Density 394 PPI 394 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1300 nits 1200 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 111.38 mAh/in²
Battery Density 50.4 mAh/cm³ 55.01 mAh/cm³
Battery Capacity 4800 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek Dimensity 7300 Energy (4 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G615 MC2

Connectivity

USB Version 3.2 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.2, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 15 17

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21+ 5G vs. Oppo Reno12

1. Specifications Comparison

Here's a detailed breakdown of the specifications, focusing on their real-world implications:

Design

FeatureSamsung Galaxy S21+ 5GOppo Reno12Practical Impact
Dimensions161.5 × 75.6 × 7.8 mm161.4 × 74.1 × 7.6 mmThe Oppo Reno12 is slightly narrower and thinner, making it marginally more comfortable to hold and pocket.
Weight200g177gThe Oppo Reno12 is significantly lighter, which makes it more comfortable for extended use and carrying around.
BuildStandardStandardBoth phones have a standard smartphone build; differences would lie in the material used, which is not specified.

Display

FeatureSamsung Galaxy S21+ 5GOppo Reno12Practical Impact
Size6.7"6.7"Both have the same screen size, offering similar viewing real estate.
Resolution1080x24001080x2412Virtually identical sharpness; the difference in resolution is negligible in real-world use.
Pixel Density394 PPI394 PPIBoth displays appear equally sharp.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors, deep blacks, and excellent contrast.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1300 nits1400 nitsThe Oppo Reno12 will be slightly more visible outdoors under direct sunlight.

Performance

FeatureSamsung Galaxy S21+ 5GOppo Reno12Practical Impact
ChipsetExynos 2100 (5 nm)Mediatek Dimensity 7300 Energy (4 nm)The Exynos 2100 provides a marginally higher raw processing power, but the difference in day-to-day performance for most users may not be very significant.
AnTuTu Score749,100702,140The Samsung S21+ 5G will likely provide marginally better performance in demanding tasks.
GPUMali-G78 MP14Mali-G615 MC2The Samsung S21+ 5G’s GPU will likely offer marginally better graphics performance in demanding games and graphic applications.

Camera

FeatureSamsung Galaxy S21+ 5GOppo Reno12Practical Impact
Main Camera12MP (f/1.8, 1/1.76", 1.8µm)50MP (f/1.8, 1/2", 0.7µm)Oppo's higher resolution enables more detailed shots in good light, whereas Samsung's larger pixel size allows for better low-light performance
Telephoto/Portrait64MP (f/2.0, 1/1.72", 0.8µm)Not AvailableThe Samsung Galaxy S21+ 5G offers a dedicated telephoto camera with optical zoom for better portraits and far-away subjects.
Selfie Camera10MP (f/2.2, 1/3.2", 1.22µm)32MP (f/2.0)Oppo Reno12 offers a higher-resolution selfie camera, which could produce more detailed selfies.
Wide Angle LensNot Available8MP (f/2.2, 1/2.8", 1.14µm)Oppo Reno12 allows for ultrawide shots, while Samsung lacks this capability.
Macro LensNot Available2MP (f/2.4, 1/5", 1.75µm)The Oppo Reno12 offers a dedicated macro lens for extreme close-up shots.
Wide Angle + Macro12.2MP (f/2.2, 1/2.55", 1.40µm)Not AvailableSamsung provides a dedicated wide angle + macro lens, offering more detailed ultra-wide photos.
Video Recording8K@24fps, 4K@60fps4K@30fpsThe Samsung S21+ 5G allows for higher-resolution video recording at 8K, better for professional video content creation.
DXOMarkMobile: 111, Photo: 118, Video: 89Not TestedSamsung Galaxy S21+ 5G has been tested with higher rating than Oppo Reno12.

Battery

FeatureSamsung Galaxy S21+ 5GOppo Reno12Practical Impact
Capacity4800mAh5000mAhThe Oppo Reno12’s slightly larger battery could result in marginally longer battery life.
Charging25W Fast Charging80W Fast ChargingThe Oppo Reno12 charges significantly faster, minimizing downtime.
FeaturesWireless charging, Reverse wireless chargingNot AvailableSamsung S21+ has the additional benefit of wireless charging and reverse wireless charging.

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Slightly Better Performance: Higher AnTuTu score indicates marginally better processing performance for demanding tasks.
  • Versatile Camera System: The inclusion of a dedicated telephoto lens with optical zoom provides greater flexibility for capturing various types of shots, including better portrait capabilities.
  • Higher Video Recording Capabilities: Can record videos at up to 8K resolution for professional content creation.
  • Advanced Battery Features: Includes wireless charging and reverse wireless charging capabilities for added convenience.
  • Enhanced Audio: Features Dolby Atmos, Hi-Res Audio and Stereo Speakers for immersive audio experiences.
  • eSIM Support: The additional eSIM provides more flexibility with mobile plans.

Oppo Reno12 Advantages:

  • Lighter and Thinner Design: More comfortable for extended use and carrying around.
  • Brighter Display: Easier to view in direct sunlight due to higher brightness.
  • Faster Charging: The 80W charging significantly reduces charging times.
  • Higher Resolution Main and Selfie Cameras: Potentially more detailed photos and selfies under good lighting conditions.
  • Wider Lens Options: Wide-angle lens for ultrawide shots and a macro lens for close-up pictures.
  • Newer OS: Comes with Android 14 out of the box, providing better software support.
  • More RAM: Offers 12GB or 16GB RAM for better multitasking.
  • Newer Bluetooth Version: Better power efficiency and data transfer capabilities with Bluetooth 5.4.

Trade-offs:

  • The Samsung S21+ 5G prioritizes versatility in the camera system and wireless charging capabilities, but charges slower and is heavier.
  • The Oppo Reno12 offers a more modern design, faster charging and newer software but lacks some advanced camera and battery features.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G Ideal User:

  • Photography Enthusiasts: Users who want versatile camera options, including a dedicated telephoto lens, for various photography needs.
  • Video Content Creators: Users who value high-resolution video recording capabilities (up to 8K).
  • Users Who Value Audio Quality: Users who want a great immersive audio experience with Dolby Atmos and stereo speakers.
  • Users Who Value Advanced Battery Features: Users that want the benefit of wireless charging.

    Use Cases:

    • Capturing high-quality photos and videos in a variety of scenarios.
    • Creating professional-grade video content with 8K recording.
    • Enjoying immersive multimedia content with Dolby Atmos and stereo speakers.

Oppo Reno12 Ideal User:

  • Users Prioritizing Ergonomics: Those who prefer a lighter, thinner phone for daily carry and comfortable use.
  • Social Media Enthusiasts: Users who take a lot of selfies and enjoy capturing varied perspectives with wide-angle and macro lenses.
  • Users Needing Fast Charging: Those who need a quick charge to reduce downtime.
  • Users Preferring Latest Software: Users that want the latest OS out of the box with a guaranteed upgrade path.
  • Heavy Multitaskers: Those who need the extra RAM for better application handling.

    Use Cases:

    • Taking frequent selfies and social media photos.
    • Capturing wide-angle group photos or landscape shots.
    • Using the device for extended periods with minimal charging downtime.
    • Using various social media and productivity apps.

4. Decision Framework

Key Questions for Buyers:

  1. Camera Priority: Do you need a versatile camera with telephoto capabilities, or do you prefer higher resolution with ultrawide and macro options?
  2. Battery Focus: Is wireless charging and convenience essential, or is faster charging more important for your daily needs?
  3. Performance Needs: Are you looking for slightly more raw processing power or do you prioritize the latest software and more RAM?

Scenario-Based Recommendations:

  • Scenario 1: "The Photographer": If you want high quality and versatile cameras and advanced video capabilities, the Samsung Galaxy S21+ 5G is more suitable.
  • Scenario 2: "The On-The-Go User": If you need a lighter, more ergonomic phone with fast charging and the latest software, the Oppo Reno12 is the better choice.
  • Scenario 3: "The Multimedia User": If you want the best immersive audio experience, along with wireless charging and a versatile camera system, the Samsung Galaxy S21+ 5G is the choice.
  • Scenario 4: "The Multitasker User": If you need the most RAM to handle numerous applications, the Oppo Reno12 would be the better choice.

My Choice

If I were to choose between these two phones, I would personally lean towards the Samsung Galaxy S21+ 5G. Here's why:

  • Camera Versatility: I value having the dedicated telephoto lens for optical zoom and diverse shooting capabilities, as it makes a big difference in my photography experience.
  • Multimedia Experience: I appreciate the enhanced audio features, including Dolby Atmos and stereo speakers, for watching content and listening to music.
  • Wireless Charging: Having wireless charging is a major convenience factor for me.
  • Slightly Higher Performance: While the difference is not enormous, the slightly better raw performance from the Exynos 2100 is beneficial for the type of use I intend for the phone.

While the Oppo Reno12 has compelling advantages such as a lighter design and fast charging, the camera versatility, audio and wireless capabilities of the Samsung Galaxy S21+ 5G align more with my specific priorities.

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.