Samsung Galaxy S21 5G vs OnePlus 12R - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 12R
OnePlus 12R
Oneplus

General

Launch Date January 29, 2021 February 6, 2024
Release Year 2021 2024

Physical

Volume 85.33 cm³ 108.21 cm³
Screen Size to Weight Ratio 3.67 "/g 3.28 "/g
Weight 169 g 207 g
Height 151.7 mm 163.3 mm
Width 71.2 mm 75.3 mm
Thickness 7.9 mm 8.8 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Cool Blue
  • Iron Gray
  • Electric Violet
  • Sunset Dune

Display

Screen Size 6.2 " 6.78 "
Resolution 1080 x 2400 1264 x 2780
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 90.9 %
Pixel Density 421 PPI 450 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1600 nits
Peak Brightness 1300 nits 4500 nits

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 119.65 mAh/in²
Battery Density 46.88 mAh/cm³ 50.83 mAh/cm³
Battery Capacity 4000 mAh 5500 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU Mali-G78 MP14 - International Adreno 740

Connectivity

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

Software

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

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21 5G vs. OnePlus 12R

1. Specifications Comparison

FeatureSamsung Galaxy S21 5GOnePlus 12RPractical Impact
Design
Launch Date2021-01-292024-02-06OnePlus 12R is significantly newer, likely with updated features & better long-term software support.
Dimensions151.7 × 71.2 × 7.9 mm163.3 × 75.3 × 8.8 mmOnePlus 12R is larger and bulkier, less pocketable for some users, S21 5G more compact and ergonomic.
Weight169g207gS21 5G is noticeably lighter, easier to handle for extended periods, more comfortable in hand.
Display
Size6.2"6.78"OnePlus 12R offers a more immersive experience, better for media consumption and gaming, S21 5G more compact and portable.
Resolution1080x24001264x2780OnePlus 12R has a sharper and more detailed display, better for reading small text and viewing high-resolution content.
PPI421450OnePlus 12R's display is slightly sharper.
TechnologyAMOLEDUnspecifiedS21 5G has AMOLED, known for vibrant colors, deep blacks, and excellent contrast. OnePlus 12R's technology isn't specified, making the comparison challenging.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations, enhancing the user experience.
Brightness1300 nits4500 nitsOnePlus 12R provides dramatically better outdoor visibility under bright sunlight, very helpful in outdoor environments.
Performance
ChipsetExynos 2100 (5 nm) - InternationalQualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm)OnePlus 12R’s Snapdragon Gen 2 is a newer, more powerful chipset, resulting in significantly faster performance and better efficiency.
AnTuTu Score749,1001,743,901OnePlus 12R delivers much better performance in demanding tasks like gaming, multitasking, and heavy apps.
GPUMali-G78 MP14 - InternationalAdreno 740OnePlus 12R has a significantly more powerful GPU, offering smoother and better graphic rendering for demanding applications.
Battery
Capacity4000mAh5500mAhOnePlus 12R has a significantly larger battery, potentially offering much longer usage between charges.
Charging25W Fast Charging100W Fast ChargingOnePlus 12R charges much faster, reducing downtime considerably.
FeaturesWireless Charging, Reverse Wireless ChargingReverse ChargingS21 5G offers wireless charging and reverse wireless charging capabilities, but no charger in the box
Camera
Main Camera12MP, f/1.8, 1/1.76"50MP, f/1.8, 1/1.56"OnePlus 12R has a higher resolution main sensor and larger sensor, generally better image quality and detail, especially in low light.
Telephoto + Portrait64MP, f/2.0, 1/1.72"NoneS21 5G offers a dedicated telephoto lens, offering better zoom capabilities, and portrait shots. OnePlus 12R lacks a telephoto lens.
Selfie Camera10MP, f/2.2, 1/3.2"16MP, f/2.4, 1/3.1"OnePlus 12R has higher resolution and slightly larger sensor for selfies.
Wide Angle LensNone8MP, f/2.2, 1/2.8"OnePlus 12R includes a dedicated wide-angle lens for capturing expansive scenes.
Macro LensNone2MP, f/2.4, 1/5"OnePlus 12R features a macro lens for close-up shots.
Wide Angle + Macro Lens12.2MP, f/2.2, 1/2.55"NoneS21 5G includes this feature for wide shots.
VideoUp to 8K@24fpsUp to 4K@60fpsS21 5G can record in 8K, providing higher resolution footage, but OnePlus 12R is capped at 4K.
DXOMark (Mobile)111Not AvailableS21 5G's camera performance is rated by DXOMark. OnePlus 12R's performance is unknown.
DXOMark (Selfie)132Not AvailableS21 5G's selfie camera performance is rated by DXOMark. OnePlus 12R's performance is unknown.
Camera FeaturesOptical Zoom, 8K VideoFlicker Sensor, Ultra stable video, GimbalS21 5G offers optical zoom and 8K, while the 12R prioritizes stability and includes a flicker sensor.
Software
OSAndroid 11 (upgradable to 15)Android 14 (upgradable to 17)OnePlus 12R ships with a newer version of Android and is expected to have longer software update support.
Connectivity
WiFiWiFi 6WiFi 7OnePlus 12R supports a newer WiFi standard for potentially faster and more reliable connections.
BluetoothBluetooth 5.0Bluetooth 5.3OnePlus 12R has a newer Bluetooth version with potentially better efficiency and range.
GPSL1+L5L1+L5, QZSS, GLONASS (L1), BeiDou (B1), BeiDou (B2)OnePlus 12R supports more satellite systems offering better location accuracy.
SIMDual SIM, Dual StandbyDual SIM, Dual StandbyBoth support dual SIM functionality.
Storage
Internal128/256 GB128/256 GBBoth come in the same storage capacity.
RAM8 GB8/16 GBOnePlus 12R offers an option for more RAM for better multitasking performance.
ExpandableNoNoNeither phone supports expandable storage.
Audio
QualityDolby Atmos, Noise Cancelling Mic, Stereo SpeakersStereo SpeakersS21 5G offers more advanced audio features, including Dolby Atmos and noise cancellation.
Security
FeaturesBasic FingerprintBasic FingerprintBoth include a basic fingerprint sensor for security.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass Victus 2Both offer screen protection. Victus 2 may be slightly more durable.
Sensors
SensorsFingerprint, Proximity, Accelerometer, Compass, Gyroscope, BarometerFingerprint, Proximity, Accelerometer, Gyroscope, Gravity, RGB, PedometerS21 5G has Barometer and Compass, while OnePlus has Gravity, RGB and Pedometer for additional functionality.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • More Compact Design: Lighter and smaller, making it more comfortable for one-handed use and portability.
  • AMOLED Display: Offers richer colors, deeper blacks, and better contrast, providing a more visually pleasing experience.
  • Telephoto Lens: Dedicated telephoto lens enhances zoom capabilities and portrait photography.
  • Wireless Charging: Includes convenient wireless charging and reverse wireless charging features.
  • Dolby Atmos and Noise Cancelling Microphones: Offers enhanced spatial audio and clearer calls.
  • 8K video: Records video in higher resolution for professional-grade content.
  • DXOMark Rating: Has a benchmarked camera rating providing a reference for its photo and video quality, though not necessarily superior.

OnePlus 12R Advantages:

  • Newer & More Powerful Chipset: The Snapdragon 8 Gen 2 offers significantly better performance, faster app loading, and smoother multitasking.
  • Significantly Larger Battery: Provides longer battery life, reducing the need for frequent charging.
  • Much Faster Charging: 100W charging dramatically reduces charging time.
  • Larger & Brighter Display: Offers a more immersive experience, better for media consumption, with higher resolution and brightness.
  • Wide-Angle and Macro Lens: More versatile camera system for different shooting scenarios.
  • Newer Software: Ships with a newer version of Android, ensuring better software support and latest features.
  • WiFi 7: Supports more current WiFi standard for better connectivity.

Significant Trade-offs:

  • Samsung S21 5G: Lacks the raw processing power, larger battery, and faster charging speeds of the OnePlus 12R. The lack of a wide angle and macro lens limits camera versatility.
  • OnePlus 12R: Larger and heavier, missing wireless charging, telephoto lens for optical zoom and doesn't include an AMOLED display. Its camera lacks DXOMark benchmark data.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G is ideal for:

  • Users who prioritize a compact and lightweight phone.
  • Those who value a vibrant AMOLED display with excellent colors and contrast.
  • Users who want wireless charging capabilities.
  • Users who prioritize sound quality and 8K video content creation.
  • Users who often use zoom capabilities.

Use Cases:

  • Casual daily use, browsing, social media.
  • Users who prefer a smaller phone for one-handed operation.
  • Users who enjoy creating and consuming high-quality photo and video content.
  • Travelers who want a compact and convenient device with good camera capabilities

OnePlus 12R is ideal for:

  • Users who prioritize performance and speed.
  • Gamers and power users who demand high-end processing and RAM.
  • Those who need excellent battery life and fast charging.
  • Users who need a bright screen for use in outdoor environments.
  • Users who need versatility in camera features (wide, macro lenses).

Use Cases:

  • Gaming, multitasking, and demanding applications.
  • Long periods of use away from a power source.
  • Users who want a large, vibrant display for media consumption and gaming.
  • Frequent outdoor users who need a bright screen.
  • Users who prefer the latest Android version and long-term software support.

4. Decision Framework

Key Questions for Buyers:

  1. What is your priority: size and comfort, or performance and battery life? (S21 5G is smaller, OnePlus 12R has much better performance and battery)
  2. How important is camera versatility and specific features like zoom, wireless charging, or video resolution? (S21 5G has telephoto lens, wireless charging, and 8K video, 12R has wide and macro lenses).
  3. What is your typical daily usage pattern? (S21 5G may suffice for basic use, while 12R is better for power users and gamers).

Scenario-Based Recommendations:

  • Scenario 1: Casual User - If your usage is mostly basic tasks, browsing, and social media and you value portability, the Samsung Galaxy S21 5G is sufficient.
  • Scenario 2: Power User/Gamer - If you need top performance, battery life, and fast charging, the OnePlus 12R is the clear choice.
  • Scenario 3: Photography Enthusiast - If you value zoom, portrait mode, wireless charging and sound quality, the Samsung Galaxy S21 5G might be preferred, while if wide and macro are more important, the OnePlus 12R is better.

My Choice and Explanation:

If I were choosing between these two phones, I would personally select the OnePlus 12R. Here's why:

  1. Future-Proof Performance: The Snapdragon 8 Gen 2 chipset is a massive leap in performance over the Exynos 2100. As apps and games become more demanding, the OnePlus 12R will remain more capable and smoother in the long run.
  2. Battery Life and Charging: The significantly larger battery and much faster charging speed of the OnePlus 12R are huge advantages for me. I tend to use my phone heavily throughout the day, and these aspects of the OnePlus 12R offer significantly more convenience.
  3. Display Size and Brightness: I appreciate a large and vibrant display, and the higher resolution of the OnePlus 12R is a step up. The dramatically brighter display is also crucial for use in bright sunlight.
  4. Software Support: With the OnePlus 12R shipping with Android 14 and having future support for a longer time, it means I have a phone with the latest features for longer.
  5. Versatile Camera System: While the S21 5G has a dedicated telephoto lens, I personally find the wide-angle and macro lens options on the 12R more useful in daily scenarios, making the camera experience more versatile overall.

While I appreciate the compact form factor and the more vibrant AMOLED display of the Samsung Galaxy S21 5G, I feel the raw performance, battery life, charging speeds and more versatile camera system offered by the OnePlus 12R make it a better choice for my usage needs. The overall value and future-proofing aspect of the OnePlus 12R outweigh the benefits of the Samsung S21 5G 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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