Samsung Galaxy S21 Ultra 5G vs OnePlus Nord N20 SE - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 August 8, 2022
Release Year 2021 2022

Physical

Volume 111.09 cm³ 98.28 cm³
Screen Size to Weight Ratio 3 "/g 3.51 "/g
Weight 227 g 187 g
Height 165.1 mm 163.8 mm
Width 75.6 mm 75 mm
Thickness 8.9 mm 8 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy
  • Blue Oasis
  • Celestial Black

Display

Screen Size 6.8 " 6.56 "
Resolution 1440 x 3200 720 x 1612
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.4 % 84.2 %
Pixel Density 515 PPI 269 PPI
Refresh Rate 120 Hz N/A
Typical Brightness N/A 480 nits
HBM Brightness N/A 600 nits
Peak Brightness 1500 nits N/A

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 116.19 mAh/in²
Battery Density 45.01 mAh/cm³ 50.88 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes No
Chipset Exynos 2100 (5 nm) - International Mediatek MT6765G Helio G35 (12 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU Mali-G78 MP14 - International PowerVR GE8320

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 12
Maximum OS Version 15

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21 Ultra 5G vs. OnePlus Nord N20 SE

1. Specifications Comparison

FeatureSamsung Galaxy S21 Ultra 5GOnePlus Nord N20 SEPractical Impact
Design
Dimensions165.1 × 75.6 × 8.9 mm163.8 × 75 × 8 mmS21 Ultra is slightly larger and thicker, may feel bulkier in hand.
Weight227g187gNord N20 SE is significantly lighter, more comfortable for extended use.
Display
Size6.8"6.56"S21 Ultra offers a larger screen for more immersive viewing.
Resolution1440x3200720x1612S21 Ultra has a much sharper display, text and images appear clearer.
Pixel Density (PPI)515269S21 Ultra display is considerably sharper, with finer details.
TechnologyAMOLEDIPS LCDS21 Ultra offers superior contrast, deeper blacks, and more vibrant colors.
Refresh Rate120Hz60HzS21 Ultra provides smoother scrolling and animations.
Brightness1500 nits0 nitsS21 Ultra is much more visible in bright sunlight. Note: OnePlus has an unspecified brightness.
Performance
ChipsetExynos 2100 (5 nm)Mediatek Helio G35 (12 nm)S21 Ultra is much faster, apps open quicker, and performs better in demanding tasks.
AnTuTu Score749,000221,000S21 Ultra has drastically better performance for gaming and multitasking.
GPUMali-G78 MP14PowerVR GE8320S21 Ultra has a more powerful GPU for graphics-intensive tasks.
Camera
Main Camera Resolution108MP50MPS21 Ultra captures more detailed images with a higher resolution sensor.
Main Camera Sensor Size1/1.33"1/2.76"S21 Ultra's larger sensor captures more light, resulting in better low-light performance.
Telephoto LensYes (10.8MP x2)NoS21 Ultra offers versatile zoom capabilities.
Ultrawide LensYes (12.2MP)NoS21 Ultra can capture wide scenes and close-up macro shots.
Selfie Camera Resolution44MP8MPS21 Ultra captures much more detailed selfies.
Selfie Camera Sensor Size1/2.65"1/4"S21 Ultra's larger sensor allows for better low-light selfie quality.
Front Camera Aperturef/2.2f/2.0OnePlus front camera lets slightly more light pass through.
Video Recording8K@24fps, 4K@60fps1080p@30fpsS21 Ultra can record higher resolution and smoother videos, with slow motion.
DxOMark Mobile115 (Overall), 121 (Photo), 100 (Video)Not testedS21 Ultra's camera performs better overall
DxOMark Selfie135 (Overall), 133 (Photo), 140 (Video)Not testedS21 Ultra selfie camera performs better overall
Additional FeaturesOIS, Laser AF, RAWCDAFS21 Ultra has more advanced camera features and control options
Battery
Capacity5000mAh5000mAhBoth offer similar battery capacity for all-day usage.
Charging Speed25W33WNord N20 SE charges faster, reducing downtime.
Wireless ChargingYes (15W)NoS21 Ultra offers convenient wireless and reverse wireless charging options.
Software
OSAndroid 11 (upgradeable to 15)Android 12Nord N20 SE has a newer base OS version out of the box. S21 Ultra can be upgraded to Android 15.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 5S21 Ultra has a faster Wi-Fi standard for quicker downloads.
Bluetooth5.25.3Nord N20 SE features newer Bluetooth version, potentially more efficient.
Storage
Internal Storage128/256/512 GB64/128 GBS21 Ultra offers significantly more storage space for media and apps.
RAM12/16 GB4 GBS21 Ultra has more RAM for smoother multitasking.
Expandable StorageNoNoNeither phone allows for external storage.
Audio
Audio FeaturesDolby Atmos, Hi-Res AudioBasic Stereo SpeakersS21 Ultra provides a more immersive and high-fidelity audio experience.
Security
Fingerprint SensorBasicSide-mountedNord N20 SE side fingerprint sensor might be faster and more convenient.
Build Quality
Screen ProtectionGorilla Glass VictusUnknownS21 Ultra has superior scratch and damage resistance for its display.
Sensors
SensorsAccelerometer, Compass, Gyroscope, BarometerAccelerometer, GyroscopeS21 Ultra has a wider sensor suite.
## 2. Key Differences Analysis

Samsung Galaxy S21 Ultra 5G Advantages:

  • Superior Display: Significantly sharper, more vibrant, and smoother (120Hz refresh rate). Much better visibility in bright sunlight.
  • Massive Performance Lead: Much faster processing power for all tasks including gaming and heavy apps.
  • Versatile Camera System: Higher resolution main camera, two telephoto lenses, ultrawide lens, resulting in better image quality, zoom capabilities, and video features. Advanced features such as OIS, laser AF, and RAW support for photography enthusiasts. Much better selfie camera.
  • Premium Build & Features: Wireless charging, reverse wireless charging, better screen protection, and more robust audio features.
  • More RAM and Storage: Offers significantly more RAM and storage options.
  • Advanced Sensors: Includes additional sensors useful for navigation and environmental readings.
  • Upgradable OS: Has upgrade to Android 15

OnePlus Nord N20 SE Advantages:

  • Lighter Weight: More comfortable for extended use.
  • Faster Charging: Charges the battery more quickly than the S21 Ultra.
  • Newer Bluetooth Version: More energy efficient and can use new Bluetooth features.
  • Side-Mounted Fingerprint: A more modern, and potentially faster and more convenient fingerprint placement.
  • Lower Price: Significantly more affordable, offering better value for budget-conscious users.
  • Newer OS: Newer base Android version

Significant Trade-offs:

  • S21 Ultra: Higher price, larger size and weight, no in-box charger.
  • Nord N20 SE: Significantly less powerful performance, lower quality display, inferior camera system, and lacks advanced features like wireless charging.

3. User Profiles & Recommendations

Samsung Galaxy S21 Ultra 5G Ideal User:

  • Power User: Needs top-tier performance for gaming, multitasking, and demanding apps.
  • Photography Enthusiast: Requires versatile camera system with advanced features and the best possible image quality.
  • Multimedia Consumer: Enjoys watching high-resolution videos, and wants a premium display experience.
  • Professional: Requires features like wireless charging, reverse wireless charging, and a premium build quality.
  • Users who want future OS Updates: The S21 can be upgraded to Android 15.

Use Cases:

*   High-end mobile gaming and running emulators
*   Professional photography and videography
*   Watching movies and shows on the go
*   Using the device for productivity and multitasking
*   Long term investment, wanting the latest software support

OnePlus Nord N20 SE Ideal User:

  • Budget-Conscious User: Looking for a functional smartphone at a lower cost.
  • Casual User: Primarily uses their phone for social media, browsing, and basic tasks.
  • First-Time Smartphone Buyer: Needs a simple and easy-to-use device without overwhelming features.
  • Users who don't require the highest performance: Not doing graphic intensive tasks or gaming.
  • Users who desire a lighter phone: Preferring a lighter phone that is easier to hold for a long period.

Use Cases:

*   Basic smartphone use, such as calls, texts, and emails.
*   Social media browsing and light internet use.
*   Watching casual videos
*   Everyday casual use for navigation, music playback, etc.
*   Long phone calls

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? If you have a limited budget, the Nord N20 SE is the clear choice.
  2. How important is performance? If you need a powerful phone for gaming, the S21 Ultra is necessary.
  3. How important is camera quality? If you value excellent photography capabilities, the S21 Ultra is far better.

Scenario-Based Recommendations:

  • Scenario 1: Budget-Conscious User: If you just need basic smartphone functionality without a lot of power, the OnePlus Nord N20 SE is more practical.

  • Scenario 2: Performance and Camera Focused: If you plan to play graphically intensive games, take a lot of photos, or use power-hungry applications, the Samsung Galaxy S21 Ultra 5G is the only sensible choice.

  • Scenario 3: Balance of Features and Affordability: This comparison doesn't fit this scenario, as both phones target different use cases. The Nord N20 SE is for the budget-conscious and the S21 Ultra 5G for power users, with limited overlap.

My Choice

If I were choosing between these two phones, I would choose the Samsung Galaxy S21 Ultra 5G.

Here's why:

  • I prioritize performance: I often use my phone for gaming, running demanding apps, and heavy multitasking, which the S21 Ultra handles flawlessly thanks to its superior chipset and RAM.
  • I value a high-quality display: The AMOLED display with its high resolution and refresh rate is much more enjoyable for viewing content and interacting with the phone.
  • I rely heavily on my phone's camera: The S21 Ultra's versatile camera system with its advanced features allows for far more flexibility and creativity when taking pictures and videos.
  • I want premium features: Wireless charging and reverse wireless charging are very convenient for my lifestyle.

While the OnePlus Nord N20 SE is certainly more affordable, the vast gap in performance, display quality, and camera capabilities makes the S21 Ultra the better choice for my specific needs and preferences, even at a higher price point. The S21 Ultra also has the benefit of future OS upgrades, offering a long term usability benefit.

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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