Samsung Galaxy S21 Ultra 5G vs Nokia G21 - Detailed Phone Comparison

Detailed Comparison

Specification
Nokia G21
Nokia G21
Nokia

General

Launch Date January 29, 2021 February 15, 2022
Release Year 2021 2022

Physical

Volume 111.09 cm³ 106.19 cm³
Screen Size to Weight Ratio 3 "/g 3.42 "/g
Weight 227 g 190 g
Height 165.1 mm 164.6 mm
Width 75.6 mm 75.9 mm
Thickness 8.9 mm 8.5 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy
  • Dusk
  • Nordic Blue

Display

Screen Size 6.8 " 6.5 "
Resolution 1440 x 3200 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.4 % 81.6 %
Pixel Density 515 PPI 270 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A 400 nits
HBM Brightness N/A N/A
Peak Brightness 1500 nits N/A

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 119.53 mAh/in²
Battery Density 45.01 mAh/cm³ 47.56 mAh/cm³
Battery Capacity 5000 mAh 5050 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Unisoc T606 (12 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G57 MP1

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 11
Maximum OS Version 15 13

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21 Ultra 5G vs. Nokia G21

1. Specifications Comparison

FeatureSamsung Galaxy S21 Ultra 5GNokia G21Practical Impact
Design
Dimensions165.1 × 75.6 × 8.9 mm164.6 × 75.9 × 8.5 mmSimilar size, S21 Ultra slightly thicker, G21 slightly narrower.
Weight227g190gS21 Ultra is significantly heavier, G21 more comfortable for extended use.
Display
Size6.8"6.5"S21 Ultra has a slightly larger screen.
Resolution1440x3200720x1600S21 Ultra offers much sharper, clearer visuals.
Pixel Density515 PPI270 PPIS21 Ultra provides significantly greater detail and clarity.
TechnologyAMOLEDIPS LCDS21 Ultra offers deeper blacks, better contrast, and more vibrant colors.
Refresh Rate120Hz90HzS21 Ultra provides smoother scrolling and animations.
Brightness1500 nits0 nits (Value is missing, assuming lower)S21 Ultra is significantly brighter and more visible in direct sunlight.
Performance
ChipsetExynos 2100 (5 nm)Unisoc T606 (12 nm)S21 Ultra offers significantly faster processing for apps and games.
AnTuTu Score749,000253,300S21 Ultra is significantly faster in benchmarks.
GPUMali-G78 MP14Mali-G57 MP1S21 Ultra provides superior graphics performance for gaming and demanding tasks.
Camera
Rear Camera (Main)108MP, f/1.8, 1/1.33"50MP, f/1.8, 1/2.76"S21 Ultra captures more detailed images, especially in low light.
Telephoto Camera10.8MP (x2), f/2.4 & f/4.9Not availableS21 Ultra offers optical zoom for better close-up shots.
Wide Angle Camera12.2MP, f/2.2Not availableS21 Ultra captures wider scenes.
Macro CameraNot available2MP, f/2.4G21 captures close-up details.
Portrait Mode CameraNot available2MP, f/2.4G21 has dedicated depth sensor for portrait shots.
Selfie Camera44MP, f/2.28MP, f/2.0S21 Ultra captures much higher resolution selfies.
Video Recording8K@24fps, 4K@60fps1080p@30fpsS21 Ultra provides significantly better video quality, including 8K and advanced stabilization.
DXOMark (Mobile)115 (Overall), 121 (Photo), 100 (Video)Not testedS21 Ultra has been tested and scores well in camera performance.
DXOMark (Selfie)135 (Overall), 133 (Photo), 140 (Video)Not testedS21 Ultra has been tested and scores well in selfie camera performance.
Battery
Capacity5000 mAh5050 mAhSimilar battery capacity, comparable battery life.
Charging25W Fast Charging18W Fast ChargingS21 Ultra charges slightly faster.
Charging FeaturesWireless 15W, Reverse Wireless 9W, No charger in boxIn-box charger 10WS21 Ultra offers wireless charging and reverse wireless charging, but no charger included; G21 has charger in the box
Software
OSAndroid 11 (Upgradable to 15)Android 11 (Upgradable to 13)S21 Ultra has longer software support with Android 15.
Connectivity
WiFiWi-Fi 6 (802.11ax)802.11n 5GHzS21 Ultra offers faster Wi-Fi speeds.
Bluetooth5.25.0S21 Ultra offers better connectivity and features.
GPSDual-band GPSSingle-band GPSS21 Ultra provides greater location accuracy and faster GPS fix.
Storage
Internal Storage128/256/512 GB64/128 GBS21 Ultra has significantly higher storage options.
RAM12/16 GB4/6 GBS21 Ultra offers substantially more RAM for better multitasking.
Expandable StorageNoNoNeither phone supports expandable storage.
Audio
QualityDolby Atmos, Hi-Res, Stereo Speakers2 MicrophonesS21 Ultra has higher audio fidelity, clearer sound, and a better stereo experience.
Security
Featuresbasic fingerprint sensorSide-mounted fingerprint sensorG21 has a more advanced fingerprint sensor.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusUnknownS21 Ultra has superior screen protection.
Sensors
Compass, Gyroscope, BarometerAccelerometerS21 Ultra has more sensors for advanced features.

2. Key Differences Analysis

Samsung Galaxy S21 Ultra 5G Advantages:

  • Superior Display: AMOLED, higher resolution, higher refresh rate, and much higher brightness for excellent visuals and outdoor use.
  • Significantly Faster Performance: Much more powerful processor and GPU, making it ideal for heavy apps and gaming.
  • Advanced Camera System: Higher resolution main sensor, additional telephoto and wide-angle lenses, significantly better video recording and stabilization capabilities and better overall Dxomark scores.
  • Faster Charging & Wireless Charging: Supports faster 25W charging, and includes convenient 15W wireless charging and reverse wireless charging.
  • More RAM and Storage: Higher RAM options for better multitasking, and higher internal storage options.
  • Advanced Connectivity: Newer Wi-Fi and Bluetooth versions for faster speeds and better compatibility.
  • Better Audio: Enhanced sound quality with Dolby Atmos, Hi-Res Audio, and stereo speakers.
  • Longer Software Support Future software support with Android 15.
  • Better build quality Corning Gorilla Glass Victus for better protection

Practical Implications: The S21 Ultra is a top-tier device, excellent for power users, gamers, photography enthusiasts, and anyone who values top-of-the-line performance. The display alone provides a noticeably superior visual experience.

Nokia G21 Advantages:

  • Lighter Weight: More comfortable to hold for longer periods.
  • Lower Price: Significantly more affordable, making it accessible to budget-conscious consumers.
  • In-box charger: Charger included in the box.
  • Side-mounted fingerprint sensor More advanced fingerprint sensor.
  • Macro and Portrait camera The phone includes Macro and portrait mode cameras.

Practical Implications: The Nokia G21 is a good choice for users who need a reliable phone for basic tasks, with decent battery life, and a focus on budget. The inclusion of a charger in the box is a nice bonus.

Significant Trade-offs:

  • Display: The Nokia G21's display is noticeably inferior to the S21 Ultra, with lower resolution, brightness, and contrast.
  • Performance: The Nokia G21 is significantly slower and not suitable for demanding applications or gaming.
  • Camera: The Nokia G21's camera system is much less versatile and has significantly lower image quality.
  • Charging: Nokia G21's charging speeds are significantly lower.

3. User Profiles & Recommendations

Samsung Galaxy S21 Ultra 5G:

  • Ideal User: Power users, gamers, professional photographers, videographers, those who want the best possible user experience, or anyone who wants to have a top-tier smartphone.
  • Use Cases:
    • High-end mobile gaming
    • Professional photography and videography
    • Demanding multitasking
    • High-quality media consumption
    • Outdoor use with excellent visibility
  • Value: High price, but delivers a premium experience. Excellent if the budget allows.

Nokia G21:

  • Ideal User: Budget-conscious individuals, first-time smartphone users, people who need a basic smartphone for calling, texting, and light social media use.
  • Use Cases:
    • Everyday communication
    • Casual web browsing and social media
    • Light app usage
    • Long battery life needs
    • Users who appreciate the inclusion of a charger.
  • Value: Budget-friendly price, good for basic tasks.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The S21 Ultra is significantly more expensive than the G21.
  2. What are your primary use cases? Do you need top-tier performance and camera quality, or is basic functionality enough?
  3. How important is display quality and brightness? The S21 Ultra's screen is significantly superior.

Scenario-Based Recommendations:

  • Scenario 1: Professional Photography/Videography: Choose the Samsung Galaxy S21 Ultra 5G for its superior camera capabilities, including 8K video, optical zoom, and better image quality.
  • Scenario 2: High-End Gaming: Choose the Samsung Galaxy S21 Ultra 5G for its powerful processor, GPU, and high refresh rate display.
  • Scenario 3: Budget-Conscious User: Choose the Nokia G21 as it provides basic functionality at a much lower price.
  • Scenario 4: Bright Sunlight Outdoor Use: Choose the Samsung Galaxy S21 Ultra 5G for its very high peak brightness display.
  • Scenario 5: Basic Smartphone User with Long Battery Needs: Choose the Nokia G21 for its long battery life and practical features.

My Choice

If I were choosing between these two phones, I would choose the Samsung Galaxy S21 Ultra 5G. While it's significantly more expensive, the sheer difference in performance, display quality, camera capabilities, and overall user experience is worth the investment, assuming the budget is available. I value the ability to take high-quality photos and videos, engage in some mobile gaming, and enjoy a smooth and responsive user interface. The superior display on the S21 Ultra is a significant factor in my decision, as I spend a considerable amount of time using my phone for media consumption. The wireless charging, advanced connectivity options, and overall feature set also make it a superior phone despite its age. The Nokia G21 is a good budget phone, but it cannot compete with the level of technology and overall user experience that the Samsung offers.

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
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.