Samsung Galaxy S21 Ultra 5G vs Samsung Galaxy A72 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 March 26, 2021
Release Year 2021 2021

Physical

Volume 111.09 cm³ 107.28 cm³
Screen Size to Weight Ratio 3 "/g 3.3 "/g
Weight 227 g 203 g
Height 165.1 mm 165 mm
Width 75.6 mm 77.4 mm
Thickness 8.9 mm 8.4 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy
  • Awesome Black
  • Awesome White
  • Awesome Blue
  • Awesome Violet

Display

Screen Size 6.8 " 6.7 "
Resolution 1440 x 3200 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.4 % 84.9 %
Pixel Density 515 PPI 394 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 800 nits
Peak Brightness 1500 nits N/A

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 111.38 mAh/in²
Battery Density 45.01 mAh/cm³ 46.61 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM7125 Snapdragon 720G (8 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
GPU Mali-G78 MP14 - International Adreno 618

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 12

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21 Ultra 5G vs. Samsung Galaxy A72

1. Specifications Comparison

FeatureSamsung Galaxy S21 Ultra 5GSamsung Galaxy A72Practical Impact
Design
Dimensions165.1 x 75.6 x 8.9 mm165 x 77.4 x 8.4 mmS21 Ultra is slightly thicker, A72 is slightly wider. Minimal difference in overall size, might affect one-handed comfort for some.
Weight227g203gA72 is noticeably lighter, making it more comfortable for extended use and less tiring.
Display
Size6.8"6.7"Very similar screen size, negligible difference for most users.
Resolution1440 x 32001080 x 2400S21 Ultra has a significantly sharper display, noticeable difference in text clarity and image detail.
Pixel Density (PPI)515394S21 Ultra's higher pixel density results in a crisper, more detailed viewing experience.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks, very similar visual quality.
Refresh Rate120Hz90HzS21 Ultra has smoother scrolling and animations, more fluid visual experience, particularly for gamers and those who scroll often.
Brightness1500 nits800 nitsS21 Ultra is much brighter, significantly better visibility in bright outdoor conditions.
Performance
ChipsetExynos 2100 (5nm)Snapdragon 720G (8nm)S21 Ultra's chipset is considerably more powerful, resulting in faster app loading, smoother multitasking, and higher gaming performance.
AnTuTu Score749,000285,000S21 Ultra is significantly faster in all areas, especially noticeable in demanding tasks and gaming.
GPUMali-G78 MP14Adreno 618S21 Ultra's GPU provides significantly better graphics performance, noticeable in gaming and graphics-intensive apps.
Camera
Standard Camera Resolution108MP64MPS21 Ultra captures more detail, allowing for greater flexibility in editing and cropping.
Standard Camera Sensor Size1/1.33"UnknownS21 Ultra's larger sensor captures more light, resulting in better low-light performance.
Telephoto + Portrait Camera10.8MP, 1/2.65" sensor8MP, 1/4.4" sensorS21 Ultra's telephoto lens offers better zoom quality, and the larger sensor results in better detail.
Selfie Camera Resolution44MP32MPS21 Ultra captures more detailed selfies.
Telephoto LensYesNoS21 Ultra has a dedicated telephoto camera with 10x optical zoom.
Wide Angle LensNoYesA72 includes a dedicated wide-angle lens for capturing more landscape, while the S21 Ultra has a combined wide-angle/macro lens.
Macro LensNoYesA72 has a dedicated macro lens for close-up shots.
Wide Angle + Macro CameraYesNoS21 Ultra combines wide angle and macro into one versatile lens
Video RecordingUp to 8K@24fpsUp to 4K@30fpsS21 Ultra offers higher resolution video and better features.
DxoMark Mobile Score11592S21 Ultra has significantly better camera performance according to DxOMark.
Battery
Capacity5000mAh5000mAhBoth have similar battery capacity, expected to have similar battery life depending on usage patterns.
Charging25W Fast Charging25W Fast ChargingBoth phones have the same fast charging capabilities.
Wireless Charging15W (S21 Ultra)NoS21 Ultra supports wireless charging.
Reverse ChargingYes (S21 Ultra)NoS21 Ultra can charge other devices wirelessly.
In-box ChargerNo (S21 Ultra)15W charger (A72)A72 includes a charger, S21 Ultra does not.
Software & Connectivity
OSAndroid 11 (upgradeable to 15)Android 11 (upgradeable to 12)S21 Ultra will likely receive software updates for a longer period of time.
WiFiWiFi 6 (S21 Ultra)WiFi 5 (A72)S21 Ultra has faster and more stable WiFi, particularly useful for gaming and large file transfers.
BluetoothBluetooth 5.2Bluetooth 5.0S21 Ultra has the latest version of Bluetooth.
GPSGPS (L1+L5), Galileo (E1+E5a) (S21 Ultra)GPS, GLONASS, Beidou, Galileo (A72)S21 Ultra has dual-band GPS and enhanced positioning accuracy.
Storage
Internal Storage128/256/512 GB128/256 GBS21 Ultra has more storage options, including a 512GB option for users who need a lot of local storage.
RAM12/16 GB6/8 GBS21 Ultra has much more RAM, allowing for smoother multitasking and running demanding apps.
Expandable StorageNoNoNeither phone allows expandable storage via microSD.
Audio & Security
AudioHi-Res Audio, Noise cancellation (S21 Ultra)Dolby AtmosS21 Ultra has enhanced audio quality and noise cancellation.
SecurityBasic fingerprint sensorBasic fingerprint sensorSimilar fingerprint sensor technology in both phones.
Build Quality
Screen ProtectionGorilla Glass Victus (S21 Ultra)UnknownS21 Ultra has superior screen protection and increased durability.
Sensors
SensorsBarometer (S21 Ultra)No BarometerS21 Ultra has a more complete sensor package.

2. Key Differences Analysis

Samsung Galaxy S21 Ultra 5G Advantages:

  • Superior Performance: The Exynos 2100 chipset offers significantly faster processing speed, better multitasking, and superior gaming performance compared to the Snapdragon 720G.
  • Significantly Better Display: Higher resolution, higher pixel density, higher brightness and a 120Hz refresh rate make the display much sharper, smoother, and better in outdoor conditions.
  • More Advanced Camera System: The S21 Ultra offers higher resolution standard, telephoto, and selfie cameras, along with a dedicated telephoto lens, more advanced video capabilities (including 8K), and better overall image quality.
  • Better Battery Features: Wireless charging and reverse wireless charging add convenience that the A72 lacks, but does not come with a charger in the box.
  • More Future-Proof: With a newer OS and higher maximum upgrade version, better WiFi version, Bluetooth version, the S21 Ultra will likely receive updates and be relevant for longer.
  • Hi-Res Audio: Enhanced audio experience with Hi-Res audio capabilities and noise cancelling microphone.
  • Screen Protection: Corning Gorilla Glass Victus protection offers enhanced durability.

Samsung Galaxy A72 Advantages:

  • Lighter and Potentially More Comfortable: The A72 is noticeably lighter than the S21 Ultra, which might be preferred by users who prioritize comfort and ease of handling.
  • Includes a charger in-box: A72 includes a 15W Fast Charger in-box.
  • Dedicated Macro and Wide Angle Lens: If you frequently take close-up or wide-angle shots, the A72's dedicated lenses might appeal. While the S21 Ultra offers wide angle and macro combined, it is not separated.

Significant Trade-offs:

  • Performance vs Price: The S21 Ultra offers high-end performance at a premium price, while the A72 sacrifices some performance for a more affordable price.
  • Camera Versatility vs Quality: While the A72 has dedicated wide angle and macro lens, the S21 Ultra's camera system is significantly better in terms of overall image and video quality.
  • Premium Build vs Practicality: The S21 Ultra offers a more premium build with better screen protection, while the A72 prioritizes comfort and lightweight design.

3. User Profiles & Recommendations

Samsung Galaxy S21 Ultra 5G Ideal User:

  • Power Users: Those who demand top-tier performance for gaming, video editing, and heavy multitasking.
  • Photography Enthusiasts: Users who prioritize image quality and want the best possible camera experience on a smartphone.
  • Professional Users: Those who need a high-resolution display, advanced connectivity features and video capabilities.
  • Users wanting more features: People who prefer to have more features on their phone regardless of price point.
  • Tech-Savvy Individuals: Users who appreciate the latest technology and don't mind paying a premium for it.
    • Specific Use Cases:
      • Demanding mobile gaming with high frame rates.
      • Capturing and editing high-resolution photos and 8K videos.
      • Working on the go with resource-intensive applications.
      • Outdoor use in bright sunlight.

Samsung Galaxy A72 Ideal User:

  • Budget-Conscious Users: Those who want a reliable smartphone with a good set of features at a more affordable price.
  • Everyday Users: Individuals who need a comfortable and capable phone for daily tasks like browsing, social media, and casual photography.
  • Users Who Prioritize Battery Life and Ergonomics: People who value lightweight design and comfortable handling, along with a charger in-box.
    • Specific Use Cases:
      • Casual photography, including macro and wide-angle shots.
      • Everyday tasks, like social media browsing, emails, and calls.
      • Users who don't need the highest possible performance and are ok with mid-range performance.
      • Users who need a charger included in the box.

4. Decision Framework

Key Questions for Buyers:

  1. What is your primary use case? (Gaming, photography, general use, work)
  2. What is your budget? (Do you prioritize performance or cost?)
  3. What are your priorities? (Premium features, battery, comfort, size)

Scenario-Based Recommendations:

  • If you prioritize ultimate performance, camera quality, and a premium display, and don't mind paying a premium, the Samsung Galaxy S21 Ultra 5G is the best choice.
  • If you want a good all-around phone with a comfortable design, a decent camera and are on a tighter budget, the Samsung Galaxy A72 is a great option.
  • If you frequently take close-up or wide-angle shots, and prefer a dedicated macro and wide lens, the Samsung Galaxy A72 could be considered.
  • If battery features like wireless and reverse wireless charging are important, the Samsung Galaxy S21 Ultra 5G is better.

My Choice: Samsung Galaxy S21 Ultra 5G

If I were choosing between these two phones, I would pick the Samsung Galaxy S21 Ultra 5G. My reasons are as follows:

  • Performance is a priority: I frequently run demanding apps, game, and multitask, so the S21 Ultra's superior processor and RAM are critical.
  • Camera versatility: While the A72 has dedicated macro and wide-angle, the S21 Ultra’s camera system provides vastly superior image and video quality, and while I do not use macro and wide angle shots frequently, I prioritize overall camera quality.
  • Display Quality: The sharper, brighter display with a higher refresh rate would significantly improve my user experience, especially for outdoor use and content consumption.
  • Future proofing: The S21 Ultra comes with better WiFi and Bluetooth technologies, more OS upgrades and better software features.

While the A72 is lighter and comes with a charger in-box, the benefits of the S21 Ultra's performance, display, camera, and overall premium experience outweigh the additional cost for me. Although the price of the S21 Ultra is higher, the phone is significantly superior in several areas that are important to 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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