Apple iPhone 12 mini vs Samsung Galaxy S21 Ultra 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date November 13, 2020 January 29, 2021
Release Year 2020 2021

Physical

Volume 62.47 cm³ 111.09 cm³
Screen Size to Weight Ratio 4 "/g 3 "/g
Weight 135 g 227 g
Height 131.5 mm 165.1 mm
Width 64.2 mm 75.6 mm
Thickness 7.4 mm 8.9 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Green
  • Purple
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy

Display

Screen Size 5.4 " 6.8 "
Resolution 1080 x 2340 1440 x 3200
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 84.8 % 89.4 %
Pixel Density 476 PPI 515 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness 625 nits N/A
Peak Brightness 1200 nits 1500 nits

Hardware

Battery Capacity per Screen Area 76.37 mAh/in² 108.13 mAh/in²
Battery Density 35.65 mAh/cm³ 45.01 mAh/cm³
Battery Capacity 2227 mAh 5000 mAh
NFC Support Yes Yes
Chipset Apple A14 Bionic (5 nm) Exynos 2100 (5 nm) - International
CPU Hexa-core (2x3.1 GHz Firestorm + 4x1.8 GHz Icestorm) Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
GPU Apple GPU (4-core graphics) Mali-G78 MP14 - International

Connectivity

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

Software

Operating System iOS Android
Initial OS Version 14.1 11
Maximum OS Version 18 15

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the key specifications for the Apple iPhone 12 mini and the Samsung Galaxy S21 Ultra 5G, focusing on their practical impact:

FeatureApple iPhone 12 miniSamsung Galaxy S21 Ultra 5GPractical Impact
Design
Dimensions131.5 × 64.2 × 7.4 mm165.1 × 75.6 × 8.9 mmS21 Ultra is significantly larger, impacting one-handed use and pocketability; iPhone 12 mini is much more compact.
Weight135g227giPhone 12 mini is much lighter, more comfortable for extended use; S21 Ultra feels more substantial and potentially fatiguing.
Display
Size5.4"6.8"S21 Ultra's larger screen is better for media consumption and multitasking; iPhone 12 mini is more pocketable.
Resolution1080x23401440x3200S21 Ultra offers sharper visuals and more detail, especially for high-resolution content.
Pixel Density (PPI)476515S21 Ultra has a slightly sharper display, but both are excellent; the difference is not very noticeable to most users.
TechnologyOLEDAMOLEDBoth offer vibrant colors and deep blacks; quality is similar.
Refresh Rate60Hz120HzS21 Ultra provides smoother scrolling and animations, enhancing the overall user experience, especially for gaming and social media.
Brightness1200 nits1500 nitsS21 Ultra is significantly more visible in bright sunlight, crucial for outdoor use.
Performance
ChipsetApple A14 Bionic (5 nm)Exynos 2100 (5 nm)Different chipsets mean different architectures; iPhone 12 mini benchmarks show higher performance for app loading and general use.
AnTuTu Score1,072,354749,000iPhone 12 mini has higher raw performance; however, real world usage differences are not always noticeable.
GPUApple GPU (4-core graphics)Mali-G78 MP14Different GPUs affect graphics-intensive tasks such as gaming and video editing; Apple GPU is generally preferred for its efficiency.
Camera
Main Camera Resolution12MP108MPS21 Ultra captures much more detail in photos; iPhone 12 mini prioritizes pixel size for better low-light performance.
Main Camera Aperturef/1.6f/1.8iPhone 12 mini's wider aperture allows slightly more light, improving low-light photography
Main Camera Sensor Size1/2.55"1/1.33"S21 Ultra's larger sensor captures more light and detail.
Telephoto + Portrait CameraNone10.8MPS21 Ultra has a dedicated telephoto lens, allowing for optical zoom and better portrait shots; a significant advantage for photography enthusiasts.
Selfie Camera Resolution12MP44MPS21 Ultra takes much more detailed selfies
Telephoto LensNone10.8MPS21 Ultra's additional telephoto lens provides greater zoom capabilities for photos
Wide Angle Lens12MPNoneiPhone 12 mini has a dedicated ultra-wide lens for expansive shots.
Wide Angle + Macro LensNone12.2MPS21 Ultra's macro lens enables detailed close-up photography.
Video RecordingUp to 4K@60fps with HDRUp to 8K@24fps with HDRS21 Ultra offers 8K recording for professional-level video; both offer excellent stabilization.
Battery
Capacity2227mAh5000mAhS21 Ultra has much higher capacity, leading to significantly longer battery life. Actual results depend on usage.
Charging20W fast charging25W fast chargingS21 Ultra charges slightly faster; both support wireless charging.
Battery FeaturesMagSafe wireless charging, Qi wireless charging, adapter sold separately.Reverse charging, wireless charging 15W, reverse wireless charging 9W, No charger in-box.S21 Ultra can charge other devices wirelessly; iPhone 12 has MagSafe.
Software
Operating SystemiOS 14.1Android 11iOS provides smooth performance with a closed ecosystem; Android offers flexibility and customization.
Max OS VersioniOS 18Android 15iPhone 12 mini has an edge on long term support with a higher final software version number.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 6Similar standard, the S21 Ultra supports Wi-Fi direct and display.
Bluetooth5.1 LE5.2 LES21 Ultra has a more recent standard, more features for audio and connection.
SIMDual SIM (Nano + eSIM)Dual SIM (Nano + Nano)iPhone 12 mini supports eSim and can have two sim cards active at the same time.
Storage
Internal Storage64/128/256/512 GB128/256/512 GBBoth offer similar storage options, neither supports expandable storage.
RAM4GB12 or 16GBS21 Ultra offers significantly more RAM, enhancing multitasking capabilities.
Audio
Audio QualityDolby Atmos, Dolby Digital PlusDolby Atmos, Hi-Res AudioS21 Ultra offers higher quality audio; both have stereo speakers.
Security
Security FeaturesBasicFingerprint sensorS21 Ultra offers fingerprint unlock for added security, while the iPhone relies on facial recognition.
Build Quality
Screen ProtectionUnknownCorning Gorilla Glass VictusS21 Ultra has superior screen protection.

2. Key Differences Analysis

Apple iPhone 12 mini Advantages:

  • Compact Size and Lightweight: Significantly smaller and lighter, making it incredibly pocketable and easy to use one-handed.
    • Practical Implication: Ideal for users who prioritize portability and comfort, especially those with smaller hands.
  • Higher Benchmark Scores: Shows superior performance in synthetic benchmarks, which may translate to slightly faster app launching and smoother system operation.
    • Practical Implication: Might provide a snappier experience in daily usage, particularly for those who heavily multitask.
  • eSIM Support: Allows for greater flexibility with carrier switching and managing multiple phone numbers.
    • Practical Implication: Useful for frequent travelers or those who want to maintain separate personal and work numbers.
  • Potentially Better Long-Term Software Support: With a higher max OS version, the iPhone may get more long-term software updates.
    • Practical Implication: Longer device lifespan with security updates and feature enhancements.
  • MagSafe Charging: Offers a unique ecosystem of magnetic accessories, including convenient wireless charging.
    • Practical Implication: Easier and more reliable wireless charging experience and ecosystem accessories.

Samsung Galaxy S21 Ultra 5G Advantages:

  • Significantly Larger and Sharper Display: Provides an immersive visual experience, great for media consumption and productivity tasks.
    • Practical Implication: Ideal for those who frequently watch videos, play games, or need a larger workspace on their phone.
  • Higher Refresh Rate: 120Hz refresh rate provides significantly smoother scrolling and animations, making the phone feel more responsive.
    • Practical Implication: Better user experience for daily use like browsing, gaming and social media.
  • Superior Battery Life: Much larger battery capacity translates to significantly longer usage time between charges.
    • Practical Implication: Great for users who are always on the go and need all-day battery life.
  • Advanced Camera System: Offers superior zoom capabilities and greater versatility with multiple lenses, including a macro lens.
    • Practical Implication: Suitable for photography enthusiasts and anyone who wants to capture high-quality images in a variety of scenarios.
  • Reverse Wireless Charging: Can wirelessly charge other devices, such as earbuds or other phones, on the go.
    • Practical Implication: A handy feature for those with multiple wireless charging devices.
  • Fingerprint Sensor: Provides an alternative biometric method for unlocking the phone, useful in situations where face recognition might not be ideal.
    • Practical Implication: Provides extra security and convenience.
  • Higher RAM: Enables much more efficient multitasking and performance, especially for demanding apps and games.
    • Practical Implication: Allows for a smoother experience, especially for power users who need to run many apps simultaneously.
  • 8K Video Recording: Captures very high-resolution video for professional-grade content creation.
    • Practical Implication: Beneficial for content creators and videographers who need high-quality video footage.
  • Better Screen Protection: Corning Gorilla Glass Victus provides superior durability against drops and scratches.
    • Practical Implication: The screen is less likely to get damaged from daily usage and minor accidents.

Significant Trade-offs:

  • iPhone 12 mini: Smaller screen and battery, less versatile camera system, limited storage expansion, less RAM and lacks a fingerprint sensor.
  • Samsung Galaxy S21 Ultra 5G: Larger, heavier, less portable, and has a lower benchmark score than the iPhone.

3. User Profiles & Recommendations

Apple iPhone 12 mini is Ideal For:

  • Users with Small Hands: The compact size makes it easy to handle and use one-handed.
  • Users Prioritizing Portability: The lightweight and small dimensions make it perfect for carrying in a pocket or small bag.
  • Users in the Apple Ecosystem: Seamless integration with other Apple devices and services.
  • Users who want a high performance, smaller phone: Despite its size, it still provides excellent performance.
  • Users who need eSim: Dual Sim feature with eSim capabilities

Use Cases:

  • Everyday Carry: Easily fits in pockets, great for daily tasks like texting and browsing.
  • Commuters: Lightweight and compact, comfortable to use on public transport.
  • Minimalists: Perfect for users who prefer a simple, unobtrusive phone.
  • Fitness Enthusiasts: Comfortable to use during workouts and activities, and easy to take everywhere.

Samsung Galaxy S21 Ultra 5G is Ideal For:

  • Media Consumers: The large display and high-quality audio are perfect for watching videos, playing games, and browsing social media.
  • Productivity Users: The large screen allows for multitasking and working on the go.
  • Photography Enthusiasts: The versatile camera system with multiple lenses and advanced features will appeal to photographers.
  • Power Users: The high RAM and larger battery make it suitable for demanding tasks and longer usage.
  • Users who want maximum screen protection: Corning Gorilla Glass Victus offers extra durability for daily use.

Use Cases:

  • Content Creation: 8K video recording and multiple lenses are excellent for producing high-quality media.
  • Gaming: The large, high refresh rate display provides an immersive gaming experience.
  • Professional Use: The large screen, S Pen support, and multitasking features make it suitable for work-related tasks.
  • Travel: The long battery life and reverse charging capabilities are useful for travel scenarios.

4. Decision Framework

Key Questions to Consider:

  1. What is your priority: Portability or Immersive Display?
    • If portability and one-handed use are essential, the iPhone 12 mini is the clear choice. If you prioritize a large screen for media and productivity, the S21 Ultra is better.
  2. How important is battery life?
    • If you need all-day battery life, the S21 Ultra is significantly better. If you can easily access charging during the day, the iPhone 12 mini might be sufficient.
  3. How important is camera versatility?
    • If you want multiple lenses, zoom capabilities, and advanced photography features, the S21 Ultra is the better option. If you prioritize overall camera performance over features, both phones are a good choice.

Scenario-Based Recommendations:

  • Scenario 1: On-the-go user with small hands
    • Recommendation: iPhone 12 mini. Its compact size and light weight make it ideal for those who value portability and ease of use.
  • Scenario 2: Heavy media consumer who needs great battery life
    • Recommendation: Samsung Galaxy S21 Ultra 5G. The large display, excellent audio and long-lasting battery provide a better media experience.
  • Scenario 3: Photography enthusiast who wants maximum camera versatility
    • Recommendation: Samsung Galaxy S21 Ultra 5G. Its multiple lenses and advanced features provide a more versatile camera system than the iPhone.
  • Scenario 4: User who wants seamless integration with the Apple ecosystem and long term software support
    • Recommendation: iPhone 12 mini. Offers integration with Apple devices and has a higher max OS version.

My Choice and Why:

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

Here's why:

  1. Display and Media Consumption: I heavily prioritize media consumption, and the S21 Ultra's larger, sharper, and smoother 120Hz display would significantly enhance my viewing experience. The higher brightness would be beneficial for outdoor visibility.
  2. Battery Life: I often find myself away from charging sources, and the S21 Ultra's much larger battery would give me the peace of mind of an all-day charge.
  3. Camera Versatility: While I do not consider myself a professional photographer, I appreciate the flexibility provided by the multiple lenses and higher zoom capabilities of the S21 Ultra. The added ability to shoot in 8K would come in handy from time to time.
  4. Overall Performance: The higher RAM on the S21 Ultra would provide a more seamless experience when multitasking. The fingerprint sensor also provides extra convenience and security.
  5. Screen Protection: The superior screen protection offered by the Corning Gorilla Glass Victus is also a selling point for me as it would provide extra durability in case of minor accidents.

While the iPhone 12 mini has its advantages, such as portability, higher performance scores, and eSIM support, they are not my top priorities. For my use case, the S21 Ultra's strengths in display, battery, and camera are more compelling.

I acknowledge that the iPhone 12 mini would be a better choice for users who prioritize portability, compact size, and integration within the Apple ecosystem. However, the Samsung Galaxy S21 Ultra 5G aligns more closely with my personal priorities and use cases.

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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Bridging technical complexity with engaging, accessible narratives.