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

Detailed Comparison

Specification

General

Launch Date October 23, 2020 January 29, 2021
Release Year 2020 2021

Physical

Volume 77.62 cm³ 85.33 cm³
Screen Size to Weight Ratio 3.72 "/g 3.67 "/g
Weight 164 g 169 g
Height 146.7 mm 151.7 mm
Width 71.5 mm 71.2 mm
Thickness 7.4 mm 7.9 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Green
  • Purple
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink

Display

Screen Size 6.1 " 6.2 "
Resolution 1170 x 2532 1080 x 2400
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 87.1 % 85.9 %
Pixel Density 460 PPI 421 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness 625 nits N/A
Peak Brightness 1200 nits 1300 nits

Hardware

Battery Capacity per Screen Area 75.65 mAh/in² 104.06 mAh/in²
Battery Density 36.27 mAh/cm³ 46.88 mAh/cm³
Battery Capacity 2815 mAh 4000 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

Design

FeatureApple iPhone 12Samsung Galaxy S21 5GPractical Impact
Dimensions146.7 × 71.5 × 7.4 mm151.7 × 71.2 × 7.9 mmS21 5G is taller and slightly thicker; iPhone 12 may feel more compact in hand.
Weight164g169gNegligible weight difference; both feel relatively lightweight.
Build Quality (Screen)UnknownCorning Gorilla Glass VictusS21 5G likely more resistant to scratches and drops.

Display

FeatureApple iPhone 12Samsung Galaxy S21 5GPractical Impact
Size6.1"6.2"S21 5G offers a slightly larger viewing area, which is better for media consumption and gaming.
Resolution1170x25321080x2400iPhone 12 has a sharper display, potentially resulting in slightly clearer images and text.
PPI460421iPhone 12 displays finer details, though the difference is not drastic.
TechnologyOLEDAMOLEDBoth offer vibrant colors and deep blacks; virtually no practical difference in image quality.
Refresh Rate60Hz120HzS21 5G has smoother scrolling and animations, which improves responsiveness.
Brightness1200 nits1300 nitsS21 5G is more visible under direct sunlight.

Performance

FeatureApple iPhone 12Samsung Galaxy S21 5GPractical Impact
ChipsetApple A14 Bionic (5 nm)Exynos 2100 (5 nm) - InternationalA14 Bionic benchmarks higher, indicating potentially faster performance and efficiency.
Antutu Score1,083,947749,100iPhone 12 should feel snappier in everyday tasks and demanding applications.
GPUApple GPU (4-core graphics)Mali-G78 MP14 - InternationaliPhone 12 has better graphics which results in smoother gaming experience
RAM4 GB8 GBS21 5G handles multitasking and running multiple apps simultaneously more smoothly.

Camera

FeatureApple iPhone 12Samsung Galaxy S21 5GPractical Impact
Main Camera12MP, f/1.6, 1/2.55"12MP, f/1.8, 1/1.76"S21 5G has a larger sensor for better low-light performance; iPhone 12 has a wider aperture, helping in low light too.
TelephotoNone64MP, f/2.0, 1/1.72"S21 5G can capture zoomed-in photos with more detail.
Ultrawide12MP, f/2.412.2MP, f/2.2, 1/2.55"Both phones have similar wide angle camera.
Selfie12MP, f/2.210MP, f/2.2No significant difference in selfie quality; Apple iPhone 12 produces slightly higher resolution images.
VideoUp to 4K@60fpsUp to 8K@24fpsS21 5G captures much higher resolution videos, useful for professional video content.
DXOMark (Mobile)117111iPhone 12 has better overall camera performance and video
DXOMark (Selfie)132132Similar overall selfie quality, but S21 5G has better video.

Battery

FeatureApple iPhone 12Samsung Galaxy S21 5GPractical Impact
Capacity2815mAh4000mAhS21 5G offers significantly longer battery life, reducing the need for frequent charging.
Charging20W25WS21 5G charges slightly faster.
Wireless Charging15W (MagSafe), 7.5W (Qi)15WSimilar wireless charging speeds.
Reverse Wireless ChargingNoYes (4.5W)S21 5G can wirelessly charge other devices like earbuds.
Charger IncludedNoNoBoth phones do not include charger in the box

2. Key Differences Analysis

Apple iPhone 12 Advantages:

  • Superior Performance: A14 Bionic chipset provides significantly faster performance based on benchmarks. This translates to snappier app loading, smoother multitasking, and better gaming performance.
  • Better Camera Performance: Higher DXOMark scores, indicating better overall camera and video quality in many scenarios.
  • eSIM Support: Offers flexibility in choosing carriers, good for international travel.

Samsung Galaxy S21 5G Advantages:

  • Larger Battery: Significantly larger battery capacity results in much better battery life, especially for heavy users.
  • 120Hz Display: Smoother scrolling and animations.
  • Telephoto Lens: Offers more versatility in photography with optical zoom capabilities.
  • Reverse Wireless Charging: Useful for charging accessories like wireless earbuds on the go.
  • Expandable RAM: Has 8GB of RAM, better for multitasking

Trade-offs:

  • iPhone 12:
    • Smaller battery
    • Lower refresh rate display
  • Samsung Galaxy S21 5G:
    • Lower performance
    • No expandable storage

3. User Profiles & Recommendations

  • Apple iPhone 12:
    • Ideal User: Users deeply invested in the Apple ecosystem, those who prioritize performance and camera quality, value compact size, and prefer iOS.
    • Use Cases: Gaming, photography, videography, smooth multitasking, general daily usage.
  • Samsung Galaxy S21 5G:
    • Ideal User: Android enthusiasts, users who need all-day battery life, those who take advantage of telephoto lens capabilities, enjoy a smoother display, and prefer Android.
    • Use Cases: Media consumption, photography (especially zoomed-in shots), longer usage periods without charging, multitasking, and general daily usage.

4. Decision Framework

Key Questions to Consider:

  1. Performance or Battery Life? Do you prioritize raw performance and processing power (iPhone 12) or all-day battery life (S21 5G)?
  2. Ecosystem Preference? Are you heavily invested in the Apple (iPhone 12) or Android (S21 5G) ecosystem?
  3. Camera Versatility? Do you value telephoto lens capabilities (S21 5G) or overall better picture quality (iPhone 12)?

Scenario-Based Recommendations:

  • Heavy Gamer/Power User: iPhone 12 for its superior performance.
  • Frequent Traveler: iPhone 12 for its eSIM support.
  • All-Day User: Samsung Galaxy S21 5G for its longer battery life.
  • Photography Enthusiast: Samsung Galaxy S21 5G for its telephoto lens.

My Choice

I would choose the Samsung Galaxy S21 5G. Although the iPhone 12 has a better processor and camera, the S21 5G offers a much better display, and battery life. For my daily use, the longer battery life and smoother display would be more beneficial. In addition, I have a few wireless devices I can charge with reverse wireless charging.

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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