Samsung Galaxy S21 5G vs Google Pixel 7 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 October 13, 2022
Release Year 2021 2022

Physical

Volume 85.33 cm³ 99.09 cm³
Screen Size to Weight Ratio 3.67 "/g 3.2 "/g
Weight 169 g 197 g
Height 151.7 mm 155.6 mm
Width 71.2 mm 73.2 mm
Thickness 7.9 mm 8.7 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Obsidian
  • Snow
  • Lemongrass

Display

Screen Size 6.2 " 6.3 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 84.1 %
Pixel Density 421 PPI 416 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1000 nits
Peak Brightness 1300 nits 1400 nits

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 109.73 mAh/in²
Battery Density 46.88 mAh/cm³ 43.95 mAh/cm³
Battery Capacity 4000 mAh 4355 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Google Tensor G2 (5 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.85 GHz Cortex-X1 & 2x2.35 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G710 MP7

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 13
Maximum OS Version 15 14

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S21 5GGoogle Pixel 7Practical Impact
Design
Dimensions151.7 x 71.2 x 7.9 mm155.6 x 73.2 x 8.7 mmPixel 7 is slightly larger and thicker, may be less comfortable for small hands.
Weight169g197gS21 5G is significantly lighter, better for one-handed use and extended holding.
Display
Size6.2"6.3"Negligible difference, both are very similar.
Resolution1080 x 24001080 x 2400Identical sharpness, no visible difference.
PPI421416Practically identical pixel density, both screens appear sharp.
TechnologyAMOLEDAMOLEDIdentical technology, expect vibrant colors and deep blacks on both.
Refresh Rate120Hz90HzS21 5G offers smoother scrolling and animations; Pixel 7 will feel slightly less fluid in comparison.
Brightness1300 nits1400 nitsPixel 7 is slightly brighter, potentially more visible in direct sunlight.
Performance
ChipsetExynos 2100 (5 nm)Google Tensor G2 (5 nm)Pixel 7 is expected to offer slightly better performance overall and better optimized AI tasks.
AnTuTu Score749,100827,033Pixel 7 has marginally higher benchmark score, translates to slightly snappier overall performance.
GPUMali-G78 MP14Mali-G710 MP7Pixel 7's GPU is expected to perform slightly better in graphically intensive tasks like gaming.
Camera
Main Camera Resolution12MP50MPPixel 7 captures more detail, better for cropping and large prints; S21 5G better in low light with larger pixel size.
Main Camera Sensor Size1/1.76"1/1.31"Pixel 7's larger sensor gathers more light, better for overall image quality.
Main Camera Pixel Size1.80 µm1.20 µmS21 5G will capture more light per pixel which can result in better low-light images.
Telephoto LensYesNoS21 5G offers dedicated optical zoom capabilities.
Wide Angle LensNoYesPixel 7 has an ultrawide for landscape/group shots.
Wide Angle + Macro lensYesNoS21 5G offers macro capability for close-up shots.
Selfie Camera Resolution10MP10.8MPPractically similar resolution in selfie camera.
Selfie Camera Sensor Size1/3.2"1/2.65"Pixel 7's larger sensor captures more light in selfies
Video ResolutionUp to 8KUp to 4KS21 5G capable of recording videos at 8K, but both offer excellent 4K video.
DXOMark Mobile Score111140Pixel 7's camera is significantly better based on DXOMark.
DXOMark Selfie Score132138Both have very similar selfie camera performance.
Battery
Capacity4000 mAh4355 mAhPixel 7 has slightly larger battery; may offer marginally better battery life in normal usage.
Charging Speed25W20WS21 5G charges slightly faster.
Wireless Charging15W23WPixel 7 has faster wireless charging capability.
Software
Operating SystemAndroid 11, upgradable to 15Android 13, upgradable to 14Pixel 7 starts with a newer Android version out of the box.
Connectivity
Bluetooth5.05.2Pixel 7 has newer, more efficient bluetooth version.
SIMDual Nano SIMNano SIM + eSIMPixel 7 supports eSIMs.
Storage
Internal Storage128GB/256GB128GB/256GBBoth offer identical storage configurations.
RAM8GB8GBBoth have similar performance in multitasking.
Expandable StorageNoNoNeither phone supports microSD cards for additional storage.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Lighter and more compact: More comfortable for one-handed use and extended periods of use.
  • Higher refresh rate display: Smoother scrolling and animations, better for gaming.
  • Faster wired charging: Charges slightly faster with 25W vs 20W.
  • 8K Video Recording: Offers higher resolution video recording for professional use cases.
  • Telephoto camera lens: Offers dedicated optical zoom, useful for zoomed shots and portrait.
  • Macro Camera: Offers macro lens for detailed close-up shots.
  • More Bluetooth Audio Profiles: Supports various Bluetooth audio profiles for more versatility.

Practical Implications for Samsung Galaxy S21 5G:

  • Better for users who prefer smaller, lighter devices.
  • Better for gamers looking for a smoother display.
  • Those needing a more diverse camera setup will be more interested in this phone's telephoto and macro cameras.

Google Pixel 7 Advantages:

  • Newer Processor: Tensor G2 provides better AI and overall performance.
  • Larger Main Camera Sensor: Improved image quality, especially in low light.
  • Higher resolution main camera: Captures more detail in photos.
  • Wide Angle Lens: Offers wider perspective in photos.
  • Better benchmark scores: Slightly snappier and smoother day to day experience.
  • Larger Battery: Potentially longer battery life.
  • Faster Wireless Charging: Wireless charging is faster and more efficient.
  • Newer Bluetooth version: More efficient power consumption with Bluetooth 5.2.
  • Better DXOMark score: Significantly better overall camera performance.
  • eSIM Support: More flexible for international travel or multiple carriers.
  • Newer OS out of the box: Longer software support.

Practical Implications for Google Pixel 7:

  • Better for users who want an outstanding camera with great AI features.
  • Better for users who want a bit more battery life.
  • Better for those who want to experience the latest Android features.

Trade-offs:

  • The S21 5G provides a smoother display and a telephoto camera, but the Pixel 7's camera is significantly better.
  • The Pixel 7 has a slightly larger size and weight, but has superior camera performance.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G is ideal for:

  • Users who prefer a smaller, lighter phone that is more comfortable to hold for extended periods.
  • Gamers who value the smoother 120Hz display for enhanced gaming visuals.
  • Users who want a versatile camera system with both telephoto and macro capabilities.
  • Users that prioritize slightly faster wired charging capabilities.
  • Users that are looking for a phone at a potentially lower price point.

Use Cases for Samsung Galaxy S21 5G:

  • Casual gaming and entertainment consumption with smoother display.
  • Photography with optical zoom and macro capabilities for detailed shots.
  • Users needing a more versatile Bluetooth audio connection.

Google Pixel 7 is ideal for:

  • Photography enthusiasts seeking the best image quality and advanced software features.
  • Users wanting a more powerful phone with the latest AI capabilities.
  • Users wanting the most recent OS and longer software support.
  • Users needing a longer battery life.
  • Users looking to use digital SIMs or eSIMs.
  • Those who want to experience a pure Android experience.

Use Cases for Google Pixel 7:

  • Serious photography, capturing high-quality images in various conditions.
  • Users who enjoy AI-powered features and want the latest and greatest in Android.
  • International travelers and those wanting to switch between carriers easily.
  • Those who frequently rely on wireless charging capabilities.

4. Decision Framework

Key Questions for Buyers:

  1. What do you value most in a smartphone camera?
    • If you need optical zoom and macro, the S21 5G is better.
    • If you want the best image quality and AI features, the Pixel 7 is the better option.
  2. Do you prefer a more compact and lightweight design, or a bigger screen with a longer battery?
    • The S21 5G is lighter and more compact.
    • The Pixel 7 is heavier, but offers a better battery life.
  3. Do you prioritize software and software updates, or slightly faster charging?
    • The Pixel 7 offers a newer OS and will get updates for a longer period.
    • The S21 5G offers slightly faster wired charging.

Scenario-Based Recommendations:

  • Scenario 1: Casual User (Social media, browsing): Both phones are suitable, but the S21 5G's lighter weight and more compact design could be preferable.
  • Scenario 2: Photography Enthusiast: The Google Pixel 7 is the clear winner due to its superior camera performance.
  • Scenario 3: Gamer: The S21 5G with its smoother display may be the better choice.
  • Scenario 4: Power User: The Google Pixel 7 offers better performance and a slightly larger battery.
  • Scenario 5: Budget Conscious: The S21 5G is likely to have dropped in price, making it a compelling choice for those on a tighter budget.

My Choice

If I were choosing between these two phones, I would choose the Google Pixel 7. While the Samsung Galaxy S21 5G offers a lighter build and a smoother 120Hz display, the Pixel 7's advantages are more compelling for me.

My decision is driven primarily by camera performance. The Google Pixel 7's camera, with its larger sensor, higher resolution, superior DXOMark score, and AI-powered features, significantly outweighs the S21 5G's camera system. While the S21 5G's telephoto and macro lens offers some versatility, the Pixel 7's overall image quality, dynamic range, and post-processing capabilities would be preferable for me.

The slightly larger battery and newer processor of the Pixel 7 also factor into my decision. Although the S21 5G has a slightly faster wired charging, the enhanced battery life and more efficient wireless charging on the Pixel 7 are more useful to me. Furthermore, I appreciate the Pixel 7’s pure Android experience and extended software support. Although the S21 5G is lighter, the performance and camera benefits of the Pixel 7 outweigh the size difference for me.

Ultimately, my priority lies with camera performance and software. The Google Pixel 7's camera system is a significant leap over the Samsung S21 5G making it the better pick for my use case.

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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  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.