Samsung Galaxy S21 5G vs Asus ROG Phone 6 - Detailed Phone Comparison

Detailed Comparison

Specification

General

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

Physical

Volume 85.33 cm³ 137.21 cm³
Screen Size to Weight Ratio 3.67 "/g 2.84 "/g
Weight 169 g 239 g
Height 151.7 mm 173 mm
Width 71.2 mm 77 mm
Thickness 7.9 mm 10.3 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Storm White

Display

Screen Size 6.2 " 6.78 "
Resolution 1080 x 2400 1080 x 2448
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 82.2 %
Pixel Density 421 PPI 395 PPI
Refresh Rate 120 Hz 165 Hz
Typical Brightness N/A 800 nits
HBM Brightness N/A N/A
Peak Brightness 1300 nits 1200 nits

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 130.52 mAh/in²
Battery Density 46.88 mAh/cm³ 43.73 mAh/cm³
Battery Capacity 4000 mAh 6000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Mali-G78 MP14 - International Adreno 730

Connectivity

USB Version 3.2 3.1
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.2, OTG USB Type-C 3.1, OTG, Accessory Connector

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 15 13

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21 5G vs. Asus ROG Phone 6

1. Specifications Comparison

Here's a detailed comparison of the two phones, focusing on practical user experience:

FeatureSamsung Galaxy S21 5GAsus ROG Phone 6Practical Impact
Design
Launch Date2021-01-292022-07-13ROG Phone 6 is significantly newer, implying potentially longer software support and newer tech.
Dimensions151.7 x 71.2 x 7.9 mm173 x 77 x 10.3 mmS21 5G is more compact and easier to handle with one hand; ROG Phone 6 is larger, bulkier.
Weight169g239gS21 5G is much lighter, more comfortable for extended use. ROG Phone 6 is noticeably heavier.
Display
Size6.2"6.78"ROG Phone 6 offers a larger viewing area, better for media consumption and gaming; S21 5G is more pocketable.
Resolution1080 x 24001080 x 2448Both offer sharp visuals; minor difference is not noticeable in daily use.
Pixel Density421 ppi395 ppiS21 5G has slightly sharper text and images, although the difference is minimal.
TechnologyAMOLEDAMOLEDBoth have vibrant colors and deep blacks.
Refresh Rate120Hz165HzROG Phone 6 provides smoother scrolling and animations, particularly beneficial for gaming.
Brightness1300 nits1200 nitsS21 5G is slightly brighter, better visibility in direct sunlight.
Performance
ChipsetExynos 2100 (5 nm)Snapdragon 8+ Gen 1 (4 nm)ROG Phone 6 has a newer and more powerful chip, offering better performance and efficiency.
AnTuTu Score749,1001,203,000ROG Phone 6 has significantly higher performance, suitable for demanding tasks.
GPUMali-G78 MP14Adreno 730ROG Phone 6 has a more powerful GPU, better graphics performance for gaming.
Battery
Capacity4000mAh6000mAhROG Phone 6 has a much larger battery, likely offering significantly longer battery life.
Charging25W65WROG Phone 6 charges much faster, less time plugged in.
Features15W Wireless Charging, 4.5W Reverse Wireless, No ChargerBypass Charging, 10W Reverse ChargingS21 5G has wireless charging capabilities; ROG 6 has bypass charging to reduce heat generation while gaming and charging.
Camera
Main Camera12MP, f/1.8, 1/1.76", 1.8µm50MP, f/1.9, 1/1.56", 1.0µmROG Phone 6 has higher resolution and larger sensor, potentially better image quality; S21 has wider aperture for better low-light.
Telephoto64MPNoneS21 5G offers optical zoom capabilities, which is useful for far away objects.
Selfie10MP, f/2.2, 1/3.2", 1.22µm12MP, f/2.0, 1/2.93", 1.22µmROG Phone 6 has slightly higher resolution and a wider aperture, potentially better selfies.
Wide Angle12.2MP13MPROG Phone 6 features a dedicated ultrawide camera; S21 wide is combined with macro lens
MacroNone5MPROG Phone 6 features a dedicated macro camera; S21 wide is combined with macro lens
VideoUp to 8K@24fpsUp to 8K@24fpsBoth record high-resolution video with stabilization; ROG Phone 6 supports 120 fps for 4k recording
DXOMark Mobile111Not AvailableS21 5G has been benchmarked for camera performance (111), a general reference; No score for the Rog Phone 6.
DXOMark Selfie132Not AvailableS21 5G has been benchmarked for selfie camera performance (132). No score for the Rog Phone 6.
Camera FeaturesOIS, Continuous AF, Optical ZoomOISS21 5G has better zoom capabilities in its camera module.
Software
OSAndroid 11, max 15Android 12, max 13ROG Phone 6 ships with a newer OS but older max OS. S21 5G will likely have longer software support.
Connectivity
WiFiWiFi 6WiFi 6, Wi-Fi MiMOROG Phone 6 has slightly more advanced WiFi with MiMO.
Bluetooth5.05.2ROG Phone 6 has a newer and potentially more stable Bluetooth connection with better audio codec support.
GPSMultipleMultiple, NavICROG Phone 6 has support for a wider range of GPS constellations and NavIC for better location accuracy.
Storage
Internal128/256GB128/256/512GBROG Phone 6 offers up to 512GB storage, more capacity for large files.
RAM8GB8/12/16GBROG Phone 6 has more RAM options (12/16GB), enabling better multitasking.
ExpandableNoNoNeither phone supports external storage expansion.
Audio
QualityDolby AtmosDTS, Hi-Res Audio, 4 MicsROG Phone 6 features a more advanced audio system, with more mics for clear voice recording.
Security
FeaturesBasic Fingerprint SensorBasic Fingerprint SensorBoth use standard fingerprint sensors.
Build
ProtectionGorilla Glass VictusGorilla Glass VictusBoth have robust screen protection.
Sensors
FeaturesBarometerNoneS21 has barometer which can be used for altimeter and weather information.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Compact and Lighter Design: More comfortable for one-handed use and easier to carry.
  • Slightly Brighter Display: Better outdoor visibility in direct sunlight.
  • Wireless Charging: Offers convenience for charging on compatible pads.
  • Optical Zoom Camera: Telephoto lens with optical zoom capabilities for better long-range shots.
  • Barometer: Can measure atmospheric pressure to determine altitude and aid in weather predictions.

Asus ROG Phone 6 Advantages:

  • Superior Performance: The newer Snapdragon 8+ Gen 1 chip results in a 61% faster Antutu score, faster app loading, better multitasking, and superior gaming.
  • Larger Display: More immersive experience for gaming and media consumption.
  • Higher Refresh Rate: Smoother animations and a more responsive experience, particularly useful for gaming.
  • Significantly Larger Battery: Longer battery life, reducing the need to recharge as often.
  • Faster Charging: Significantly faster charging for less downtime.
  • Better Audio: DTS, Hi-Res Audio, and quad microphones improve audio playback and recording.
  • More RAM Options: Up to 16GB of RAM for better multitasking and more demanding games.
  • Dedicated Macro and Wide Angle Lenses Better for landscape and macro photos.
  • More Advanced GPS: Supports more satellite systems, improving location accuracy.
  • Bypass Charging: Can help mitigate thermal throttling by powering the phone directly from the charger instead of the battery.

Significant Trade-offs:

  • Samsung S21 5G: Lacks the gaming-centric features of the ROG Phone 6, has a smaller battery and is less powerful, not ideal for heavy gaming.
  • Asus ROG Phone 6: Significantly larger and heavier than the S21 5G and does not have wireless charging

3. User Profiles & Recommendations

Samsung Galaxy S21 5G is ideal for:

  • General users who prioritize a balance of performance, camera capabilities, and a compact, lightweight design.
  • Users who prefer a smaller phone that is easy to handle and carry.
  • Users who value the convenience of wireless charging.
  • Users who often take photos and videos in a variety of situations, especially those who use a telephoto lens.

Specific Use Cases:

  • Daily Communication: Excellent for calls, texts, emails, and social media.
  • Casual Photography: Good for everyday photos and videos, especially with optical zoom.
  • General Media Consumption: Suitable for watching videos and browsing the web.

Asus ROG Phone 6 is ideal for:

  • Hardcore Gamers who need the best possible performance, smooth display, and long battery life.
  • Power Users who require a large screen and powerful processor for intensive tasks.
  • Users who prioritize battery life and fast charging.
  • Users who value superior audio for gaming and media consumption.
  • Users who require a macro and wide angle camera lens for diverse photo opportunities.

Specific Use Cases:

  • High-End Gaming: Excellent performance for demanding games at high refresh rates.
  • Multitasking: Runs multiple apps simultaneously without performance issues.
  • Media Consumption: Large, vibrant screen for an immersive movie-watching experience.
  • Video Recording: Records smooth 4k 120fps video for professional results.

4. Decision Framework

Key Questions for Buyers:

  1. What is my primary use case? (Gaming, general use, photography, battery)
  2. Do I prefer a compact phone or one with a large display?
  3. How important are features like wireless charging vs. superior performance and battery life?

Scenario-Based Recommendations:

  • Scenario 1: Casual User Seeking a Balanced Phone: If you primarily use your phone for communication, social media, and basic photography, the Samsung Galaxy S21 5G is a good choice with its balance of features and compact design.
  • Scenario 2: Heavy Gamer Seeking Top Performance: If you are a serious mobile gamer who prioritizes top performance, smooth gameplay, long battery life and a wide angle lens the Asus ROG Phone 6 is the superior choice.
  • Scenario 3: Power User on the Go: If you require long battery life, a large display, and the ability to multitask and run demanding applications, the Asus ROG Phone 6 is the best option.

My Choice

I would personally choose the Asus ROG Phone 6. While the Samsung Galaxy S21 5G is a well-rounded phone, the ROG Phone 6's focus on performance, battery life, and a more immersive experience caters to my preference for a device that can handle demanding tasks and long hours of use. As someone who often games on my phone and consumes a lot of media, the larger screen, higher refresh rate, and superior performance offered by the ROG Phone 6 make it the more suitable device for my needs. The lack of wireless charging is a sacrifice I'm willing to make for the benefits I'd receive in other areas.

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
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Bridging technical complexity with engaging, accessible narratives.