Samsung Galaxy S21 5G vs Samsung Galaxy A33 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 April 20, 2022
Release Year 2021 2022

Physical

Volume 85.33 cm³ 95.72 cm³
Screen Size to Weight Ratio 3.67 "/g 3.44 "/g
Weight 169 g 186 g
Height 151.7 mm 159.7 mm
Width 71.2 mm 74 mm
Thickness 7.9 mm 8.1 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Black
  • Blue
  • White
  • Peach

Display

Screen Size 6.2 " 6.4 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 83.7 %
Pixel Density 421 PPI 411 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1300 nits N/A

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 122.07 mAh/in²
Battery Density 46.88 mAh/cm³ 52.23 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Exynos 1280 (5 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G68

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 12
Maximum OS Version 15 16

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S21 5GSamsung Galaxy A33 5GPractical Impact
Design
Dimensions151.7 x 71.2 x 7.9 mm159.7 x 74 x 8.1 mmS21 is more compact and easier to handle, while A33 is larger and may be less comfortable for smaller hands.
Weight169g186gS21 is significantly lighter, making it more comfortable for extended use and pocketable.
Display
Size6.2"6.4"A33 has a slightly larger screen, which can be better for media consumption.
Resolution1080 x 24001080 x 2400Both have the same sharpness.
Pixel Density421 PPI411 PPIVirtually indistinguishable sharpness in daily use.
TechnologyAMOLEDAMOLEDBoth have vibrant colors, deep blacks, and excellent viewing angles.
Refresh Rate120Hz90HzS21 provides smoother scrolling and animations, especially noticeable during gaming and fast-paced UI interactions.
Brightness1300 nits0 nits (Not provided)S21 is much brighter, offering significantly better outdoor visibility in bright sunlight. A33 brightness is not provided and will impact the outdoor usability.
Performance
ChipsetExynos 2100 (5 nm)Exynos 1280 (5 nm)S21's chipset is significantly more powerful, resulting in faster app loading, smoother multitasking, and better gaming performance.
AnTuTu Score749,100475,448S21 scores much higher, indicating much better performance overall.
GPUMali-G78 MP14Mali-G68S21's GPU is more powerful, providing better graphics in gaming and video editing.
Camera
Standard Camera12MP, 1/1.76" sensor48MP, 1/2" sensorA33 has a higher resolution sensor, but S21 has a larger sensor for better light gathering and image quality in some conditions.
Telephoto/Portrait Camera64MPNot PresentS21 has dedicated telephoto lens, improving zoom quality.
Selfie Camera10MP, 1/3.2" sensor13MP, 1/3.06" sensorA33 has slightly higher resolution selfie camera.
Wide Angle LensNot Present8MPA33 has wide angle lens for capturing expansive landscape.
Portrait (Depth)Not Present2MPA33 has a dedicated depth sensor for improved portrait mode.
Macro LensNot Present5MPA33 has a dedicated macro lens for detailed close-up shots.
Wide Angle + Macro12.2MPNot PresentS21 combines wide angle and macro capabilities into one lens.
Video RecordingUp to 8K @ 24fpsUp to 4K @ 30fpsS21 offers higher video resolution and frame rate options for more professional-looking footage.
DxOMark Mobile Score11185S21 scores higher in photo and video quality.
DxOMark Selfie Score132Not testedS21 scores higher in selfie photo and video quality.
Battery
Capacity4000mAh5000mAhA33 has a significantly larger battery which should result in longer battery life.
Charging25W Fast Charging25W Fast ChargingBoth offer similar fast-charging capabilities.
Battery FeaturesWireless charging, Reverse chargingBypass chargingS21 offers more versatile charging options, including wireless and reverse wireless charging.
Software
OSAndroid 11Android 12A33 launches with a newer version of Android.
Max OS Version1516Both are planned to have several years of updates.
Connectivity
Wi-FiWi-Fi 6 (802.11ax)802.11acS21 supports the latest Wi-Fi standard for faster speeds and better performance on compatible networks.
Bluetooth5.0 LE5.1A33 has a slightly newer version of Bluetooth.
Storage
Internal128 GB/256 GB128 GB/256 GBBoth offer the same storage options.
RAM8 GB6 GB or 8 GBS21 offers 8GB standard while A33 is configurable.
ExpandableNoNoNeither phone offers expandable storage.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Significantly More Powerful Performance: The Exynos 2100 chipset and higher AnTuTu score translate to faster app loading, smoother multitasking, and a better gaming experience.
  • Superior Display: Higher 120Hz refresh rate and much higher brightness (1300 nits) result in a smoother and more visible display, especially in bright sunlight.
  • Better Camera System: The inclusion of a telephoto lens, coupled with higher DxOMark scores, indicates better overall camera quality, especially for zoomed shots and in low-light conditions.
  • More Versatile Charging Options: Wireless charging and reverse wireless charging offer more flexibility for charging.
  • Advanced Wi-Fi: Wi-Fi 6 provides faster and more reliable wireless connectivity.
  • Build Quality: Corning Gorilla Glass Victus provides enhanced screen protection compared to Gorilla Glass 5 on the A33.
  • Noise Cancellation Mic: Clearer calls and better audio recording quality due to noise cancellation mic.
  • Lighter weight: Significantly lighter and easier to handle.

Samsung Galaxy A33 5G Advantages:

  • Larger Battery: The 5000mAh battery provides longer battery life.
  • More Versatile Rear Camera Array: The inclusion of a dedicated wide-angle, depth, and macro cameras provide added photographic versatility.
  • Newer Android Version: Launched with Android 12 out of the box with future software upgrades planned.
  • Wider array of Bluetooth codecs: Supports advanced audio codecs like LDAC for enhanced audio quality with compatible devices.
  • Slightly larger display: Larger display for more immersive media consumption.
  • Bypass Charging: A33 features bypass charging for gamers.

Trade-offs:

  • S21: The S21 has a smaller battery, and it may not last as long as the A33 on a single charge. The S21 is more expensive.
  • A33: The A33's performance is significantly lower than the S21. The display is less bright and has a lower refresh rate. It also lacks wireless charging.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G Ideal User:

  • Power Users: Those who need maximum performance for gaming, video editing, and heavy multitasking.
  • Media Consumers: Users who prioritize a smooth and bright display for watching videos and browsing.
  • Photography Enthusiasts: Those who need good camera quality with zoom capabilities.
  • Professionals: Users who require seamless performance, better connectivity, and wireless charging options.
  • Users who need to use their phone in bright conditions: Due to the brightness of the screen.

Specific Use Cases for S21:

  • Gaming (demanding titles at high settings)
  • Video/photo editing on the go
  • Heavy multitasking with multiple apps
  • Outdoor use in bright daylight
  • Taking photos with optical zoom.
  • Wireless charging overnight.

Samsung Galaxy A33 5G Ideal User:

  • Budget-Conscious Users: Those who need a reliable smartphone with a decent battery life at a more affordable price.
  • Casual Users: Those who primarily use their phone for social media, web browsing, and media consumption.
  • Users focused on battery life: Users who need the maximum battery life.
  • Users who need additional camera features: Like wide-angle or macro camera.

Specific Use Cases for A33:

  • All-day use without worrying about charging
  • Social media and browsing
  • Casual gaming
  • Macro Photography
  • Wide-angle shots of landscape

Price-to-Value:

  • The S21 is a more premium device with a higher price, but it offers better performance, display, and camera quality.
  • The A33 provides a good balance between features and affordability, with a focus on battery life and camera versatility.

4. Decision Framework

Key Questions for Buyers:

  1. How important is performance? If you are a heavy user, the S21's significantly better performance might be critical. For casual use, the A33 would be fine.
  2. How important is battery life? The A33 offers much better battery life, which is crucial for some users who do not want to constantly charge.
  3. What are your camera needs? If you need optical zoom and better overall image quality, the S21 is better. If you need versatility in different camera lenses, the A33 is better.

Scenario-Based Recommendations:

  • Scenario 1: You are a mobile gamer and need smooth performance. Recommendation: Galaxy S21 for its powerful performance, smoother display, and better gaming performance.
  • Scenario 2: You need a phone that will last all day without charging. Recommendation: Galaxy A33 for its larger battery.
  • Scenario 3: You prioritize taking high-quality photos with zoom. Recommendation: Galaxy S21 for its better camera system and telephoto lens.
  • Scenario 4: You are on a budget but want a modern phone with good features. Recommendation: Galaxy A33 for its good balance of features and affordability.
  • Scenario 5: You frequently use your phone in bright sunlight. Recommendation: Galaxy S21 for its much brighter display.

My Choice

If I had to choose, I would pick the Samsung Galaxy S21 5G. My primary reason is its significantly superior performance, which translates to a much smoother user experience for daily tasks, gaming, and multitasking. The brighter 120Hz display is also a significant advantage for me, especially since I use my phone outdoors often. The better camera system, including the telephoto lens, offers more flexibility for my photography needs, and wireless charging is a convenient feature I appreciate. While the battery capacity is smaller than the A33, I'm willing to trade some battery life for the enhanced performance and features of the S21.

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
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.