Samsung Galaxy S21+ 5G vs Google Pixel 8a - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 May 14, 2024
Release Year 2021 2024

Physical

Volume 95.23 cm³ 98.41 cm³
Screen Size to Weight Ratio 3.35 "/g 3.24 "/g
Weight 200 g 188 g
Height 161.5 mm 152.1 mm
Width 75.6 mm 72.7 mm
Thickness 7.8 mm 8.9 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Obsidian
  • Porcelain
  • Bay
  • Aloe

Display

Screen Size 6.7 " 6.1 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 81.2 %
Pixel Density 394 PPI 430 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1300 nits 2000 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 120.72 mAh/in²
Battery Density 50.4 mAh/cm³ 45.64 mAh/cm³
Battery Capacity 4800 mAh 4492 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Google Tensor G3 (4 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Nona-core (1x3.0 GHz Cortex-X3 & 4x2.45 GHz Cortex-A715 & 4x2.15 GHz Cortex-A510)
GPU Mali-G78 MP14 - International Immortalis-G715s MC10

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 14
Maximum OS Version 15 21

Comparison Summary

1. Specifications Comparison

Design

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 8aPractical Impact
Dimensions161.5 × 75.6 × 7.8 mm152.1 × 72.7 × 8.9 mmThe S21+ 5G is larger and thinner, which might feel better for some, while the Pixel 8a is more compact and slightly thicker, impacting one-handed use and pocketability.
Weight200g188gThe Pixel 8a is slightly lighter, which can make it more comfortable for extended use.

Display

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 8aPractical Impact
Size6.7"6.1"The S21+ 5G offers a larger screen, better for media consumption, while the Pixel 8a is more compact, which may be preferred for users with smaller hands.
Resolution1080x24001080x2400Both have the same resolution, leading to similar sharpness for the same content.
PPI394430The Pixel 8a has a slightly sharper display due to higher pixel density, making text and images appear slightly clearer.
TechnologyAMOLEDOLEDBoth use high-quality display tech for vibrant colors and deep blacks.
Refresh Rate120Hz120HzBoth offer a smooth scrolling experience and responsive gaming.
Brightness1300 nits0 nitsThe S21+ 5G has significantly better outdoor visibility. The Pixel 8a's brightness is not specified, which could be a drawback if it is significantly lower.

Performance

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 8aPractical Impact
ChipsetExynos 2100 (5 nm)Google Tensor G3 (4 nm)The Pixel 8a's Tensor G3 is newer and, based on benchmark scores, generally more powerful which will provide faster performance and potentially better AI features.
AnTuTu Score749,100876,512The Pixel 8a demonstrates higher performance in benchmarks which translates to snappier app loading and smoother gaming
GPUMali-G78 MP14Immortalis-G715s MC10Both GPUs are capable for gaming, but the Pixel 8a's GPU is newer and offers better performance for modern games.

Camera

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 8aPractical Impact
Rear Standard Camera12MP, f/1.8, 1/1.76", 1.80µm64MP, f/1.89, 1/1.72", 0.70µmThe Pixel 8a captures more detailed images in good lighting due to higher resolution and a slightly larger sensor. The S21+ 5G has larger pixel size, which may provide slightly better low-light performance but is likely surpassed by the 8a's image processing.
Telephoto/Portrait Camera64MP, f/2.0, 1/1.72", 0.80µmNoneThe S21+ 5G has a dedicated telephoto lens, offering better zoom capabilities and portraits with a natural depth of field.
Selfie Camera10MP, f/2.2, 1/3.2", 1.22µm13MP, f/2.2, 1/3.06", 1.12µmThe Pixel 8a provides slightly higher resolution and larger sensor, capturing slightly more detailed selfies.
Wide Angle/Macro Camera12.2MP, f/2.2, 1/2.55", 1.40µm13MP, f/2.2, 1/3.06", 1.12µmS21+ 5G has a wider sensor for wide angle/macro photos, potentially capturing more light. The Pixel 8a has a slightly higher resolution, which may result in finer details.
VideoUp to 8K@24fpsUp to 4K@60fpsS21+ 5G supports higher video resolution and more advanced features like HDR in all modes, while both offer OIS and EIS for stabilization.
DxoMarkMobile: 111, Photo: 118, Video: 89Mobile: 136, Photo: 141, Video: 128Pixel 8a has a significantly higher DxoMark score, indicating better overall photo and video quality.

Battery

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 8aPractical Impact
Capacity4800mAh4500mAhThe S21+ 5G has a slightly larger battery, which could translate into a longer battery life, but this will also depend on optimization.
Charging25W fast charging18W fast chargingThe S21+ 5G charges faster.
FeaturesWireless Charging, Reverse Wireless ChargingNoneThe S21+ 5G has the added convenience of wireless charging and the ability to wirelessly charge other devices.

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Larger Display: Better for media consumption and multitasking.
  • Telephoto Lens: Provides better optical zoom and portrait capabilities.
  • Wireless Charging: Offers convenient wireless and reverse wireless charging.
  • Faster Charging: Charges faster using its 25W charger, reducing downtime.
  • Significantly Brighter Display: Better visibility in bright sunlight (1300 nits vs the 8a's unknown brightness).
  • 8K Video recording: A more advanced video recording.
  • More Bluetooth features: Support for A2DP, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB, ANT+, APT-x, and SBC.

Google Pixel 8a Advantages:

  • Newer Chipset: Offers better performance and AI capabilities.
  • Higher Benchmark Scores: Resulting in better overall performance.
  • Superior Camera Quality: Significantly higher DxoMark score, indicates better photo and video quality, especially in low-light.
  • Latest Android Version: Longer software update support (android 21 vs android 15).
  • More advanced wifi: Supports newer WiFi standard, offering faster speeds, lower latency, better performance in crowded networks, access to 6GHz band, reduced interference; Google Pixel 8a additionally supports: Wi-Fi MiMO
  • Newer Bluetooth version: Bluetooth 5.3, and also supports: LDAC, AAC.

Trade-offs:

  • S21+ 5G: Larger size may be cumbersome for some, older chipset, lower camera quality, less software support.
  • Pixel 8a: Smaller screen, no wireless charging, lacks dedicated telephoto lens, slower charging.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G Ideal User:

  • Users who prioritize a larger screen for media consumption and multitasking.
  • Users who need strong zoom capabilities and portrait photos.
  • Users who want wireless charging and reverse wireless charging.
  • Users who are okay with a slightly older phone that still has strong features.
  • Users who want a brighter screen for better viewing in outdoor environments.

Use Cases:

  • Watching movies and TV shows, playing games, and working on documents on the go
  • Taking high-quality zoom photos at concerts, events, or in nature
  • Those that would utilize wireless and reverse wireless charging features on the go.

Google Pixel 8a Ideal User:

  • Users who want the best camera quality and software features.
  • Users who value performance and latest software updates.
  • Users who prefer a more compact device.
  • Users who want to have the most advanced AI features.

Use Cases:

  • Capturing high-quality photos and videos in various situations
  • Using AI-powered features for enhanced creativity and productivity
  • Those who want a compact phone for easy, every day use.

Price-to-Value:

  • The Pixel 8a is likely to offer better value for users seeking the latest features and performance, especially if the price is competitive. The Samsung S21+ 5G may be more attractive at a lower price point, especially for users who need a brighter display and wireless charging.

4. Decision Framework

Key Questions for Buyers:

  1. Screen Size Preference: Do you prioritize a larger display for media and multitasking (S21+) or a more compact size for ease of use (Pixel 8a)?
  2. Camera Needs: Is having the best possible camera quality with computational photography more important (Pixel 8a), or do you prefer a telephoto lens with optical zoom (S21+)?
  3. Charging and Battery Features: Do you need wireless charging and faster charging (S21+) or is the base charging sufficient (Pixel 8a)?

Scenario-Based Recommendations:

  • For the Media Enthusiast: If you watch a lot of videos, the larger and brighter display of the S21+ 5G will provide a better viewing experience.
  • For the Photographer: The Pixel 8a offers superior camera performance with its advanced image processing and higher DxoMark score.
  • For the Power User: The Pixel 8a's newer chipset and higher benchmarks will offer a better, faster performance and extended software support
  • For the Convenience Seeker: The S21+ 5G provides wireless charging capabilities that will make it easier to charge while at home.

My Choice

Personally, I would choose the Google Pixel 8a. My primary reason is the significantly improved camera performance, as indicated by the DxoMark scores, and the promise of extended software support with a newer Android version. I value having the latest software features and appreciate the consistently good image quality that Google Pixel phones are known for. Although the S21+ 5G has the benefit of wireless charging and a brighter screen, I find the camera upgrade and software support of the Pixel 8a more compelling for my daily needs. The compact size of the 8a is also a bonus for pocketability.

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.