Samsung Galaxy S21+ 5G vs Google Pixel 9 Pro Fold - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 September 4, 2024
Release Year 2021 2024

Physical

Volume 95.23 cm³ 118.89 cm³
Screen Size to Weight Ratio 3.35 "/g 3.11 "/g
Weight 200 g 257 g
Height 161.5 mm 155.2 mm
Width 75.6 mm 150.2 mm
Thickness 7.8 mm 5.1 mm
Foldable Design No Yes
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Obsidian
  • Porcelain

Display

Screen Size 6.7 " 8 "
Resolution 1080 x 2400 2076 x 2152
Aspect Ratio 20:9 16:9
Screen-to-Body Ratio 88.8 % 88.5 %
Pixel Density 394 PPI 373 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1600 nits
Peak Brightness 1300 nits 2700 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 72.66 mAh/in²
Battery Density 50.4 mAh/cm³ 39.11 mAh/cm³
Battery Capacity 4800 mAh 4650 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Google Tensor G4 (4 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x3.1 GHz Cortex-X4 & 3x2.6 GHz Cortex-A720 & 4x1.92 GHz Cortex-A520)
GPU Mali-G78 MP14 - International Mali-G715 MC7

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

Here's a detailed comparison of the Samsung Galaxy S21+ 5G and the Google Pixel 9 Pro Fold, focusing on their practical implications:

Design

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 9 Pro FoldPractical Impact
Form FactorStandardFoldableThe Pixel 9 Pro Fold offers a larger screen when unfolded, making it suitable for media consumption and multitasking. The S21+ is a traditional phone.
Dimensions161.5 × 75.6 × 7.8 mm155.2 × 150.2 × 5.1 mmThe Pixel 9 Pro Fold is significantly wider when unfolded. The S21+ is taller and thicker.
Weight200g257gThe S21+ is significantly lighter, making it more comfortable to hold for longer periods. The Pixel 9 Pro Fold is heavier due to its foldable design.

Display

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 9 Pro FoldPractical Impact
Size6.7"8"The Pixel 9 Pro Fold offers a much larger screen, ideal for media consumption, gaming, and multitasking with multiple apps.
Resolution1080x24002076x2152The Pixel 9 Pro Fold provides a sharper and more detailed display due to its higher resolution, enhancing image and text clarity.
Pixel Density394 ppi373 ppiWhile technically lower, the difference in PPI is minor, and both offer sharp displays in practice.
TechnologyAMOLEDUnknownThe S21+ likely has a better display with AMOLED technology. The Pixel 9 Pro Fold's display technology isn't specified, which is a limitation to this analysis.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations, making them feel responsive.
Brightness1300 nits0 nitsThe S21+ is significantly brighter and better for outdoor viewing under direct sunlight. The Pixel 9 Pro Fold's brightness is listed as 0, which needs more clarification.

Performance

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 9 Pro FoldPractical Impact
ChipsetExynos 2100 (5 nm)Google Tensor G4 (4 nm)The Pixel 9 Pro Fold's newer chip offers significantly better performance, resulting in smoother multitasking, faster app loading, and better gaming capabilities.
AnTuTu Score749,1001,140,000The Pixel 9 Pro Fold delivers substantially higher performance, translating to faster overall operation and better handling of resource-intensive tasks.
GPUMali-G78 MP14 (ARM Mali-G78 MC14)Mali-G715 MC7 (Mali-G715)The Pixel 9 Pro Fold's GPU should offer better graphics processing, which is beneficial for gaming and demanding graphical applications.

Battery

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 9 Pro FoldPractical Impact
Capacity4800mAh4650mAhBoth have comparable battery capacity; Expect similar battery life. Real-world battery life depends on usage patterns.
Charging25W fast charging27W fast chargingThe Pixel 9 Pro Fold has slightly faster charging, meaning it will charge up a little quicker.
FeaturesReverse, 15W Wireless, 4.5W Reverse Wireless, No charge in box7.5W WirelessThe S21+ offers more comprehensive wireless charging options, including faster wireless charging and reverse wireless charging to charge other devices. The Pixel 9 Pro Fold is limited in this regard, and has a less powerful wireless charging speed, this coupled with its larger screen may result in slightly poorer battery performance in some usage scenarios.

Camera

FeatureSamsung Galaxy S21+ 5GGoogle Pixel 9 Pro FoldPractical Impact
Standard Lens12MP, f/1.8, 1/1.76", 1.8µm pixel size48MP, f/1.7The Pixel 9 Pro Fold captures more detail with the higher resolution, with slightly wider aperture and is expected to have better low light performance.
Telephoto Lens64MP, f/2.0, 1/1.72", 0.8µm pixel sizeNot SpecifiedThe S21+ provides dedicated telephoto lens for optical zoom, not present on the Pixel, it enables zoom without quality loss and potentially better portrait shots.
Selfie Lens10MP, f/2.2, 1/3.2", 1.22µm pixel size10MP, f/2.2Both phones have comparable selfie cameras with similar resolution and aperture.
Telephoto lensNot Specified10.8MP, f/3.0, 1/2.65", 1.22µm pixel sizePixel has dedicated Telephoto lens.
Wide Angle lensNot Specified10.5MP, f/2.2Pixel has dedicated wide angle lens.
Wide Angle + Macro12.2MP, f/2.2, 1/2.55", 1.4µm pixel sizeNot SpecifiedThe S21+ provides dedicated wide angle + macro lens for ultrawide shots and close-up images.
VideoUp to 8K@24fps with HDR, EISUp to 4K@60fps with HDR, OIS, EISThe S21+ allows for higher resolution video recording. Pixel records good quality videos, both phones have image stabilization for video.
DxOMark Mobile111 Main Score, 118 Photo Score, 89 Video Score141 Main Score, 0 Photo Score, 0 Video ScoreWhile the Pixel 9 Pro Fold has a higher overall score, the S21+ performed better in photo and video tests. The pixel's scores are incomplete.
Features4K/8K Video, Digital zoom, Optical zoom, Triple camera, OIS, PDAF, RAW, Night Mode.4K Video, Digital zoom, Optical zoom, Triple camera, OIS, PDAF, CDAF, LAF, Face unlockBoth have multiple features including Digital zoom, Optical zoom, Triple camera, OIS, PDAF. However, the Pixel 9 pro has additional Laser and Contrast Detection autofocus and Face unlock; S21+ has RAW and Night mode.

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Lighter and More Comfortable: The S21+ is significantly lighter, making it easier to handle for extended use.
  • Brighter Display: The display has significantly higher brightness, making it better for outdoor visibility and viewing under direct sunlight.
  • More Comprehensive Charging Options: It supports faster wireless charging, and reverse wireless charging for other devices.
  • Better Video Resolution: It supports 8K video recording, ideal for those seeking professional-grade video capabilities.
  • Better Camera Scores (Photo/Video): According to DxOMark, the S21+ performed better in both photo and video tests, with a dedicated telephoto lens and wide angle + macro lens, offering better zoom and close-up shooting capabilities.
  • More comprehensive audio features: The phone features Dolby Atmos and Hi-Res Audio for superior audio performance.

Google Pixel 9 Pro Fold Advantages:

  • Larger Foldable Display: The large display provides more screen real estate, ideal for consuming content, playing games, and multitasking.
  • Higher Resolution: It has a significantly higher display resolution, offering a sharper viewing experience.
  • Superior Performance: The Tensor G4 chip provides significantly better performance, leading to faster app loading, smoother multitasking, and better gaming.
  • More RAM: The Pixel 9 Pro Fold has double the RAM, which is better for multitasking, app performance, and heavy usage.
  • Newer Bluetooth Version: The latest Bluetooth version (5.3) is more power-efficient and offers better connection reliability.
  • Wider standard lens aperture: The pixel has a wider aperture on its main lens for enhanced low-light photography.
  • Better GPS Accuracy: It supports more satellite systems, potentially leading to better location accuracy, and enhanced navigation capabilities.
  • More advanced fingerprint sensor: The side mounted sensor offers better security and usability.
  • More Internal Storage: Comes with options for higher storage capacities (256GB and 512 GB)

Significant Trade-Offs

  • S21+: Lacks a foldable design and has significantly lower performance than the Pixel 9 Pro Fold. Its camera scores lower overall than the Pixel 9 Pro Fold, despite better scores in specific categories, and lacks some of the more modern camera features.
  • Pixel 9 Pro Fold: Significantly heavier, and its display brightness is unclear (potentially much lower), it lacks reverse wireless charging features. Its video and photo scores in DxOMark are incomplete.

3. User Profiles & Recommendations

Ideal Users for Samsung Galaxy S21+ 5G:

  • Users who value portability: The lighter weight makes it suitable for users who want a phone that's easy to carry around and hold for long periods.
  • Users who need excellent outdoor visibility: Ideal for users who often use their phones in direct sunlight.
  • Users who need a feature-rich camera: The S21+ offers excellent features for zoom and close-up shots.
  • Users who value wireless charging capabilities: The phone has reverse wireless charging.
  • Users who value good audio quality: With Dolby Atmos and Hi-Res audio.
  • Price-Conscious Buyers: The S21+ might be more affordable, offering good value for its features.

Specific Use Cases: Everyday use, content creation (video), users needing good camera quality for general photography and video, users who need reverse wireless charging for their other devices, users needing a light-weight phone.

Ideal Users for Google Pixel 9 Pro Fold:

  • Power users: Ideal for users who need maximum performance for gaming, multitasking, and running demanding applications.
  • Users who value a large display: Perfect for media consumption, productivity, and having more screen real estate when multitasking.
  • Multitaskers: The larger screen and more RAM make it suitable for users who often work with multiple apps at once.
  • Users who need enhanced GPS accuracy: Ideal for users who rely heavily on navigation or location-based services.
  • Users who want latest features: The Pixel 9 Pro Fold has the latest Bluetooth and chipset.
  • Users who want a foldable phone: The foldable form factor is unique and offers a tablet-like experience when unfolded.
  • Users who prefer to have the latest software updates: Google Pixel devices are among the first to get new Android updates.

Specific Use Cases: Heavy gaming, media consumption, professional tasks, users needing a tablet-like device in a pocketable size, users wanting the latest android features.

4. Decision Framework

Here are three key questions buyers should consider:

  1. What is your primary use case? Are you primarily using your phone for basic tasks, or do you need a high-performance device for gaming and productivity?
  2. How important is portability? Do you prioritize a lightweight device, or are you willing to sacrifice some portability for a larger, foldable screen?
  3. What is your budget? Consider the price difference and which phone offers better value for your specific needs.

Scenario-Based Recommendations:

  • Scenario 1: Casual User Prioritizing Portability and Camera
    • Recommendation: Samsung Galaxy S21+ 5G. It's lighter, has a brighter screen, a capable camera for photos and videos, with a more balanced combination of features, and is generally cheaper.
  • Scenario 2: Power User Prioritizing Performance and Multitasking
    • Recommendation: Google Pixel 9 Pro Fold. It provides superior performance, more RAM, a larger display for multitasking, and the latest technology.
  • Scenario 3: User who prioritizes a large, portable screen, but also good performance
    *  **Recommendation:** Google Pixel 9 Pro Fold, the foldable design and higher resolution screen offers a unique experience, at a premium price point.
    
  • Scenario 4: User Prioritizing Battery and Wireless Charging
    • Recommendation: Samsung Galaxy S21+ 5G, it offers more versatile charging options, including reverse wireless charging.
  • Scenario 5: User that prioritizes the latest software updates
    • Recommendation: Google Pixel 9 Pro Fold, Pixel devices receive software updates earlier than other android devices.

What I would choose and why:

Personally, I would choose the Google Pixel 9 Pro Fold. While I appreciate the lighter design, better video features, and more versatile charging options of the Samsung Galaxy S21+ 5G, the Pixel 9 Pro Fold caters better to my usage patterns.

As a user who often consumes media, engages in heavy multitasking, and sometimes games on my device, the larger display, higher resolution, and significantly superior performance of the Pixel 9 Pro Fold are more valuable to me. Additionally, I value the latest technology, and the more advanced GPS features, as well as the faster processor and more RAM of the Google device. The slightly heavier build is a trade-off I am willing to make for the enhanced user experience it provides.

Although the Samsung Galaxy S21+ 5G is a solid device with excellent features and is likely cheaper, the Pixel 9 Pro Fold's advantages align more with my specific needs and preferences.

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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Bridging technical complexity with engaging, accessible narratives.