Samsung Galaxy S21 FE 5G vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C51
Realme C51
Realme

General

Launch Date January 7, 2022 August 1, 2023
Release Year 2022 2023

Physical

Volume 91.64 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.62 "/g 3.62 "/g
Weight 177 g 186 g
Height 155.7 mm 167.2 mm
Width 74.5 mm 76.7 mm
Thickness 7.9 mm 8 mm
Foldable Design No No
Available Colors
  • White
  • Graphite
  • Lavender
  • Olive
  • Mint Green
  • Carbon Black

Display

Screen Size 6.4 " 6.74 "
Resolution 1080 x 2340 720 x 1600
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 86.7 % 85.5 %
Pixel Density 403 PPI 260 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 560 nits

Hardware

Battery Capacity per Screen Area 109.86 mAh/in² 110.07 mAh/in²
Battery Density 49.11 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1 Unisoc Tiger T612 (12 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - Version 1 Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 660 - Version 1 Mali-G57

Connectivity

USB Version N/A 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 12 13
Maximum OS Version 16

Comparison Summary

Okay, let's break down the Samsung Galaxy S21 FE 5G and the Realme C51. This isn’t just a numbers game; it’s about how these devices fit into your life. Let's get started.

1. Specifications Breakdown

Here’s a detailed comparison table with a focus on real-world implications:

FeatureSamsung Galaxy S21 FE 5GRealme C51Real-World Implications
Design
Launch Date2022-01-072023-08-01Realme C51 is newer, potentially with more recent software and features.
Dimensions155.7 x 74.5 x 7.9 mm167.2 x 76.7 x 8 mmS21 FE is more compact; Realme C51 is taller and slightly wider.
Weight177g186gS21 FE is slightly lighter, which may be more comfortable for extended use.
Display
Size6.4"6.74"Realme C51 offers more screen real estate, better for media consumption.
Resolution1080 x 2340720 x 1600S21 FE’s higher resolution means sharper text, images, and videos.
Pixel Density (PPI)403260S21 FE’s screen will appear significantly crisper and more detailed.
TechnologyAMOLEDIPS LCDS21 FE’s AMOLED delivers richer colors, deeper blacks, and better viewing angles.
Refresh Rate120Hz90HzS21 FE’s screen will scroll and animate smoother and feel more responsive.
Brightness1300 nits0 nitsS21 FE will be far more visible outdoors in bright sunlight.
Performance
ChipsetSnapdragon 888 (5nm)Unisoc T612 (12nm)S21 FE’s chip is substantially more powerful; smoother multitasking, better gaming.
AnTuTu Score923,836220,000S21 FE’s performance is in a different league, far more responsive in demanding tasks.
GPUAdreno 660Mali-G57S21 FE offers far superior graphics performance, crucial for gaming.
Camera
Standard Camera12MP, f/1.8, 1/1.76”50MP, f/1.8, 1/2.76”Realme C51’s high resolution, S21 FE’s larger sensor captures better low-light photos.
Telephoto/Portrait8MP, f/2.0, 1.0µmN/AS21 FE has an additional lens for optical zoom, offering more versatile shots.
Selfie Camera32MP, f/2.2, 1/2.8”5MP, f/2.2, 1/5”S21 FE offers far superior selfies with more detail and better quality.
Wide Angle/Macro13MP, f/2.2, 1/3.06”N/AS21 FE includes a wider perspective, macro photography for detailed close-ups.
Video RecordingUp to 4K@60fpsUp to 1080p@30fpsS21 FE records higher resolution, smoother, higher quality videos.
DXOMark ScoresMobile: 117, Selfie: 127Not AvailableS21 FE’s image quality has been benchmarked with great results for both main and selfie cameras.
Battery Life
Capacity4500mAh5000mAhRealme C51 has a slightly larger battery, could translate to longer battery life.
Charging25W33WRealme C51 charges faster than the S21 FE.
Additional FeaturesWireless charging, reverse chargingNoneS21 FE’s extra charging options add convenience.
Software
OSAndroid 12, upgradeable to 16Android 13Realme C51 has a newer Android version out of the box, while S21 FE will receive upgrades.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 5S21 FE can achieve higher Wi-Fi speeds, crucial for downloads/streaming.
Bluetooth5.0, more codecs5.0, LDAC, AACS21 FE has broader Bluetooth support, potentially better audio quality for headphones.
GPSGPS, GLONASS, Beidou, GalileoGPS, GLONASS, GalileoS21 FE has an additional GPS system for more precise location.
Storage & Memory
Internal Storage128/256 GB64/128/256 GBBoth offer a 256GB option.
RAM6/8 GB4/6 GBS21 FE can have more RAM, making it better for multitasking and future proofing.
Expandable StorageNoNoNeither device supports expandable storage.
Audio
QualityStereo Speakers, Dolby AtmosNoise cancellation microphoneS21 FE has better audio quality, useful for media consumption.
Security
Fingerprint SensorBasic fingerprint sensorSide-mountedRealme C51's sensor is more modern and convenient.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusUnknownS21 FE is significantly more resistant to scratches and damage.
Sensors
SensorsMore comprehensive suiteBasic suiteS21 FE is more useful for advanced applications and gaming.

2. Key Insights

Samsung Galaxy S21 FE 5G Strengths:

  • Superior Display: Its AMOLED display, with higher resolution, PPI, refresh rate, and brightness, offers a far superior viewing experience, particularly in sunlight.
  • Exceptional Performance: The Snapdragon 888 chipset delivers a dramatically faster, more responsive experience, far outpacing the Realme C51.
  • Advanced Camera System: The S21 FE boasts a more versatile camera setup, including a telephoto lens, and delivers significantly better image and video quality.
  • Better Software Experience: Better software support and upgrade roadmap
  • Premium Features: Includes extras like wireless charging, reverse charging, and a more robust build with Corning Gorilla Glass Victus.

Realme C51 Strengths:

  • Larger Display: The bigger screen is better for media and gaming.
  • Longer Battery Life: Larger battery capacity means longer usage times, potentially.
  • Faster Charging: The 33W fast charging provides quicker refills of battery.
  • More Modern Fingerprint Sensor: Side mounted makes it more accessible.
  • More affordable: The C51 can be a more budget-friendly option.
  • Newer OS: Out of the box Android 13.

Trade-offs:

  • S21 FE: Less battery life, no expandable storage.
  • Realme C51: Significantly lower performance, lower resolution display, and an inferior camera.

3. User Profiles and Recommendations

  • Samsung Galaxy S21 FE 5G:

    • Ideal User: Power users, gamers, photography enthusiasts, and anyone who values a high-quality display and top-tier performance.
    • Best Use Cases: Mobile gaming, media consumption, high-quality photography/videography, multitasking, professional use.
  • Realme C51:

    • Ideal User: Budget-conscious consumers, those who prioritize long battery life, and basic smartphone functionality.
    • Best Use Cases: Everyday browsing, social media, simple gaming, and media consumption on a larger display, for a long period.

4. Buying Decision Framework

Here are three questions to guide your decision:

  1. How important is display quality to me? If you value a sharp, vibrant display for media consumption and outdoor use, the S21 FE is the clear choice.
  2. How much performance do I need? If you are a gamer or multitasker, the S21 FE offers a noticeably better experience. For basic tasks, the Realme C51 may suffice.
  3. How much am I willing to invest? If budget is a primary concern, the Realme C51 might be more appealing, but be aware of the performance sacrifices.

Scenario-Based Recommendations:

  • The Power User: If you need the best performance, display, and camera, the S21 FE is the superior option.
  • The Budget-Conscious: If budget is the most important factor, the Realme C51 might be suitable for basic tasks, but it's not ideal for heavy users.
  • The Media Buff: If a large screen and battery life are most important, the Realme C51 fits the bill, but be aware of the quality difference.
  • The Casual User: If you do not need the extra bells and whistles, and want a phone that is usable in every situation, you can get by with the C51.

What would I choose and why?

I would choose the Samsung Galaxy S21 FE 5G.

Here's why: As someone who appreciates the nuances of technology, the S21 FE’s vastly superior display, robust performance, and the camera system are a significant draw. For my daily use—which involves writing, research, some mobile gaming, and quite a bit of photography—the S21 FE provides a smoother, higher-quality experience across the board. Even though the battery life and the storage is a little limited, the wireless charging and the performance is something that I need.

The Realme C51, while newer and more affordable, makes substantial compromises in performance, display quality, and camera capability. For me, those trade-offs are too steep, and the S21 FE’s premium features and better software experience make it worth the extra investment. It’s not just about the specifications on paper; it's about how a device feels and performs in real, everyday use, and the S21 FE is undoubtedly the winner in that regard. It is the perfect device for anyone who needs a quality all round device that is still a high-end performer.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.