Samsung Galaxy S21+ 5G vs Xiaomi Poco F4 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 June 27, 2022
Release Year 2021 2022

Physical

Volume 95.23 cm³ 95.5 cm³
Screen Size to Weight Ratio 3.35 "/g 3.42 "/g
Weight 200 g 195 g
Height 161.5 mm 163.2 mm
Width 75.6 mm 76 mm
Thickness 7.8 mm 7.7 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Night Black
  • Moonlight Silver
  • Nebula Green

Display

Screen Size 6.7 " 6.67 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 86.6 %
Pixel Density 394 PPI 395 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 900 nits
Peak Brightness 1300 nits 1300 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 101.15 mAh/in²
Battery Density 50.4 mAh/cm³ 47.12 mAh/cm³
Battery Capacity 4800 mAh 4500 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU Mali-G78 MP14 - International Adreno 650

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 13

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S21+ 5GXiaomi Poco F4Practical Impact
Design
Dimensions161.5 x 75.6 x 7.8 mm163.2 x 76 x 7.7 mmPoco F4 is slightly taller and negligibly thinner; S21+ is easier for one-handed use.
Weight200g195gPoco F4 is slightly lighter, which can be noticeable during prolonged use
Display
Size6.7"6.67"Slightly larger screen on the S21+; difference is not significant.
Resolution1080x24001080x2400Identical sharpness on both screens
PPI394395Virtually identical pixel density, resulting in similarly sharp images.
TechnologyAMOLEDAMOLEDSame vibrant colors and deep blacks on both displays
Refresh Rate120Hz120HzSmooth scrolling and animations on both
Brightness1300 nits1300 nitsExcellent visibility in bright sunlight on both devices
Performance
ChipsetExynos 2100 (5 nm)Snapdragon 870 5G (7 nm)Poco F4 generally offers a better gaming experience and smoother performance due to more efficient and optimized architecture
AnTuTu Score749,100861,200Poco F4 scores higher indicating better performance in benchmarks, also resulting in better gaming experience and smoother performance
GPUMali-G78 MP14Adreno 650Poco F4's Adreno 650 is generally preferred for gaming, with more optimized performance.
Camera
Main Camera12MP, f/1.8, 1/1.76"64MP, f/1.79, 1/2"Poco F4 captures more detail due to higher resolution; S21+ has slightly better low light performance due to larger sensor size
Telephoto/Portrait64MP, f/2.0, 1/1.72"NoneS21+ has dedicated telephoto lens for better zoomed images and portraits; Poco F4 lacks a dedicated telephoto lens.
Selfie Camera10MP, f/2.2, 1/3.2"20MP, f/2.4, 1/2"Poco F4 takes higher resolution selfies; S21+ has a slightly better low light performance due to wider aperture
Wide Angle LensNone8MP, f/2.2, 1/4"Poco F4 has a dedicated wide angle lens, providing a better field of view
Macro LensNone2MP, f/2.4, 1/5"Poco F4 has a dedicated macro lens, capable of capturing detailed close-up shots
Wide Angle + Macro12.2MP, f/2.2, 1/2.55"NoneS21+ has a dedicated wide angle and macro camera, providing a better field of view and detailed close-up shots, all in one lense
Video RecordingUp to 8K@24fpsUp to 4K@60fpsS21+ allows for recording higher quality, detailed professional grade videos
DXOMark Mobile Score111Not AvailableS21+ has a tested camera performance score; Poco F4's score is not available
Additional Camera FeaturesOptical zoomUltra stable videoS21+ can zoom without loss of quality, Poco F4 has extra video stabilization
Battery
Capacity4800mAh4500mAhS21+ has a slightly larger battery, potentially longer battery life
Charging25W fast charging, Li-Polymer67W fast charging, Li-Ion PolymerPoco F4 charges significantly faster
Additional FeaturesWireless charging, Reverse wireless chargingNoneS21+ can charge other devices wirelessly
Software
OSAndroid 11, upgradable to 15Android 12, upgradable to 13Poco F4 comes with a newer version of android; S21+ will receive one more android update compared to the Poco F4
Connectivity
Wi-FiWi-Fi 6Wi-Fi 6, Wi-Fi MiMOBoth support modern standards, Poco F4 includes Wi-Fi MiMO.
BluetoothBluetooth 5.0, LEBluetooth 5.2, LEPoco F4 has the latest standard, for slightly better connection efficiency
GPSMultiple systems including GPS L1+L5Multiple systems including GPS L1+L5, NavICPoco F4 supports more systems for better location accuracy
SIMDual SIM, Nano SIM, eSIMDual SIM, Nano SIMS21+ supports an eSIM for more flexible carrier options
Storage
Internal128GB/256GB128GB/256GBSame storage options
RAM8GB6GB/8GB/12GBPoco F4 offers a higher RAM configuration, resulting in smoother multitasking
Expandable StorageNoNoNeither have expandable storage
Audio
QualityDolby Atmos, Hi-Res, Stereo Speakers, Noise Cancelling MicDolby Atmos, Hi-Res, Stereo Speakers, 2 MicrophonesBoth have excellent audio, the S21+ has noise cancelling mic which improves call quality, while Poco F4 has 2 mics for clearer audio recording
Security
FeaturesBasic Fingerprint SensorSide-mounted Fingerprint SensorPoco F4 has a more convenient, faster fingerprint sensor
Build Quality
Screen ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass 5S21+ has the latest, better scratch resistance screen protection
Sensors
FeaturesFingerprint, Proximity, Accelerometer, Compass, Gyroscope, BarometerFingerprint, Accelerometer, Compass, Gyroscope, Ultrasonic ProximityS21+ adds barometer for better environmental data, while Poco F4 adds ultrasonic proximity for quicker response

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Superior Camera System: The S21+ has a more versatile camera setup with a telephoto lens and a wide-angle lens, plus capabilities for 8K video, offering more flexibility for different shooting scenarios. It also features a wide angle + macro lens, which has improved results than separate lenses.
  • Wireless Charging & Reverse Charging: Offers wireless charging and reverse wireless charging, providing convenience for users with other wireless devices and portability of power bank.
  • Premium Build Quality: The Corning Gorilla Glass Victus offers better scratch resistance.
  • eSIM Support: Offers more options for travelers or digital carrier users.
  • Slightly larger battery: Marginally better battery life.
  • More Android Updates: Will receive android updates up to android 15

Xiaomi Poco F4 Advantages:

  • Better Performance: The Snapdragon 870 chipset and higher Antutu score offer superior performance, particularly in gaming and heavy multitasking.
  • Faster Charging: 67W fast charging can quickly replenish the battery.
  • Higher RAM options: Up to 12GB RAM allows for smoother multitasking and app switching.
  • More modern Bluetooth and Wifi: Bluetooth 5.2 and Wifi MiMO offers better connectivity efficiency and speed.
  • Wide Angle + Macro camera: Dedicated wide angle and macro camera gives flexibility to users to take better landscape or detailed close-up pictures.
  • Ultrasonic Proximity Sensor: Faster response time for proximity sensor.

Trade-offs:

  • The S21+ sacrifices slightly better performance for a more feature-rich camera system and wireless charging.
  • The Poco F4 prioritizes performance and fast charging while lacking a dedicated telephoto camera and wireless charging.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G Ideal Users:

  • Photography enthusiasts: Users who value a versatile camera system with zoom capabilities and are willing to trade slightly lower performance.
  • Users who want a premium build: People who want a phone with a durable screen and premium feel.
  • Wireless charging users: Those who have other wireless charging devices and want to charge on the go.
  • Frequent travelers: Users who may use the eSIM functionality.

Specific Use Cases for S21+:

  • Travel photography, capturing diverse landscapes and subjects.
  • Shooting professional quality 8k video.
  • Wireless charging of earbuds and other devices.
  • Those who prioritize camera and photography capabilities over performance.

Xiaomi Poco F4 Ideal Users:

  • Gamers: Users who need the best performance for demanding mobile games and multitasking.
  • Users on a budget: Users who want the best possible performance for a mid-range price.
  • Power users: People who need fast charging and excellent performance for various tasks.
  • Users who prefer the newest technology: Those who prefer the newest bluetooth and wifi technology for faster connectivity.

Specific Use Cases for Poco F4:

  • Playing graphically intensive games at high frame rates.
  • Quickly charging the device before heading out.
  • Recording high quality videos with ultra-stable video recording capabilities.
  • Multitasking between resource-heavy apps with ease and fast responsiveness.

Price-to-Value:

  • The Xiaomi Poco F4 generally offers better value for performance, particularly for gamers.
  • The Samsung S21+ offers more features and a more versatile camera, but generally at a higher price point.

4. Decision Framework

Key Questions to Consider:

  1. Do you prioritize performance or camera versatility? If performance and gaming are crucial, the Poco F4 excels. If you prioritize advanced camera features and wireless charging, the S21+ is better.
  2. Do you value fast charging and multitasking? The Poco F4's 67W fast charging and higher RAM options are significant advantages for power users.
  3. Do you prefer a more durable design or more functionality? If a more premium build with better screen protection, and wireless charging is needed, the S21+ is better suited.

Scenario-Based Recommendations:

  • For a gamer or power user on a budget: Choose the Xiaomi Poco F4 for its superior performance and fast charging, as well as newer wifi and bluetooth technology.
  • For someone who values camera quality and wireless charging: Choose the Samsung Galaxy S21+ 5G for its more versatile camera, wireless charging capabilities and slightly better screen protection, with a small trade-off in performance.
  • For users who need an eSIM: The Samsung Galaxy S21+ 5G is the only option as it supports eSIM functionality.

What I would choose and why:

Based on my preferences, I would choose the Xiaomi Poco F4. While the Samsung Galaxy S21+ 5G offers a more feature-rich camera system and wireless charging, I value performance and battery life the most in a smartphone. The Poco F4's Snapdragon 870 chipset, combined with its higher RAM options and incredibly fast 67W charging, make it a more appealing option for my daily use which usually includes resource heavy multitasking, and mobile gaming. While I appreciate a versatile camera setup, I am willing to trade some camera features for the superior processing power and battery life that the Poco F4 provides. Also, as a tech enthusiast, the newer bluetooth and Wifi technology is appealing to me.

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.