Samsung Galaxy S21 Ultra 5G vs Xiaomi Poco M5 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 September 13, 2022
Release Year 2021 2022

Physical

Volume 111.09 cm³ 111.08 cm³
Screen Size to Weight Ratio 3 "/g 3.27 "/g
Weight 227 g 201 g
Height 165.1 mm 164 mm
Width 75.6 mm 76.1 mm
Thickness 8.9 mm 8.9 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy
  • Black
  • Yellow
  • Green

Display

Screen Size 6.8 " 6.58 "
Resolution 1440 x 3200 1080 x 2408
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.4 % 83.6 %
Pixel Density 515 PPI 401 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 500 nits
Peak Brightness 1500 nits N/A

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 115.48 mAh/in²
Battery Density 45.01 mAh/cm³ 45.01 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek Helio G99 (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G57 MC2

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 14

Comparison Summary

1. Specifications Comparison

Design

FeatureSamsung Galaxy S21 Ultra 5GXiaomi Poco M5Practical Impact
Dimensions165.1 x 75.6 x 8.9 mm164 x 76.1 x 8.9 mmS21 Ultra is slightly taller, but both have similar width and thickness.
Weight227g201gPoco M5 is significantly lighter, more comfortable for extended holding.
BuildCorning Gorilla Glass Victus (Screen)Unknown (Screen)S21 Ultra has superior screen protection. Poco M5's screen protection is unspecified.

Display

FeatureSamsung Galaxy S21 Ultra 5GXiaomi Poco M5Practical Impact
Size6.8"6.58"S21 Ultra has a slightly larger display for more immersive viewing.
Resolution1440 x 32001080 x 2408S21 Ultra is significantly sharper, with more detail.
Pixel Density (PPI)515401S21 Ultra has a noticeably clearer and sharper display.
TechnologyAMOLEDIPS LCDS21 Ultra has superior colors, deeper blacks, better contrast, and efficiency, especially for dark mode.
Refresh Rate120Hz90HzS21 Ultra offers slightly smoother scrolling and animations.
Brightness1500 nits0 nitsS21 Ultra is significantly better for outdoor visibility in bright sunlight.

Performance

FeatureSamsung Galaxy S21 Ultra 5GXiaomi Poco M5Practical Impact
ChipsetExynos 2100 (5 nm)Mediatek Helio G99 (6 nm)S21 Ultra's chipset is faster and more powerful for demanding tasks.
AnTuTu Score749,000414,500S21 Ultra offers much faster app loading, better multitasking, and higher gaming performance.
GPUMali-G78 MP14Mali-G57 MC2S21 Ultra has a more powerful GPU for better graphics-intensive tasks and gaming.
RAM12 GB or 16 GB4 GB or 6 GBS21 Ultra has substantially more RAM, better for heavy multitasking and gaming.

Camera

FeatureSamsung Galaxy S21 Ultra 5GXiaomi Poco M5Practical Impact
Main Camera Resolution108 MP50 MPS21 Ultra captures much more detailed images.
Main Camera Sensor Size1/1.33"1/2.76"S21 Ultra captures more light, resulting in better low-light performance.
Telephoto CameraYes (x2, 10.8MP)NoS21 Ultra has a dedicated zoom capability with two telephoto lenses.
Wide Angle CameraYes (12.2MP)NoS21 Ultra can capture much wider scenes.
Selfie Camera Resolution44MP5MPS21 Ultra captures highly detailed selfies with higher quality.
Portrait mode (depth)NoYes (2MP)Poco M5 has a dedicated depth sensor to aid in bokeh effect
Macro LensNoYes (2MP)Poco M5 has a dedicated macro lens for close-up shots
Video RecordingUp to 8K@24fps1080p@30fpsS21 Ultra is capable of much higher resolution video.
Video StabilizationEISNoS21 Ultra video footage is more stable
DxOMark Mobile115N/AS21 Ultra is benchmarked as having a significantly higher-quality camera.
DxOMark Selfie135N/AS21 Ultra's selfie camera performs at a higher standard.
Additional FeaturesOptical zoom, Quadruple camera, OIS, Laser AF, RAWTriple camera, Ultra stable video, Front FlashS21 Ultra has more advanced camera features and options. Poco M5 offers basic features but lacks advanced capabilities.

Battery

FeatureSamsung Galaxy S21 Ultra 5GXiaomi Poco M5Practical Impact
Capacity5000 mAh5000 mAhBoth have similar battery life.
Charging25W fast charging18W fast chargingS21 Ultra charges faster.
FeaturesWireless charging, reverse wireless chargingNoneS21 Ultra offers wireless charging and the ability to charge other devices wirelessly.

2. Key Differences Analysis

Samsung Galaxy S21 Ultra 5G Advantages

  • Superior Display: The AMOLED display with higher resolution, pixel density, brightness, and refresh rate provides a much better visual experience for all use cases (media consumption, gaming, everyday use).
  • Much Higher Performance: The Exynos 2100 chipset and significantly more RAM mean faster app loading, smoother multitasking, and the ability to handle demanding tasks such as gaming and video editing.
  • Advanced Camera System: The versatile camera setup with higher resolution sensors, telephoto and wide-angle lenses, 8K video recording, and additional features like OIS and laser autofocus allow for more creative photography and videography.
  • Wireless Charging and Reverse Wireless Charging: Offers convenient charging options and the ability to charge other wireless devices.
  • Better Audio Quality: Features Dolby Atmos, Hi-Res Audio, and Stereo Speakers which offer more immersive and clear audio experiences.
  • More Advanced Connectivity: Newer Wi-Fi standards, and more satellite systems for location make the device more future-proof.
  • Software Support: Will receive more Android upgrades compared to the Poco M5.

Xiaomi Poco M5 Advantages

  • Lighter Weight: More comfortable for extended use.
  • Side-Mounted Fingerprint Sensor: Potentially more convenient to some users.
  • Lower Price: Significantly more affordable, making it an attractive budget option.
  • Portrait and Macro Lenses Lenses allow for extra creativity in your photographs.
  • Newer Bluetooth Version: Offers more modern and reliable wireless connections.
  • Front Flash: Makes better selfies in low light situations

Trade-offs

  • S21 Ultra: Much more expensive, lacks a macro and a depth sensor, heavier and larger
  • Poco M5: Significantly lower display quality, weaker performance, inferior camera capabilities, lacks wireless charging, no screen protection listed, no barometer, and fewer satellite systems supported.

3. User Profiles & Recommendations

Samsung Galaxy S21 Ultra 5G Ideal Users

  • Professional Photographers/Videographers: Users who require high-quality images and videos with advanced camera features, and extensive zoom capabilities.
  • Power Users: Individuals who need a phone that can handle demanding tasks like video editing, heavy gaming, and intense multitasking.
  • Media Consumers: Those who prioritize a premium display experience for watching videos, playing games, and browsing the web with smooth and crisp visuals.
  • Users Seeking Premium Features: Individuals who want the latest technology, such as wireless charging, reverse wireless charging, a top-tier display, and advanced connectivity.

Xiaomi Poco M5 Ideal Users

  • Budget-Conscious Users: Individuals who want a functional smartphone without breaking the bank.
  • Casual Users: Those who primarily use their phones for basic tasks like browsing, social media, and light photography.
  • First-Time Smartphone Users: A good entry-level phone with adequate performance for everyday tasks.
  • Users Who Value Light Weight: Individuals who find lighter phones more comfortable to hold for longer periods.

Specific Use Cases

  • S21 Ultra:
    • Professional Photography Shoots: The camera excels in various conditions and offers versatile capabilities
    • Mobile Gaming: High refresh rate, powerful chipset, and GPU provide a smooth and immersive gaming experience
    • On-the-Go Content Creation: 8K video, ample storage, and fast processing enable the creation of high-quality content
  • Poco M5:
    • Everyday Browsing and Social Media: Handles basic tasks smoothly.
    • Casual Photography: Captures good quality photos for social media sharing in daylight conditions.
    • Basic Mobile Gaming: Can run simpler games, but demanding titles might lag.

Price-to-Value Ratio

  • S21 Ultra: Offers excellent performance and advanced features for a premium price. Provides a flagship experience and justifies the expense for users needing high performance and versatile capabilities.
  • Poco M5: Offers great value for its price point. Is very budget-friendly and provides all basic smartphone necessities.

4. Decision Framework

Key Questions for Buyers

  1. What is your budget? This will be the most significant factor as the S21 Ultra is significantly more expensive.
  2. What are your main use cases? Determine if the phone will primarily be for basic tasks or more demanding activities like gaming, photography, or video editing.
  3. How important are display quality and camera features? If these are high priorities, the S21 Ultra is the clear winner.

Scenario-Based Recommendations

  • Scenario 1: You are a photography enthusiast who likes shooting in different conditions and wants high quality photos, you should consider the Samsung Galaxy S21 Ultra 5G as its advanced camera system will allow you to shoot more professional quality content.
  • Scenario 2: You are on a tight budget and need a reliable device for basic tasks such as web browsing and social media, consider the Xiaomi Poco M5 as it is a lower budget option.
  • Scenario 3: You prioritize display quality, processing power, and smooth performance above all else, then the Samsung Galaxy S21 Ultra 5G is a clear winner.
  • Scenario 4: You need a reliable device for daily use, prefer a lighter phone, and want to save as much money as possible, then consider the Xiaomi Poco M5.

What I would Choose

Given the provided information, I would choose the Samsung Galaxy S21 Ultra 5G. Here's why:

My priorities in a smartphone are a top-tier display experience, reliable performance, a versatile camera system, and a long-lasting battery with fast charging. The S21 Ultra excels in all these areas. While the Xiaomi Poco M5 is a great budget phone, the difference in display quality, performance, and camera capabilities is too significant for me to overlook.

I value a crisp and smooth screen for viewing content, a powerful processor for seamless multitasking, and a reliable camera to capture high-quality photos and videos. The additional features like wireless charging and reverse wireless charging are also very convenient for my lifestyle. Although the price is higher, the value offered by the Samsung Galaxy S21 Ultra 5G for my needs and usage justifies the investment.

The key reason to pick the S21 Ultra is its versatility, it can handle professional quality photography, high end gaming, and every-day use with ease and has a stunning display that is ideal for media consumption and a powerful processor that allows for smooth operation under heavy workloads. The Poco M5 is a decent option for a budget-conscious buyer, but it has far too many compromises in key areas compared to the S21 Ultra.

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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  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.