Xiaomi Mi 10T Pro 5G vs Samsung Galaxy S21 Ultra 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date October 13, 2020 January 29, 2021
Release Year 2020 2021

Physical

Volume 117.31 cm³ 111.09 cm³
Screen Size to Weight Ratio 3.06 "/g 3 "/g
Weight 218 g 227 g
Height 165.1 mm 165.1 mm
Width 76.4 mm 75.6 mm
Thickness 9.3 mm 8.9 mm
Foldable Design No No
Available Colors
  • Cosmic Black
  • Aurora Blue
  • Lunar Silver
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy

Display

Screen Size 6.67 " 6.8 "
Resolution 1080 x 2400 1440 x 3200
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.2 % 89.4 %
Pixel Density 395 PPI 515 PPI
Refresh Rate 144 Hz 120 Hz
Typical Brightness 500 nits N/A
HBM Brightness N/A N/A
Peak Brightness 650 nits 1500 nits

Hardware

Battery Capacity per Screen Area 112.39 mAh/in² 108.13 mAh/in²
Battery Density 42.62 mAh/cm³ 45.01 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8250 Snapdragon 865 5G (7 nm+) Exynos 2100 (5 nm) - International
CPU Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
GPU Adreno 650 Mali-G78 MP14 - International

Connectivity

USB Version 2.0 3.2
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C 3.2, OTG

Software

Operating System Android Android
Initial OS Version 10 11
Maximum OS Version 11 15

Comparison Summary

1. Specifications Comparison

Design

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
Dimensions165.1 × 76.4 × 9.3 mm165.1 × 75.6 × 8.9 mmS21 Ultra is slightly thinner and narrower, potentially more comfortable for one-handed use, though difference is minimal.
Weight218g227gMi 10T Pro is slightly lighter, but both are relatively heavy phones, which might be noticeable during extended use.
Build Quality (Screen Protection)Corning Gorilla Glass 5Corning Gorilla Glass VictusS21 Ultra offers superior scratch and shatter resistance for the screen.

Display

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
Size6.67"6.8"S21 Ultra provides a slightly larger viewing area, better for media consumption and multitasking.
Resolution1080x24001440x3200S21 Ultra offers a significantly sharper and more detailed display, especially noticeable with high-resolution content.
Pixel Density (PPI)395515S21 Ultra's higher pixel density results in crisper text and images.
TechnologyIPS LCDAMOLEDS21 Ultra's AMOLED display offers deeper blacks, better contrast, more vibrant colors, and improved power efficiency with dark themes.
Refresh Rate144Hz120HzMi 10T Pro has a slightly smoother scrolling and animation experience, although the difference may not be noticeable to everyone.
Brightness0 nits1500 nitsS21 Ultra is much brighter, providing significantly better visibility in direct sunlight.

Performance

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
ChipsetQualcomm Snapdragon 865 (7 nm+)Exynos 2100 (5 nm) - InternationalBoth are flagship-level chips. The S21 Ultra's 5nm chip is generally more power-efficient, potentially leading to slightly better battery life under heavy use.
Antutu Score750,829749,000Virtually identical performance in benchmarks. Both phones are capable of handling demanding apps and games smoothly.
GPUAdreno 650Mali-G78 MP14 - InternationalBoth are high-end GPUs. The real-world difference in gaming performance is likely minimal for most users.

Camera

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
Main Camera108MP, f/1.69108MP, f/1.8Both offer high-resolution main cameras for detailed photos. The wider aperture on the Mi 10T Pro may provide slightly better low-light performance.
Telephoto LensesNone10.8MP (3x) + 10.8MP (10x)S21 Ultra offers significantly better zoom capabilities with its dual telephoto lenses, allowing for clear photos at various zoom levels.
Ultrawide Lens13MP12.2MP (Wide Angle + Macro)Both offer ultrawide lenses for capturing expansive scenes. The S21 Ultra's also functions as a macro lens.
Macro Lens5MPNone (integrated with ultrawide)Mi 10T Pro has a dedicated macro lens for close-up shots. The S21 Ultra uses its ultrawide lens for macro, which might result in better image quality.
Selfie Camera20MP44MPS21 Ultra offers higher resolution selfies with a larger sensor, potentially capturing more detail and better low-light performance.
VideoUp to 8K@30fpsUp to 8K@24fpsBoth offer excellent video recording capabilities. S21 Ultra has HDR and better stabilization for professional video content creation.
DXOMark (Mobile)N/A115S21 Ultra has a tested and validated high-quality camera system.
DXOMark (Selfie)116135The S21 Ultra selfie camera performs substantially better.

Battery

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
Capacity5000mAh5000mAhSimilar battery capacity suggests comparable battery life. Actual battery life will depend on usage patterns.
Charging33W Fast Charging25W Fast ChargingMi 10T Pro charges faster, reducing downtime.
Wireless ChargingNo15WS21 Ultra supports convenient wireless charging.
Reverse Wireless ChargingNo9WS21 Ultra can wirelessly charge other devices like earbuds.
ChargerIncludedNot IncludedMi 10T Pro includes a charger.

Storage & RAM

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
Internal Storage128/256 GB128/256/512 GBS21 Ultra offers a 512GB option for users with extensive storage needs.
RAM8 GB12/16 GBS21 Ultra has more RAM, which is beneficial for heavy multitasking and demanding applications.
Expandable StorageNoNoNeither phone allows for storage expansion, so choose a model with sufficient internal storage.

Other

FeatureXiaomi Mi 10T Pro 5GSamsung Galaxy S21 Ultra 5GPractical Impact
Operating SystemAndroid 10 (upgradable to 11)Android 11 (upgradable to 15)S21 Ultra has a newer OS and longer software support, ensuring more features and security updates over time.
Bluetooth5.15.2S21 Ultra has a newer Bluetooth version, potentially offering improved connectivity and efficiency.
Audio QualityStereo SpeakersDolby Atmos, Hi-Res Audio, Stereo Speakers, Noise cancellation microphoneS21 Ultra provides a more immersive and higher-quality audio experience.
SecuritySide-mounted Fingerprint SensorUnder-display Fingerprint SensorBoth offer secure biometric authentication.
SensorsUltrasonic proximity virtual, Accelerometer, Compass, GyroscopeProximity, Barometer Accelerometer, Compass, GyroscopeS21 Ultra includes a barometer which can be helpful for weather-related activities.

2. Key Differences Analysis

Xiaomi Mi 10T Pro 5G Advantages:

  • Higher Refresh Rate: 144Hz display offers slightly smoother scrolling compared to 120Hz.
    • Practical Impact: May be noticeable for gamers and users who value extremely smooth animations, but the difference is subtle.
  • Faster Charging (33W vs 25W): Shorter charging times.
    • Practical Impact: Quicker battery top-ups, reducing downtime.
  • Includes Charger: No need to purchase a separate charger.
    • Practical Impact: Saves money and provides immediate usability.
  • Wider Aperture on Main Camera: Slightly better low-light performance.
    • Practical Impact: Potentially brighter and clearer photos in dark environments.
  • Potentially Lower Price: Offers good value for its features.
    • Practical Impact: A more budget-friendly option for users who don't need the absolute best specifications in every area.

Samsung Galaxy S21 Ultra 5G Advantages:

  • Superior Display: Higher resolution, AMOLED technology, and higher brightness.
    • Practical Impact: Significantly better viewing experience with sharper details, vibrant colors, excellent contrast, and excellent outdoor visibility.
  • More Powerful and Efficient Chipset: Exynos 2100 offers more consistent performance under sustained loads and better power efficiency.
    • Practical Impact: Smoother performance in demanding tasks and potentially longer battery life.
  • Versatile Camera System: Dual telephoto lenses, better selfie camera, and superior video capabilities.
    • Practical Impact: More flexibility in photography with excellent zoom capabilities and high-quality selfies.
  • Wireless Charging & Reverse Wireless Charging: Convenient charging options.
    • Practical Impact: Easy charging without cables and the ability to charge other devices.
  • More RAM: 12GB/16GB RAM options offer better multitasking performance.
    • Practical Impact: Smoother operation with multiple apps open and less reloading.
  • Hi-Res Audio and Dolby Atmos: Provides a much better listening experience
    • Practical Impact: Significantly improved audio
  • Newer Software & Longer Support: Android 11 and guaranteed future updates.
    • Practical Impact: Access to the latest features and security patches for a longer period.
  • Better Build Quality: Corning Gorilla Glass Victus provides far better screen protection
    • Practical Impact: Decreases chance of damaging the screen in the event of a drop

Significant Trade-offs:

  • Mi 10T Pro: Compromises on display quality, camera versatility, and software support to achieve a potentially lower price.
  • S21 Ultra: Higher price point may be a barrier for some users.

3. User Profiles & Recommendations

Xiaomi Mi 10T Pro 5G Ideal User:

  • Budget-conscious users who prioritize performance and battery life over display quality and camera versatility.
  • Gamers who value a high refresh rate display and fast charging.
  • Users who prefer to have a charger included in the box.

Use Cases for Mi 10T Pro 5G:

  • Gaming: High refresh rate and powerful processor provide a smooth gaming experience.
  • Streaming Video: Large battery capacity allows for extended viewing sessions.
  • Everyday Use: Reliable performance for standard tasks like browsing, social media, and communication.

Samsung Galaxy S21 Ultra 5G Ideal User:

  • Users who demand the best possible display and camera experience.
  • Professionals who need a versatile camera system for photography and videography.
  • Tech enthusiasts who value the latest features and software updates.

Use Cases for S21 Ultra 5G:

  • Photography & Videography: Capturing high-quality photos and videos in various situations with its versatile camera system.
  • Media Consumption: Enjoying movies, TV shows, and games on its stunning display.
  • Productivity: Multitasking with multiple apps and tasks thanks to ample RAM and a powerful processor.

4. Decision Framework

Key Questions for Buyers:

  1. How important is display quality to you? (If display quality is a top priority, the S21 Ultra is the clear choice.)
  2. What is your budget? (The Mi 10T Pro is likely more affordable.)
  3. How important are zoom capabilities in the camera? (If you need excellent zoom, the S21 Ultra is far superior.)

Scenario-Based Recommendations:

  • Scenario 1: Tight Budget, Gaming Focus: Choose the Xiaomi Mi 10T Pro 5G for its high refresh rate and fast charging.
  • Scenario 2: Photography Enthusiast: Choose the Samsung Galaxy S21 Ultra 5G for its versatile camera system and high-quality imaging.
  • Scenario 3: All-Around Premium Experience: Choose the Samsung Galaxy S21 Ultra 5G for its superior display, performance, and features.

My Choice

I would choose the Samsung Galaxy S21 Ultra 5G. While the Xiaomi Mi 10T Pro 5G offers good value, the S21 Ultra provides a significantly better overall experience. The superior display quality is a game-changer for media consumption and everyday use. The more versatile camera system, especially the zoom capabilities, makes it a much more capable tool for photography. Although the price is higher, the S21 Ultra's features, better build quality, and longer software support make it a worthwhile investment for 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.