Samsung Galaxy S21+ 5G vs Xiaomi 14 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 February 22, 2024
Release Year 2021 2024

Physical

Volume 95.23 cm³ 111.81 cm³
Screen Size to Weight Ratio 3.35 "/g 2.93 "/g
Weight 200 g 229.5 g
Height 161.5 mm 161.4 mm
Width 75.6 mm 75.3 mm
Thickness 7.8 mm 9.2 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Titanium Gray
  • Black
  • Blue
  • White

Display

Screen Size 6.7 " 6.73 "
Resolution 1080 x 2400 1440 x 3200
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 90 %
Pixel Density 394 PPI 522 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A 1000 nits
HBM Brightness N/A N/A
Peak Brightness 1300 nits 3000 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 110.39 mAh/in²
Battery Density 50.4 mAh/cm³ 44.72 mAh/cm³
Battery Capacity 4800 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU Mali-G78 MP14 - International Adreno 750

Connectivity

USB Version 3.2 3.2
OTG Support 1 1
DisplayPort 1
DisplayPort Version N/A N/A
USB Features USB Type-C 3.2, OTG USB Type-C 3.2, Gen 2, OTG, DisplayPort

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 15 18

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Samsung Galaxy S21+ 5G and Xiaomi 14 Ultra, focusing on practical implications:

FeatureSamsung Galaxy S21+ 5GXiaomi 14 UltraPractical Impact
Design
Dimensions161.5 × 75.6 × 7.8 mm161.4 × 75.3 × 9.2 mmXiaomi 14 Ultra is slightly thicker, which might feel bulkier in hand.
Weight200g229.5gSamsung S21+ 5G is noticeably lighter, more comfortable for prolonged use.
Display
Size6.7"6.73"Negligible difference in size.
Resolution1080x24001440x3200Xiaomi 14 Ultra offers much sharper text and images, better for media consumption and detailed work.
PPI394522Xiaomi 14 Ultra's higher pixel density leads to a clearer, more detailed display.
TechnologyAMOLEDAMOLEDIdentical display technology; both offer vibrant colors and deep blacks.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1300 nits3000 nitsXiaomi 14 Ultra is significantly brighter, highly visible in direct sunlight.
Performance
ChipsetExynos 2100 (5 nm)Snapdragon 8 Gen 3 (4 nm)Xiaomi 14 Ultra has much more recent and powerful chipset, leads to significantly better performance across the board.
AnTuTu Score749,1002,100,000Xiaomi 14 Ultra offers massively superior performance for intensive tasks, gaming, and multitasking.
GPUMali-G78 MP14Adreno 750Xiaomi 14 Ultra's GPU provides significantly better graphical performance for demanding games and applications.
Camera
Standard Camera12MP, f/1.8, 1/1.76", 1.80µm50MP, f/1.63, 1", 1.60µmXiaomi 14 Ultra captures much higher resolution and potentially better low-light photos due to a larger sensor.
Telephoto + Portrait64MP, f/2.0, 1/1.72", 0.80µmNoneSamsung S21+ 5G has a dedicated telephoto/portrait lens; Xiaomi 14 Ultra relies on digital zoom for these.
Selfie Camera10MP, f/2.2, 1/3.2", 1.22µm32MP, f/2.0, 1/3", 0.70µmXiaomi 14 Ultra captures higher resolution selfies with a wider aperture for better low light performance.
Telephoto LensNone50MP, f/1.8, 1/2.51", 0.64µmXiaomi 14 Ultra has a dedicated telephoto lens for zoomed shots; S21+ 5G lacks this.
Wide Angle + Macro12.2MP, f/2.2, 1/2.55", 1.40µm50MP, f/1.8, 1/2.51", 0.64µmXiaomi 14 Ultra captures higher resolution wide-angle shots with improved low-light performance.
VideoUp to 8K@24fpsUp to 8K@30fpsSimilar video recording capabilities, but Xiaomi 14 Ultra offers a wider range of frame rates and slow motion.
DxOMarkMain Score: 111Main Score: 149Xiaomi 14 Ultra has significantly better camera performance overall according to DxOMark scores.
Camera FeaturesTriple camera, RAWQuadruple camera, RAW 14 bits, LAF, Ultra stable videoXiaomi 14 Ultra offers a more comprehensive camera system, with advanced features.
Battery
Capacity4800 mAh5000 mAhMarginally larger battery in Xiaomi 14 Ultra, may result in a slightly better battery life.
Charging25W wired90W wired, 80W wirelessXiaomi 14 Ultra charges much faster both wired and wirelessly, significantly reducing downtime.
Battery Features15W Wireless, 4.5W Reverse80W Wireless, 10W Reverse, Paper P2/G1 chipXiaomi 14 Ultra offers faster wireless charging and better battery management.
Software
OSAndroid 11, upgradable to 15Android 14, upgradable to 18Xiaomi 14 Ultra offers a newer Android version with more updates.
Connectivity
WiFiWi-Fi 6Wi-Fi 7, Wi-Fi MiMOXiaomi 14 Ultra offers better network performance with the latest Wi-Fi standard.
BluetoothBluetooth 5.0Bluetooth 5.4Xiaomi 14 Ultra has a newer Bluetooth version with better connectivity.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoA-GPS, GLONASS, Beidou, QZSSXiaomi 14 Ultra offers more comprehensive satellite support for better GPS accuracy.
SIMDual SIM, eSIMDual SIMSamsung S21+ 5G supports eSIM for added flexibility.
Storage
Internal Storage128GB or 256GB256GB, 512GB or 1024GBXiaomi 14 Ultra offers more storage options.
RAM8GB12GB or 16GBXiaomi 14 Ultra has significantly more RAM, better for multitasking.
ExpandableNoNoNeither phone offers expandable storage.
Audio
Audio QualityDolby Atmos, Hi-Res Audio, Stereo Speakers, Noise cancellation micDolby Atmos, Hi-Res Audio, Stereo Speakers, 4 microphonesXiaomi 14 Ultra has more microphones and slightly enhanced audio capture.
Security
Fingerprint SensorBasic FingerprintBasic FingerprintBoth have similar fingerprint sensors.
Build Quality
Screen ProtectionGorilla Glass VictusGorilla Glass Victus 2Xiaomi 14 Ultra has newer Gorilla Glass with better scratch resistance.
Sensors
SensorsStandard Sensors, Hall, GeomagneticStandard Sensors, Gravity, RGBBoth have a comprehensive set of sensors, with slight variations.

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Lighter Weight: More comfortable for prolonged use, especially one-handed.
  • eSIM Support: Offers greater flexibility for users who switch between carriers or travel frequently.
  • Dedicated Telephoto Lens: Provides better optical zoom for portrait photography.

Xiaomi 14 Ultra Advantages:

  • Superior Performance: Much faster processor and more RAM for smooth multitasking, gaming, and resource-intensive tasks.
  • Significantly Better Display: Higher resolution, brightness, and PPI for better image quality and outdoor visibility.
  • Significantly Superior Camera System: Higher resolution sensors, larger sensors, telephoto lens, and more advanced features for superior photo and video quality.
  • Much Faster Charging: Significantly faster wired and wireless charging, reducing downtime.
  • More Storage and RAM Options: Offers larger storage and RAM variants for power users.
  • Newer Bluetooth and Wi-Fi Standards: Provides faster connectivity speeds and better stability.
  • More comprehensive GPS support: More satellite systems for better accuracy.

Trade-offs:

  • Xiaomi 14 Ultra is thicker and heavier, which might make it less comfortable for some users.
  • Samsung S21+ 5G is significantly older and has much lower performance and camera capabilities.
  • Xiaomi 14 Ultra lacks dedicated telephoto/portrait camera, but its telephoto lens is an advantage when zooming.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G Ideal Users:

  • Users who prioritize lightweight design and comfortable ergonomics.
  • Users who need eSIM support for international travel or easy switching between carriers.
  • Budget-conscious buyers who prefer a mid-range option and do not need the absolute best performance.
  • Users who don't need top-tier camera performance and more advanced feature sets.

Use Cases:

  • Everyday communication, browsing, and social media usage.
  • Light gaming and standard productivity tasks.
  • Casual photography and video capture.
  • Travelers who benefit from eSIM support and appreciate a lighter design.

Xiaomi 14 Ultra Ideal Users:

  • Power users who demand top-tier performance for gaming, multitasking, and demanding apps.
  • Photography enthusiasts and professionals who need the best camera capabilities.
  • Users who prioritize display quality for media consumption and detail-oriented work.
  • Users who value fast charging for convenience and minimizing downtime.
  • Those who want the latest in connectivity and technology.

Use Cases:

  • Intensive gaming and running high-performance applications.
  • Professional photography and videography, especially in challenging conditions.
  • Media creation and consumption (high-resolution videos, graphic design).
  • Heavy multitasking and productivity workflows.
  • Users who need the latest tech and connectivity options.

4. Decision Framework

Key Questions to Consider:

  1. Performance Needs: Do you need top-tier performance for gaming and demanding apps, or is moderate performance sufficient?
  2. Camera Priorities: Do you prioritize camera quality and features above all else, or is a good but not the absolute best camera sufficient?
  3. Budget: Are you comfortable with a high-end phone, or are you looking for a more budget-friendly option?

Scenario-Based Recommendations:

  • Scenario 1: Casual User: If you primarily use your phone for basic tasks like calling, texting, social media, and light browsing, the Samsung S21+ 5G will likely suffice. It's more affordable and meets these needs adequately.

  • Scenario 2: Power User/Photographer: If you are a heavy user who demands the best performance, superior display, and top-tier camera capabilities, the Xiaomi 14 Ultra is the clear choice.

  • Scenario 3: Balanced Needs: If you seek a balance of performance and price, and do not need an absolute top-tier device, it may be better to compare phones in a similar price bracket. The Samsung S21+ 5G is not competitive in terms of performance, camera, display, and battery against the Xiaomi 14 Ultra.

Final Decision

If I were choosing between these two phones, I would definitely choose the Xiaomi 14 Ultra.

Reasoning:

The Samsung Galaxy S21+ 5G, while a capable phone in its time, is significantly outclassed by the Xiaomi 14 Ultra in almost every meaningful metric. The Xiaomi 14 Ultra offers significantly better performance, a much better display, a far superior camera system, and much faster charging. The only advantage the S21+ 5G has is a lighter weight and eSIM support, which are minor conveniences compared to the huge upgrades offered by the Xiaomi 14 Ultra.

As someone who values high performance for gaming, professional-level camera capabilities, and a great display for media consumption, the Xiaomi 14 Ultra is simply the superior choice for my personal needs. While it's heavier and thicker, the trade-off is more than justified by the substantial improvements it offers. The camera performance alone is enough of an advantage to choose the Xiaomi.

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.

Key Strengths:

  • Mobile technology analysis
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.