Samsung Galaxy S21 5G vs Xiaomi Mix Flip - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 July 19, 2024
Release Year 2021 2024

Physical

Volume 85.33 cm³ 94.2 cm³
Screen Size to Weight Ratio 3.67 "/g 3.61 "/g
Weight 169 g 190 g
Height 151.7 mm 167.5 mm
Width 71.2 mm 74 mm
Thickness 7.9 mm 7.6 mm
Foldable Design No Yes
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Black
  • White
  • Purple

Display

Screen Size 6.2 " 6.86 "
Resolution 1080 x 2400 1224 x 2912
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 85.9 % 87.5 %
Pixel Density 421 PPI 460 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1300 nits 3000 nits

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 101.57 mAh/in²
Battery Density 46.88 mAh/cm³ 50.74 mAh/cm³
Battery Capacity 4000 mAh 4780 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 2.0
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.2, OTG USB Type-C 2.0

Software

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

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Samsung Galaxy S21 5G and Xiaomi Mix Flip, focusing on their practical implications:

Design

FeatureSamsung Galaxy S21 5GXiaomi Mix FlipPractical Impact
Form FactorStandardFoldableXiaomi Mix Flip offers a more compact design when folded, transforming into a tablet-like experience when unfolded; Samsung Galaxy S21 5G is a traditional, pocketable smartphone.
Dimensions151.7 x 71.2 x 7.9 mm167.5 x 74 x 7.6 mm (Unfolded)The Xiaomi Mix Flip is taller and slightly wider when unfolded, while the S21 5G is thicker. The Mix Flip is larger overall.
Weight169g190gThe S21 5G is noticeably lighter making it more comfortable for extended one-handed use. The Mix Flip's heavier weight is due to its foldable design.
Build QualityCorning Gorilla Glass Victus screenUnknown screen protectionThe S21 5G has superior screen protection with Gorilla Glass Victus, reducing the risk of scratches and cracks from drops. The Mix Flip's screen protection is not specified.

Display

FeatureSamsung Galaxy S21 5GXiaomi Mix FlipPractical Impact
Size6.2"6.86"The Mix Flip has a noticeably larger screen offering more space for content consumption, multitasking, and immersive viewing compared to the S21 5G.
Resolution1080 x 24001224 x 2912The Mix Flip has a much higher resolution resulting in sharper, clearer images and text, enhancing overall visual quality.
Pixel Density421 PPI460 PPIThe Mix Flip provides a slightly sharper display due to its higher pixel density, but both are very good in terms of sharpness
TechnologyAMOLEDThe S21 5G uses AMOLED which results in superior contrast, deeper blacks, and better power efficiency compared to the unknown display tech of the Mix Flip.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations with a 120Hz refresh rate.
Brightness1300 nits3000 nitsThe Mix Flip's significantly higher brightness makes it much easier to view in bright sunlight.

Performance

FeatureSamsung Galaxy S21 5GXiaomi Mix FlipPractical Impact
ChipsetExynos 2100 (5 nm)Snapdragon 8 Gen 3 (4 nm)The Mix Flip has a much newer and more powerful chipset, which means significantly faster performance, better app loading, and superior gaming capabilities.
AnTuTu Score749,1002,250,000The Mix Flip's vastly superior AnTuTu score translates to real-world advantages in terms of responsiveness and the ability to handle demanding tasks.
GPUMali-G78 MP14Adreno 750The Mix Flip's GPU will offer better graphics performance for gaming and other GPU-intensive tasks.

Camera

FeatureSamsung Galaxy S21 5GXiaomi Mix FlipPractical Impact
Standard Camera12MP, f/1.8, 1/1.76" Sony IMX555, 1.8µm50MP, f/1.7, 1/1.55" Omnivision OV50, 1.0µmThe Mix Flip's main camera has a higher resolution and slightly wider aperture, which allows it to capture more detailed images, especially in low light. The larger sensor size also helps in low light.
Telephoto Camera64MP, f/2.0, 1/1.72" Samsung S5KGW2, 0.8µm60MP, f/2.0, 1/2.8" Omnivision OV60A, 0.61µmThe S21 5G's telephoto camera has a slightly higher resolution and larger sensor, which may lead to better image quality at telephoto zoom.
Selfie Camera10MP, f/2.2, 1/3.2" Sony IMX374, 1.22µm32MP, f/2.0, 1/3" Omnivision OV32B, 0.7µmThe Mix Flip has a much higher resolution selfie camera with a wider aperture, capturing more detailed and brighter selfies.
Wide Angle/Macro Camera12.2MP, f/2.2, 1/2.55" Sony IMX563, 1.4µmNoneThe S21 5G offers a dedicated wide-angle/macro camera for versatile shots, while the Mix Flip lacks one.
VideoUp to 8K@24fps, 4K@60fps, multiple frameratesUp to 8K@24fps, 4K@60fps, multiple frameratesBoth offer similar high-resolution video capture capabilities.
DxOMarkMain: 111, Selfie: 132NoneThe S21 5G has been rated by DxOMark, and the scores can help benchmark camera capabilities. The Mix Flip lacks DxOMark scores.

Battery

FeatureSamsung Galaxy S21 5GXiaomi Mix FlipPractical Impact
Capacity4000mAh4780mAhThe Mix Flip's larger battery should provide longer usage time between charges.
Charging25W Fast Charging, 15W Wireless, 4.5W Reverse Wireless67W Fast ChargingThe Mix Flip charges significantly faster, reducing downtime. The S21 5G does offer the added convenience of wireless charging and reverse wireless charging.
FeaturesReverse Charging, 15W Wireless Charging, Reverse Wireless ChargingXiaomi Pengpai G1 & R1The S21 5G offers wireless and reverse wireless charging, a benefit for compatible devices. The Mix Flip is equipped with proprietary battery management chips for improved performance.

Other

FeatureSamsung Galaxy S21 5GXiaomi Mix FlipPractical Impact
Operating SystemAndroid 11 (upgradable to 15)Android 14The Mix Flip is more up-to-date with the OS, resulting in the latest features and security patches.
Wi-FiWi-Fi 6Wi-Fi 7The Mix Flip supports the latest Wi-Fi standard, offering faster speeds and better performance on compatible networks.
Bluetooth5.05.4The Mix Flip has a newer version of Bluetooth offering better efficiency and wider codec support.
Storage Options128GB or 256GB, no expandable256GB/512GB/1024GB, no expandableThe Mix Flip offers substantially more storage and in more varied tiers.
RAM Options8GB12GB or 16GBThe Mix Flip provides a more powerful performance experience, especially for heavy multi-taskers.
AudioDolby Atmos, Stereo Speakers, Noise Cancelling MicDolby Atmos, Stereo Speakers, Hi-Res AudioThe Mix Flip has high resolution audio playback, while the S21 has a noise cancelling mic.
SecurityBasic fingerprint sensorSide-mounted fingerprint sensorThe Mix Flip has a more convenient fingerprint sensor location.
SensorsFull suite plus hall and geomagnetic sensor.Full suite of standard sensors.The S21 5G is well equipped with sensors for enhanced functionality

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Lighter and more compact: Easier for one-handed use and portability.
  • AMOLED Display: Superior contrast, blacks, and color vibrancy.
  • Wireless charging: Convenience of wireless and reverse wireless charging capabilities.
  • Wide Angle + Macro Camera: Offers added flexibility for different photography styles.
  • Established Camera Performance: Camera performance is well documented through DxOMark ratings.

Practical Implications: The S21 5G is excellent for those who prefer a traditional smartphone design and value a high-quality AMOLED display. Its wireless charging and additional macro camera add convenience and versatility. The weight and size also contribute to a better overall handling experience.

Xiaomi Mix Flip Advantages:

  • Foldable Design: Unique form factor, offering a compact design when folded and a larger screen when unfolded.
  • Significantly Better Performance: Top-tier chipset, higher benchmark scores leading to a far faster experience.
  • Larger and Sharper Display: More immersive viewing and multitasking.
  • Superior Brightness: Excellent outdoor visibility.
  • Much Larger Battery: Longer battery life due to larger battery capacity and faster charging.
  • More Storage: Offers substantially more onboard storage for your photos, videos and apps.
  • Newer Technology: Includes Wi-Fi 7, and Bluetooth 5.4
  • Better Selfie Camera: Significantly higher resolution and wider aperture.
  • High Res Audio: Includes Hi-Res Audio playback

Practical Implications: The Mix Flip is ideal for users who prioritize performance, large screens, and the novelty of a foldable design. Its performance makes it better for demanding tasks. The brighter screen is essential for outdoor use and its large battery life is very important.

Significant Trade-Offs:

  • S21 5G: Older chipset, smaller screen, average battery life.
  • Mix Flip: Larger and heavier (especially unfolded), unknown display technology and protection, lacks a macro lens.

3. User Profiles & Recommendations

Ideal User for Samsung Galaxy S21 5G:

  • Users who prefer traditional smartphone designs.
  • Those who want a lightweight and pocketable phone.
  • Individuals who prioritize display quality (AMOLED) and wireless charging
  • Users who prioritize a comprehensive camera experience.

Use Cases:

  • Everyday use, social media, web browsing, and standard photography.
  • Users who value comfort and handling for one-handed use.

Ideal User for Xiaomi Mix Flip:

  • Users who prioritize top-tier performance and cutting-edge tech.
  • Individuals interested in a foldable device with a large screen experience.
  • Gamers and heavy users.
  • Those who need long battery life and faster charging.
  • Those who do a lot of outdoor viewing on their phone.

Use Cases:

  • Mobile gaming, video editing, multitasking, and content creation.
  • Users who desire a large screen for immersive entertainment and productivity.

Price-to-Value: The Samsung Galaxy S21 5G will likely be much cheaper than the Xiaomi Mix Flip, making it a better price-to-value option for those on a budget. The Mix Flip will justify its cost for those who want the latest tech and high performance.

4. Decision Framework

Key Questions for Buyers:

  1. Form Factor Preference: Do you prefer a traditional smartphone or the unique experience of a foldable?
  2. Performance Needs: Do you need the fastest possible performance for gaming and demanding apps, or is the S21's performance sufficient for your needs?
  3. Budget: How much are you willing to spend on a new smartphone? Is it within your budget for a foldable device, or is the S21 a more sensible choice?

Scenario-Based Recommendations:

  • Scenario 1: Budget-Conscious User with Basic Needs: If you want a well-rounded smartphone for everyday use and are looking to save money, the Samsung Galaxy S21 5G is the better option.
  • Scenario 2: Performance User with High Demands: If you prioritize top-tier performance, the latest technology and a larger, more immersive screen, the Xiaomi Mix Flip is the superior choice.
  • Scenario 3: Foldable Fanatic: If you want to experience the benefits of a foldable device, and are willing to pay for it, the Xiaomi Mix Flip is the only real option.

My Choice

I would choose the Xiaomi Mix Flip.

While the Samsung Galaxy S21 5G is a capable phone with a solid AMOLED screen and good enough performance for the average user, the Mix Flip's advantages are too significant to ignore for me. The foldable design offers a larger screen for content consumption, which is a big plus. Its much more powerful chipset will result in a smoother, faster overall experience. The significantly higher brightness, larger battery with faster charging, larger storage, and better selfie camera all contribute to a superior experience for my use cases. While I would be losing out on the S21's macro lens and wireless charging, these are trade-offs I would be willing to make in exchange for the advantages offered by the Mix Flip. Ultimately, the modern performance and features of the Mix Flip are worth the cost for the extra capability.

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.