Xiaomi Redmi Note 10S vs vivo V21 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date April 28, 2021 May 6, 2021
Release Year 2021 2021

Physical

Volume 99.25 cm³ 86.15 cm³
Screen Size to Weight Ratio 3.6 "/g 3.66 "/g
Weight 178.8 g 176 g
Height 160.5 mm 159.7 mm
Width 74.5 mm 73.9 mm
Thickness 8.3 mm 7.3 mm
Foldable Design No No
Available Colors
  • Shadow Black (Onyx Gray)
  • Deep Sea Blue (Ocean Blue)
  • (Frost White) Pebble White
  • Arctic White
  • Dusk Blue
  • Sunset Dazzle

Display

Screen Size 6.43 " 6.44 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 83.5 % 84.8 %
Pixel Density 409 PPI 409 PPI
Refresh Rate N/A 90 Hz
Typical Brightness 450 nits 500 nits
HBM Brightness N/A N/A
Peak Brightness 1100 nits N/A

Hardware

Battery Capacity per Screen Area 120.93 mAh/in² 96.45 mAh/in²
Battery Density 50.38 mAh/cm³ 46.43 mAh/cm³
Battery Capacity 5000 mAh 4000 mAh
NFC Support Yes Yes
Chipset Mediatek MT6785V/CD Helio G95 (12 nm) Mediatek Dimensity 800U (7 nm)
CPU Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G76 MC4 Mali-G57 MC3

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 13

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Xiaomi Redmi Note 10S and the vivo V21 5G, focusing on practical implications for the user:

Design

FeatureXiaomi Redmi Note 10Svivo V21 5GPractical Impact
Dimensions160.5 × 74.5 × 8.3 mm159.7 × 73.9 × 7.3 mmXiaomi is slightly larger and thicker; vivo is thinner and may feel more sleek.
Weight178.8g176gNegligible difference, both feel similar in hand.

Display

FeatureXiaomi Redmi Note 10Svivo V21 5GPractical Impact
Size6.43"6.44"Virtually identical screen size.
Resolution1080x24001080x2400Same sharpness; both provide crisp visuals.
PPI409409Same pixel density; both will look equally sharp.
TechnologyAMOLEDAMOLEDVibrant colors and deep blacks on both devices.
Refresh Rate60Hz90Hzvivo V21 5G offers smoother scrolling and animations, more responsive feel.
Brightness1100 nits0 nitsXiaomi Redmi Note 10S is significantly brighter, much better visibility in direct sunlight. The vivo spec is missing and could be a mistake.

Performance

FeatureXiaomi Redmi Note 10Svivo V21 5GPractical Impact
ChipsetMediatek Helio G95 (12 nm)Mediatek Dimensity 800U (7 nm)Dimensity 800U (7 nm) is typically more power-efficient, but Helio G95 has higher benchmark scores.
AnTuTu Score409,874343,150Xiaomi Redmi Note 10S performs slightly better in synthetic benchmarks, generally better gaming performance.
GPUMali-G76 MC4 (Arm Mali-G76 3EEMC4720 MHz)Mali-G57 MC3 (ARM Mali-G57 MC3)Xiaomi offers better graphic rendering capabilities on paper

Camera

FeatureXiaomi Redmi Note 10Svivo V21 5GPractical Impact
Standard Camera64MP, f/1.79, 1/2", 0.70µm (Omnivision OV64B)64MP, f/1.79, 0.80µmSimilar primary camera performance, but sensor model is missing for the Vivo.
Selfie Camera13MP, f/2.45, 1/3.06", 1.12µm (Omnivision OV13B10)44MP, f/2.0, 1/2.65", 0.70µm (Samsung S5KGH1)vivo V21 5G offers higher resolution, wider aperture, and larger sensor; superior for selfies, especially in low light.
Wide Angle Lens8MP, f/2.2, 1/2.8" (Sony IMX355), 1.14µm8MP, f/2.2,Both offer the same aperture, but sensor model is missing for the Vivo.
Portrait Mode (Depth)2MP, f/2.4, 1/5", 1.75µm (GalaxyCore GC02M1)NoneXiaomi Redmi Note 10S has a dedicated depth sensor for better portrait photos.
Macro Lens2MP, f/2.4, 1/5", 1.75µm (Omnivision OV02B10)2MP, f/2.4Both offer similar macro lens capabilities, sensor model missing for Vivo.
VideoUp to 4K@30fps, No stabilization, 960fps slow-moUp to 4K@30fps with OIS, 120fps slow-movivo V21 5G offers better stabilization, superior for capturing smooth videos.

Battery

FeatureXiaomi Redmi Note 10Svivo V21 5GPractical Impact
Capacity5000mAh4000mAhXiaomi Redmi Note 10S should offer significantly longer battery life, especially with moderate to heavy usage.
Charging33W Fast Charging33W Fast ChargingBoth phones charge quickly.
FeaturesReverse Charging, Non-removableNon-removableXiaomi can be used to charge other devices.

2. Key Differences Analysis

Here's a breakdown of each phone's key advantages:

Xiaomi Redmi Note 10S Advantages:

  • Superior Battery Life: Larger 5000mAh battery offers significantly longer use between charges.
  • Higher Benchmark Performance: Better benchmark scores indicate slightly better performance for gaming and demanding tasks.
  • Brighter Display: 1100 nits peak brightness makes it significantly more usable in bright sunlight.
  • Additional Cameras: Dedicated depth sensor for portrait mode and reverse charging feature
  • Hi-Res Audio: High quality audio playback with stereo speakers.

vivo V21 5G Advantages:

  • Smoother Display: 90Hz refresh rate provides a more fluid visual experience for browsing and animations.
  • Superior Selfie Camera: 44MP high-resolution front camera with wider aperture and a larger sensor for better selfies.
  • Better Video Recording: Optical image stabilization (OIS) offers superior video recording quality, with smooth videos even when moving.
  • Newer Bluetooth: Bluetooth 5.1 offers better connection and more features.

Trade-offs:

  • Xiaomi Redmi Note 10S: Trades slightly lower display smoothness (60Hz) for better brightness, battery life, benchmark performance, and more versatile camera setup.
  • vivo V21 5G: Trades battery capacity and benchmark performance for a better display refresh rate, a much better selfie camera and video recording with OIS.

3. User Profiles & Recommendations

Xiaomi Redmi Note 10S is ideal for:

  • Power Users: Users who prioritize battery life, performance, and gaming.
  • Outdoor Users: Those who need good screen visibility in bright sunlight, thanks to its brighter display.
  • Budget Conscious Users: Those seeking great value, with solid performance and key features at a competitive price.
  • Camera enthusiasts (back camera): Those looking for a more versatile back camera with a depth sensor

Use Cases:

  • Long hours of usage without needing to recharge.
  • Gaming, social media, and heavy multitasking.
  • Taking pictures outdoors in bright conditions.

vivo V21 5G is ideal for:

  • Selfie Enthusiasts: Users who prioritize high-quality front-facing cameras for photos and videos.
  • Social Media Users: Those who want smoother scrolling, better video recording with OIS, and great selfies.
  • Users who want a sleeker design: The thinner design is more appealing.
  • Multimedia consumers: Those looking for a smoother visual experience when watching videos and browsing social media.

Use Cases:

  • Taking high-quality selfies and vlogs.
  • Watching videos with a smooth display.
  • Daily use and social media.

Price-to-Value Ratio:

  • Both are mid-range phones, however Xiaomi is generally considered the more budget-friendly option.
  • The Xiaomi excels in battery and performance, while the Vivo is preferred for its cameras and display smoothness, the choice comes down to personal preference.

4. Decision Framework

Here are three key questions to guide your decision:

  1. What is more important to you, display smoothness (90Hz), or brightness and battery life?

    • If smooth scrolling and animations are your priority, the vivo V21 5G is better. If brightness and battery life is more important, the Xiaomi Redmi Note 10S is better.
  2. How often do you take selfies and record videos?

    • If you prioritize high-quality selfies and want video stabilization, the vivo V21 5G is a strong contender. If you want a more versatile main camera, the Xiaomi is better
  3. Is overall performance, gaming, and a slightly better camera more important to you or is a better selfie camera and screen smoothness?

    • If you are a performance-oriented gamer, the Xiaomi Redmi Note 10S is more suitable. If you want a more well-rounded experience with more emphasis on multimedia and selfies the vivo V21 5G may be preferred.

Scenario-Based Recommendations:

  • Scenario 1: Outdoor use and long battery: Choose the Xiaomi Redmi Note 10S for its brighter screen and extended battery life.
  • Scenario 2: Frequent selfies and social media videos: Choose the vivo V21 5G for its high-quality selfie camera, video stabilization, and smooth display.
  • Scenario 3: Gaming and demanding tasks: Choose the Xiaomi Redmi Note 10S for its superior performance and larger battery.

My Choice

If I had to choose between these two phones, I would pick the Xiaomi Redmi Note 10S. While the 90Hz display of the vivo V21 5G is appealing, the significantly better battery life and brighter screen of the Xiaomi would better suit my needs. Also, while I enjoy taking selfies, the advantages of the Redmi's main camera, including its depth sensor and overall performance for daily use and gaming are more important to me. It’s a more versatile choice with better performance and battery, which is a priority in my daily use scenarios. I also appreciate the extra audio features, like stereo speakers and Hi-Res Audio.

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
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Bridging technical complexity with engaging, accessible narratives.