vivo V21 5G vs Motorola Moto G31 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date May 6, 2021 December 6, 2021
Release Year 2021 2021

Physical

Volume 86.15 cm³ 102.89 cm³
Screen Size to Weight Ratio 3.66 "/g 3.54 "/g
Weight 176 g 181 g
Height 159.7 mm 161.9 mm
Width 73.9 mm 73.9 mm
Thickness 7.3 mm 8.6 mm
Foldable Design No No
Available Colors
  • Arctic White
  • Dusk Blue
  • Sunset Dazzle
  • Mineral Grey
  • Baby Blue

Display

Screen Size 6.44 " 6.4 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.8 % 82.7 %
Pixel Density 409 PPI 411 PPI
Refresh Rate 90 Hz N/A
Typical Brightness 500 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 96.45 mAh/in² 122.07 mAh/in²
Battery Density 46.43 mAh/cm³ 48.59 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Mediatek MT6769Z Helio G85 (12 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G57 MC3 Mali-G52 MC2

Connectivity

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

Software

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

Comparison Summary

Smartphone Comparison: vivo V21 5G vs. Motorola Moto G31

1. Specifications Comparison

Featurevivo V21 5GMotorola Moto G31Practical Impact
Design
Dimensions159.7 × 73.9 × 7.3 mm161.9 × 73.9 × 8.6 mmMoto G31 is slightly taller and thicker, making V21 5G potentially more pocketable and comfortable for those with smaller hands.
Weight176g181gV21 5G is slightly lighter, which might be noticeable during extended use and reduce fatigue.
Display
Size6.44"6.4"Very similar screen sizes, the difference is negligible in practical use.
Resolution1080x24001080x2400Identical sharpness, both display crisp and detailed visuals.
PPI409411Virtually indistinguishable pixel density, both offer similar text and image clarity.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors, deep blacks, and good viewing angles.
Refresh Rate90Hz60HzV21 5G offers smoother scrolling, animations and a more fluid user experience, especially noticeable during gaming.
Brightness0 nits0 nitsBoth phones have identical peak brightness at 0 nits (data missing)
Performance
ChipsetMediatek Dimensity 800U (7 nm)Mediatek MT6769Z Helio G85 (12 nm)V21 5G has a more powerful and efficient chipset, leading to better app performance, smoother multitasking, and faster gaming.
AnTuTu Score343,150225,154V21 5G demonstrates significantly better performance, resulting in a snappier and more responsive user experience.
GPUMali-G57 MC3 (ARM Mali-G57 MC3)Mali-G52 MC2 (Arm Mali-G52 MC2)V21 5G has a more powerful GPU, offering superior graphics for gaming and graphically intensive applications.
Battery
Capacity4000mAh5000mAhMoto G31 has a larger battery, likely providing significantly longer battery life for all-day usage, especially for heavy users.
Charging33W fast charging10W fast chargingV21 5G charges much faster, getting you back to full power in significantly less time.
Camera
Main Camera Res64MP, f/1.7950MP, f/1.8, 1/2.76"V21 5G has higher resolution but slightly smaller pixel size on the main sensor, with a wider aperture which may improve low light performance, sensor size unavailable for V21 5G
Selfie Camera Res44MP, f/2.0, 1/2.65"13MP, f/2.2V21 5G has a vastly superior selfie camera with much higher resolution and a wider aperture, leading to better selfie detail and low light performance.
Wide Angle Res8MP, f/2.28MP, f/2.0, 1.12 µm pixel sizeMoto G31 has a wider aperture which may improve low light performance but sensor size is unavailable for V21 5G
Macro Camera Res2MP, f/2.42MP, f/2.4, 1.75 µm pixel sizeComparable macro cameras for close-up shots. The Motorola Moto G31 has larger pixel size on its macro lens, improving low light performance
VideoUp to 4K@30fps with OIS1080p@30fpsV21 5G supports higher resolution video recording (4K) with Optical Image Stabilization (OIS) resulting in sharper videos and reduced shakiness.
Software
OSAndroid 11Android 11Both run the same base OS.
Connectivity
Wi-Fi802.11ac802.11acBoth have similar Wi-Fi capabilities.
Bluetooth5.1 LE with aptX, LDAC, SBC5.0 LEV21 5G has a slightly newer Bluetooth version with additional audio codecs for better audio quality over wireless headphones.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, SUPL, GalileoMotorola Moto G31 has additional SUPL
Storage
Internal128/256 GB64/128 GBV21 5G offers larger storage options, allowing for more photos, videos, and apps.
RAM8GB4GBV21 5G has double the RAM, which results in better multitasking and smoother app switching.
ExpandableNoNoNeither phone has expandable storage.
Audio
Audio QualityBasic audio featuresDolby Atmos, 2 microphonesMotorola Moto G31 provides an enhanced audio experience with Dolby Atmos and 2 microphones for better sound recording.
Security
FingerprintBasic FingerprintSide-mounted fingerprintMotorola Moto G31 has a more convenient and modern fingerprint sensor.
SensorsBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, GyroscopeBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, Gyroscope, HallMotorola Moto G31 has additional Hall sensor

2. Key Differences Analysis

vivo V21 5G Advantages:

  • Superior Performance: The Dimensity 800U chipset offers significantly better performance than the Helio G85, resulting in a smoother and faster user experience. This translates to faster app loading, better multitasking, and improved gaming performance.
  • Enhanced Display: The 90Hz refresh rate provides a noticeably smoother visual experience.
  • Superior Camera System: Higher resolution front and back camera sensors and 4k video recording, optical image stabilization and wider apertures contribute to improved image and video quality, especially for selfies and video.
  • Faster Charging: 33W fast charging gets the phone to full power more quickly.
  • More RAM and Storage: 8GB of RAM enables better multitasking, and larger storage options allows more apps, videos, and photos.
  • Newer Bluetooth version: Support for Bluetooth 5.1 with aptX, LDAC, SBC for better wireless audio.

Motorola Moto G31 Advantages:

  • Significantly Larger Battery: 5000mAh battery offers much longer battery life compared to the V21 5G, making it suitable for users needing all-day power.
  • Enhanced Audio: Dolby Atmos support, with 2 microphones provides a superior audio experience.
  • Side-mounted Fingerprint Sensor: A more convenient and modern fingerprint sensor position.
  • Wider Aperture Wide Angle Lens: f/2.0 versus the f/2.2 of the V21 could provide better low light performance.
  • Hall Sensor: Additional sensor for advanced use cases.

Trade-offs:

  • V21 5G: Sacrifices battery life for better performance and camera.
  • Moto G31: Sacrifices performance and camera capabilities for significantly longer battery life.

3. User Profiles & Recommendations

vivo V21 5G is ideal for:

  • Performance Users: Gamers, heavy app users, or those who value responsiveness and speed.
  • Photography Enthusiasts: Users who prioritize camera quality, especially for selfies and video recording.
  • Users who want a smooth display: 90hz is noticeably smoother.
  • Users who value Fast Charging: Need their phone charged quickly.
  • Users who desire large storage: Offers up to 256GB of internal storage.

Specific use cases:

  • Mobile gaming, video editing on the go, frequent social media use with high-quality content creation, consuming media with high refresh rate support.

Motorola Moto G31 is ideal for:

  • Battery-Conscious Users: Those who prioritize battery life and need a phone that lasts all day without needing to be charged.
  • Audio Lovers: Those who value enhanced audio experience through Dolby Atmos.
  • Budget-Conscious Users: Likely to be more affordable with decent features.
  • Users who value side-mounted fingerprint sensor: The side-mounted sensor is more modern.

Specific use cases:

  • Long workdays away from power outlets, frequent travelers, listening to music and podcasts, basic phone functions without demanding performance needs.

4. Decision Framework

Key Questions to Consider:

  1. How important is battery life to you? If you prioritize all-day battery, Moto G31 is a better option.
  2. How important is performance and camera quality? If speed and high-quality media are more crucial, the V21 5G is the clear winner.
  3. What is your budget? The Moto G31 will probably be more affordable than the vivo V21 5G.

Scenario-Based Recommendations:

  • Scenario 1: You are a gamer who also takes lots of selfies. Recommendation: The vivo V21 5G is the clear choice, it has higher performance, better camera, and 90hz refresh rate.
  • Scenario 2: You need a phone that lasts all day and you use it for basic tasks only. Recommendation: The Motorola Moto G31 is a better option, with a large battery and decent enough specs for basic tasks.
  • Scenario 3: You use your phone frequently throughout the day for various tasks and you also enjoy streaming videos and audio. Recommendation: This depends more on if you prefer long battery life or better performance and camera. If you prefer long battery, go with the Motorola Moto G31. If you prefer better performance and camera, choose the vivo V21 5G

My Choice

If I had to choose between the two, I would personally choose the vivo V21 5G. While the larger battery of the Motorola Moto G31 is appealing, the significant performance difference with the Dimensity 800U, the superior camera system, especially the selfie camera, and the smoother 90Hz display of the vivo V21 5G are more valuable to me. I prioritize performance and image/video quality for my daily usage scenarios. I also prefer faster charging, which the V21 5G has, and can manage to charge my phone at least once a day. The Moto G31 has its advantages, especially for those needing extreme battery life, but the V21 5G is a more well rounded package that suits my needs better.

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.