vivo V21 5G vs realme 8 - Detailed Phone Comparison

Detailed Comparison

Specification
realme 8
Realme

General

Launch Date May 6, 2021 May 28, 2024
Release Year 2021 2024

Physical

Volume 86.15 cm³ 105.85 cm³
Screen Size to Weight Ratio 3.66 "/g 3.55 "/g
Weight 176 g 191 g
Height 159.7 mm 162 mm
Width 73.9 mm 75.1 mm
Thickness 7.3 mm 8.7 mm
Foldable Design No No
Available Colors
  • Arctic White
  • Dusk Blue
  • Sunset Dazzle
  • Fluid Silver
  • Razor Green

Display

Screen Size 6.44 " 6.78 "
Resolution 1080 x 2400 1264 x 2780
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.8 % 91.8 %
Pixel Density 409 PPI 450 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 500 nits 1000 nits
HBM Brightness N/A 1600 nits
Peak Brightness N/A 6000 nits

Hardware

Battery Capacity per Screen Area 96.45 mAh/in² 119.65 mAh/in²
Battery Density 46.43 mAh/cm³ 51.96 mAh/cm³
Battery Capacity 4000 mAh 5500 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Qualcomm SM7675 Snapdragon 7+ Gen 3 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (1x2.8 GHz Cortex-X4 & 4x2.6 GHz Cortex-A720 & 3x1.9 GHz Cortex-A520)
GPU Mali-G57 MC3 Adreno 732

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 14
Maximum OS Version

Comparison Summary

1. Specifications Comparison

Featurevivo V21 5Grealme 8Practical Impact
Design
Launch Date2021-05-062024-05-28realme 8 is significantly newer, likely with updated software and potentially better hardware features.
Dimensions159.7 × 73.9 × 7.3 mm162 × 75.1 × 8.7 mmrealme 8 is larger, bulkier, and less pocketable; V21 5G is slimmer and lighter, potentially more comfortable for single-handed use.
Weight176g191gV21 5G is lighter, making it more comfortable for prolonged use; realme 8 is heavier, might feel more substantial.
Display
Size6.44"6.78"realme 8 offers a larger screen, better for media consumption and gaming; V21 5G is slightly more compact, better for one-handed operation.
Resolution1080x24001264x2780realme 8 has a sharper display with more detail, enhancing text clarity and image quality.
PPI409450realme 8's higher pixel density will result in a slightly sharper and more detailed display.
TechnologyAMOLEDAMOLEDBoth displays offer vibrant colors and deep blacks.
Refresh Rate90Hz120Hzrealme 8 has a smoother screen refresh, making animations and scrolling feel more fluid; V21 5G is still good, but slightly less so.
Brightness0 nits0 nitsBoth phones have identical peak brightness. It is unclear if this is incorrect data.
Performance
ChipsetMediatek Dimensity 800U (7 nm)Qualcomm Snapdragon 7+ Gen 3 (4 nm)realme 8 has a significantly more powerful and efficient chipset, offering better performance in demanding apps and games.
Antutu Score343,150N/AInsufficient data to directly compare benchmark performance; realme 8 is expected to perform much better due to the newer, more powerful chipset.
GPUMali-G57 MC3Adreno 732realme 8's Adreno 732 is significantly more capable, providing superior graphics performance for gaming and other graphically intensive tasks.
Camera
Standard Camera64MP, f/1.79N/AV21 5G has a standard camera setup with detailed images. realme 8 doesn't have a standard camera according to this spec sheet.
Selfie Camera44MP, f/2.0, 1/2.65" sensorN/AV21 5G has a high-resolution front camera for detailed selfies; realme 8 does not have a selfie camera according to this spec sheet.
Wide Angle Lens8MP, f/2.2N/AV21 5G offers a wide-angle lens for group shots and landscapes, but realme 8 doesn't have this feature according to this spec sheet.
Macro Lens2MP, f/2.4N/AV21 5G includes a dedicated macro lens for close-up photography. realme 8 doesn't have a macro lens according to this spec sheet.
Video Recording4K@30fps (OIS), 1080p@60fps (OIS)4K@60fps (OIS/EIS), 1080p@120fps (OIS/EIS)realme 8 can record at 60FPS in 4K, with Optical and Electronic stabilization and at 120FPS in 1080p with Optical and Electronic stabilization. The V21 5G is also capable of recording 4K with OIS up to 30fps, and can record 1080p with OIS up to 60fps.
Camera FeaturesExtensive set of featuresV21 5G includes features like Digital zoom, Triple camera, Digital image stabilization, OIS, Ultra stable video, Autofocus, and more. realme 8 has basic features.
Battery
Capacity4000mAh0 mAhV21 5G has a significant battery, providing a full day of usage for most users. realme 8 battery capacity is unknown based on these specifications.
Charging33W Fast ChargingStandard chargingV21 5G charges significantly faster, reducing downtime; realme 8 charging speed is unknown based on the given specs.
Software
OSAndroid 11Android 14realme 8 comes with a newer version of Android, offering more features, security updates, and potentially better performance.
Connectivity
Wi-Fi802.11ac, etcV21 5G supports more Wi-Fi standards, including Dual Band, Wi-Fi Hotspot, Wi-Fi Direct and Wi-Fi Display.
BluetoothBluetooth 5.1 LEV21 5G has a newer version of Bluetooth, providing better stability and faster data transfer.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoV21 5G supports more satellite navigation systems, enabling more accurate location tracking.
SIMDual SIM Dual StandbyV21 5G offers dual SIM capabilities for using two numbers on the same device simultaneously.
Storage
Internal Storage128GB or 256GBV21 5G provides sufficient storage for photos, videos, and apps. realme 8 internal storage is not specified in the given data.
RAM8 GBV21 5G has sufficient RAM for smooth multitasking and general usage. realme 8 RAM is not specified in the given data.
Expandable StorageNoNoNeither phone supports expandable storage.
Audio
Audio QualityBasic Audio FeaturesBasic Audio FeaturesBoth phones appear to have similar audio features according to provided specifications.
Security
FeaturesBasic Fingerprint SensorBasic Fingerprint SensorBoth phones offer fingerprint recognition.
Build Quality
ProtectionUnknownUnknownScreen protection is unknown for both phones
Sensors
SensorsComprehensive setBasic sensorsV21 5G features a more extensive set of sensors for advanced features and functionality. realme 8 has basic sensors.

2. Key Differences Analysis

vivo V21 5G Advantages:

  • Lighter and Slimmer Design: Easier to handle and more pocketable.
  • More Comprehensive Camera System: Dedicated selfie, wide-angle, and macro cameras, with optical image stabilization (OIS) for video.
  • Fast Charging: Supports 33W fast charging which is a practical convenience.
  • Comprehensive Connectivity: Offers more advanced Wi-Fi, Bluetooth, and GPS systems.
  • Feature-Rich Camera Software: Includes advanced features like OIS, and multiple shooting modes.

Practical Implications for vivo V21 5G:

  • Better for users who prioritize portability and comfortable handling.
  • Excellent for photography enthusiasts seeking versatile shooting capabilities.
  • Good option for travellers with enhanced satellite navigation capabilities.

realme 8 Advantages:

  • Newer Chipset and GPU: Significantly faster performance in apps and gaming due to the newer Qualcomm Snapdragon 7+ Gen 3 processor.
  • Higher Refresh Rate Display: 120Hz screen offers a smoother viewing experience.
  • Newer Operating System: Runs on Android 14.

Practical Implications for realme 8:

  • Ideal for gamers and power users who demand top-tier performance.
  • Best for those who consume a lot of media due to the larger, higher resolution display.
  • Provides the benefits of the latest android OS.

Significant Trade-offs:

  • vivo V21 5G: Older chipset compared to the realme 8. Heavier and bulkier than the V21 5G.
  • realme 8: The specification data for this device is incomplete, but according to the provided spec sheet, the realme 8 lacks a standard camera, selfie camera, wide angle lens, macro lens, and battery.

3. User Profiles & Recommendations

vivo V21 5G:

  • Ideal User: Casual user, social media enthusiast, photography lover, or someone who values a lightweight and comfortable phone.
  • Use Cases:
    • Everyday use such as social media, web browsing, and communication.
    • Taking high-quality selfies and photos with a variety of camera options.
    • Travelers who need accurate GPS and fast charging capabilities.
    • Users who appreciate a slim and light smartphone for day to day use.

realme 8:

  • Ideal User: Gamers, power users, media consumers, and users who want top-tier performance at a great value.
  • Use Cases:
    • Playing graphics-intensive games.
    • Watching videos and movies on a large, high-resolution display.
    • Users who want a phone with the newest features with the latest android software.
    • Heavy multitaskers who need quick loading speeds.

Price-to-Value Ratio:

  • The vivo V21 5G may offer slightly better value if focusing on portability, camera versatility and general everyday use with good performance.
  • The realme 8 has a higher value for those who prioritize raw performance, gaming, and latest OS features and are willing to sacrifice portability. Note that there's a lot of missing spec data for the realme 8.

4. Decision Framework

Key Questions for Buyers:

  1. What is your primary use case? (Gaming, photography, everyday use, etc.)
  2. Is portability or performance more important to you?
  3. What are your camera requirements? (Selfies, versatility, low-light performance, etc.)

Scenario-Based Recommendations:

  • If you're a casual user who values comfort and camera versatility: The vivo V21 5G is recommended due to its lightweight design, comprehensive camera system, and fast charging.
  • If you're a gamer or power user who values performance and the latest software: The realme 8 is better because of its significantly faster chipset and higher refresh rate display.
  • If you want a well rounded phone: The vivo V21 5G is the better recommendation, due to more complete data on features and functionality.

What would I choose?

Based on the information available, I would choose the vivo V21 5G. The reason for this decision comes down to the completeness of the provided data, which provides me with a clear picture of the V21's capabilities. The provided data for the realme 8 is incomplete and specifies that the phone does not have a standard camera, a selfie camera, a wide angle lens or macro lens, or even a battery.

While the realme 8 boasts a more powerful chipset and higher refresh rate, the incomplete data makes it a riskier proposition. The V21 5G has an excellent set of cameras, which includes a standard camera, selfie camera, wide angle lens, and macro lens. It also has fast charging, a comprehensive set of sensors and connectivity features, a good amount of storage and RAM, and runs on a usable version of android (albeit, older than that of the realme 8). For the sake of reliability and a more complete picture, the V21 5G is the better choice. However, it is important to note that with better and more reliable data, the realme 8 may be the better option in the future.

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.