vivo V21 5G vs Realme 12x - Detailed Phone Comparison

Detailed Comparison

Specification
Realme 12x
Realme 12x
Realme

General

Launch Date May 6, 2021 April 7, 2024
Release Year 2021 2024

Physical

Volume 86.15 cm³ 99.56 cm³
Screen Size to Weight Ratio 3.66 "/g 3.51 "/g
Weight 176 g 190 g
Height 159.7 mm 165.6 mm
Width 73.9 mm 76.1 mm
Thickness 7.3 mm 7.9 mm
Foldable Design No No
Available Colors
  • Arctic White
  • Dusk Blue
  • Sunset Dazzle
  • Glowing Black
  • Feather Green

Display

Screen Size 6.44 " 6.67 "
Resolution 1080 x 2400 720 x 1604
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.8 % 85.1 %
Pixel Density 409 PPI 264 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 500 nits N/A
HBM Brightness N/A 625 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 96.45 mAh/in² 112.39 mAh/in²
Battery Density 46.43 mAh/cm³ 50.22 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G57 MC3 Mali-G57 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 14
Maximum OS Version

Comparison Summary

1. Specifications Comparison

Featurevivo V21 5GRealme 12xPractical Impact
Design
Launch Date2021-05-062024-04-07Realme 12x is significantly newer, likely with updated features and software.
Dimensions159.7 × 73.9 × 7.3 mm165.6 × 76.1 × 7.9 mmRealme 12x is larger and slightly thicker, which may impact one-handed use.
Weight176g190gvivo V21 5G is lighter, making it more comfortable for extended use.
Display
Size6.44"6.67"Realme 12x offers a slightly larger screen for more immersive media consumption.
Resolution1080x2400720x1604vivo V21 5G has a much sharper display, providing clearer text and images.
PPI409264vivo V21 5G offers a noticeably clearer and more detailed viewing experience.
TechnologyAMOLEDIPS LCDvivo V21 5G has better contrast, deeper blacks, more vibrant colors and superior power efficiency when using dark mode.
Refresh Rate90Hz120HzRealme 12x has slightly smoother scrolling and animations.
Brightness0 nits0 nitsPeak brightness is unknown, which could significantly impact outdoor visibility.
Performance
ChipsetMediatek Dimensity 800U (7 nm)Mediatek Dimensity 6100+ (6 nm)Realme 12x has a newer and more efficient chip offering slightly better performance.
AnTuTu Score343,150442,599Realme 12x offers notably better overall performance and smoother app loading.
GPUMali-G57 MC3Mali-G57 MC2vivo V21 5G has a slightly more powerful GPU, which could benefit gaming performance.
Battery
Capacity4000mAh5000mAhRealme 12x has a significantly larger battery, potentially offering much longer battery life.
Charging33W Fast Charging15W Fast Chargingvivo V21 5G charges faster, reducing downtime.
Camera
Rear Standard64MP f/1.7950MP f/1.8vivo V21 5G has a higher resolution, potentially capturing more detailed images. Both have good apertures but the V21 is slightly wider.
Selfie Camera44MP f/2.08MP f/2.1vivo V21 5G has a much higher resolution selfie camera with better aperture, suitable for high-quality selfies.
Wide Angle Lens8MP f/2.2Nonevivo V21 5G offers an additional wide-angle lens for versatile photography.
Portrait LensNone2MP f/2.4Realme 12x has a dedicated depth sensor for improved portrait mode.
Macro Lens2MP f/2.4Nonevivo V21 5G has a dedicated macro lens for close-up photography.
Video4K@30fps, 1080p@60fps w/OIS1080p@30fpsvivo V21 5G offers higher resolution video recording with OIS for stability.
Video StabilizationYes (OIS)Novivo V21 5G has Optical Image Stabilization (OIS) for smoother videos.
Software
OSAndroid 11Android 14Realme 12x comes with a much newer Android version, offering enhanced features and security.
Connectivity
Wi-Fi802.11ac802.11acBoth support similar Wi-Fi standards.
Bluetooth5.1 LE5.2 LERealme 12x has a newer Bluetooth version.
Storage
Internal128/256GB256/512GBRealme 12x offers greater internal storage options.
RAM8GB12GBRealme 12x has more RAM, allowing better multitasking and app performance.
ExpandableNoNoNeither phone offers expandable storage.
Audio
QualityBasicHi-Res, Stereo SpeakersRealme 12x offers superior audio quality with stereo speakers, enhancing multimedia experience.
Security
Fingerprint SensorBasicSide-mountedRealme 12x has a more modern and convenient side-mounted fingerprint sensor.
Sensors
SensorsAccelerometer, Compass, Gyroscope, Proximity, FingerprintAccelerometer, Compass, Gyroscope, Proximity, Fingerprint, MagnetometerRealme 12x includes a magnetometer, which is useful for certain apps and functions.

2. Key Differences Analysis

vivo V21 5G Advantages:

  • Superior Display: AMOLED screen with significantly higher resolution and pixel density provides a much sharper and more vibrant visual experience.
  • Better Selfie Camera: High-resolution front camera with wider aperture captures more detailed and brighter selfies.
  • Advanced Camera System: Includes a wide-angle lens, macro lens, and Optical Image Stabilization (OIS) for better photos and videos in diverse scenarios.
  • Faster Charging: 33W fast charging reduces charging time, increasing usability.
  • 4K Video Recording: Supports higher video resolution for better video quality.

Realme 12x Advantages:

  • Newer OS: Comes with Android 14, providing a more up-to-date experience, and potentially better security.
  • Larger Battery: Significantly larger battery capacity provides longer battery life, reducing the need to charge frequently.
  • Improved Performance: Newer chipset and higher AnTuTu score indicate better overall performance for daily tasks and gaming.
  • More RAM and Storage: Offers more RAM and storage options for smoother multitasking and more app/media storage.
  • Superior Audio Quality: Features Hi-Res Audio and stereo speakers, providing a better multimedia experience.
  • Side-mounted fingerprint sensor: Offers more modern and convenient biometric security.

Trade-offs:

  • vivo V21 5G: While it offers a better display and camera setup, it is an older model with an older OS, a smaller battery, slower charging and less RAM and storage.
  • Realme 12x: While it has a more recent OS and improved performance, it has a lower resolution and LCD screen, a less capable camera system (specifically the front camera), and slower charging speeds.

3. User Profiles & Recommendations

Ideal User for vivo V21 5G:

  • Photography Enthusiasts: Users who prioritize camera quality, especially for selfies, and like to explore diverse photography options (wide-angle, macro, stabilized video).
  • Media Consumers: Users who value a sharp and vibrant display for watching videos, browsing photos, and reading content.
  • Users needing fast charging: People who require their phone to be charged quickly between uses.

Use Cases for vivo V21 5G:

  • Taking high-quality photos and videos on the go
  • Enjoying vibrant and detailed content on a sharp display
  • Fast charging between frequent short usage sessions.

Ideal User for Realme 12x:

  • Gamers and Heavy Users: Users who need more processing power, RAM, and battery life for demanding apps and extended usage.
  • Multimedia Consumers: Users who value good audio quality with stereo speakers, and an immersive experience.
  • Budget-Conscious Buyers: Users who prioritize a newer model with solid performance and good battery life within a limited budget.

Use Cases for Realme 12x:

  • Playing graphics-intensive games
  • Long periods of streaming music/video
  • Running demanding apps for productivity
  • Multi-tasking efficiently between apps.

4. Decision Framework

Key Questions for Buyers:

  1. What is more important to me: display quality, camera versatility, or battery life and performance?
  2. Do I need the latest software, or am I fine with an older operating system?
  3. Do I prefer sharper visuals and a more versatile camera, or longer battery life, faster performance and superior audio?

Scenario-Based Recommendations:

  • Scenario 1: Photography Focused: If capturing high-quality selfies and videos is your priority and you value a sharp display, the vivo V21 5G is the better choice.
  • Scenario 2: Performance and Battery Life Focused: If you need longer battery life, smoother performance, more RAM/storage, and a more up-to-date OS, the Realme 12x is the better choice.
  • Scenario 3: Balanced Use: If you want a balance of both worlds it is necessary to consider the specific trade-offs and focus on which areas are more important to your specific needs.

Personal Choice

If I had to choose between these two phones, I would personally choose the Realme 12x. My reasoning is as follows:

While the vivo V21 5G has a superior display and a better front camera, the Realme 12x offers a more compelling overall package for my usage. I prioritize performance and battery life since I use my phone for a variety of tasks, including demanding apps and gaming. The Realme 12x has a more efficient processor, more RAM, a significantly larger battery, and a more up-to-date operating system. Additionally, the side-mounted fingerprint sensor and better audio quality are things that improve daily use for me. The slightly lower screen resolution and IPS LCD are not dealbreakers, while the improved processing power, battery and software are more important to me. I tend to use my phone for longer sessions and therefore value battery life and overall performance over a slightly better screen and camera.

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.