vivo V21 5G vs Xiaomi Poco F6 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date May 6, 2021 May 23, 2024
Release Year 2021 2024

Physical

Volume 86.15 cm³ 95.66 cm³
Screen Size to Weight Ratio 3.66 "/g 3.73 "/g
Weight 176 g 179 g
Height 159.7 mm 160.5 mm
Width 73.9 mm 74.5 mm
Thickness 7.3 mm 8 mm
Foldable Design No No
Available Colors
  • Arctic White
  • Dusk Blue
  • Sunset Dazzle
  • Black
  • Green
  • Titanium

Display

Screen Size 6.44 " 6.67 "
Resolution 1080 x 2400 1220 x 2712
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.8 % 89.8 %
Pixel Density 409 PPI 446 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 500 nits 500 nits
HBM Brightness N/A 1200 nits
Peak Brightness N/A 2400 nits

Hardware

Battery Capacity per Screen Area 96.45 mAh/in² 112.39 mAh/in²
Battery Density 46.43 mAh/cm³ 52.27 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Qualcomm SM8635 Snapdragon 8s Gen 3 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (1x3.0 GHz Cortex-X4 & 4x2.8 GHz Cortex-A720 & 3x2.0 GHz Cortex-A520)
GPU Mali-G57 MC3 Adreno 735

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 17

Comparison Summary

1. Specifications Comparison

Featurevivo V21 5GXiaomi Poco F6Practical Impact
Design
Dimensions159.7 × 73.9 × 7.3 mm160.5 × 74.5 × 8 mmPoco F6 is slightly larger and thicker, might feel more substantial in hand.
Weight176g179gNegligible difference, both feel lightweight.
Display
Size6.44"6.67"Poco F6 has a slightly larger screen, better for media consumption and multitasking.
Resolution1080x24001220x2712Poco F6 has noticeably sharper visuals, providing crisper text and images.
PPI409446Poco F6 has a slightly higher pixel density leading to slightly clearer visuals.
TechnologyAMOLEDAMOLEDBoth have vibrant colors and deep blacks, but the Poco F6's higher specs may result in a slightly more refined viewing experience.
Refresh Rate90Hz120HzPoco F6 has smoother scrolling and animations, noticeably better for fast-paced games.
Brightness0 nits2400 nitsPoco F6 is vastly superior in direct sunlight, easily readable outdoors. vivo V21 5G brightness is not available, this is a significant difference.
Performance
ChipsetMediatek Dimensity 800U (7 nm)Qualcomm Snapdragon 8s Gen 3 (4 nm)Poco F6 is significantly faster for all tasks, including gaming, video editing, and multitasking.
AnTuTu Score343,1501,530,662Poco F6 offers massively superior performance and is more future-proof, especially for demanding applications.
GPUMali-G57 MC3 (ARM Mali-G57 MC3)Adreno 735 (Adreno 735)Poco F6 has a much more powerful GPU, providing better graphics for gaming and other graphically intensive tasks.
Battery
Capacity4000mAh5000mAhPoco F6 should offer considerably longer battery life, easily lasting a full day even with heavy use.
Charging33W fast charging, Li-Polymer90W fast charging, Li-IonPoco F6 charges much faster, meaning less downtime waiting for your phone to power up.
Camera
Standard Camera64MP, f/1.79, 0.80µm pixel size50MP, f/1.6, 1/2", Sony IMX882, 0.70µm pixel sizeDespite the lower megapixel count, the Poco F6 has a larger sensor and wider aperture, likely capturing more light and resulting in superior image quality overall. The sensor model is also known, providing further details about potential image quality
Selfie Camera44MP, f/2.0, 1/2.65", Samsung S5KGH1, 0.70µm pixel size20MP, f/2.0, Omnivision OV20B, pixel sizeVivo has higher resolution, but sensor details for Poco F6 are incomplete. The practical impact depends on the photo quality.
Wide Angle Lens8MP, f/2.28MP, f/2.2, 1/2.8", Sony IMX355, 1.14µm pixel sizeBoth have similar wide-angle, but the Poco F6's larger pixel size suggests better low-light performance.
Macro Lens2MP, f/2.4Nonevivo V21 5G has a dedicated macro lens for close-up shots, the Poco F6 does not
Video4K@30fps w/OIS, 1080p@60fps w/OIS4K@60fps w/EIS, 1080p@240fps w/EISPoco F6 has superior video options with EIS across multiple resolutions and framerates as well as high frame rate slow motion.
Software
OSAndroid 11Android 14Poco F6 has a much newer version of Android, leading to better security, features, and overall experience.
Connectivity
WiFi802.11ac802.11ax (WiFi 6)Poco F6 has faster and more reliable WiFi with Wi-Fi 6 support.
Bluetooth5.15.4Poco F6 has a newer Bluetooth version, offering better range and efficiency.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1)Poco F6 has more accurate location tracking.
Storage
Internal Storage128 GB or 256 GB256 GB or 512 GBPoco F6 offers more storage space with higher capacity options.
RAM8 GB8 GB or 12 GBPoco F6 has more RAM option, better for heavy multitasking and demanding games.
Audio
Audio QualityBasic audio featuresDolby Atmos, Hi-Res Audio, Stereo Speakers, 4 microphonesPoco F6 has significantly better audio quality, both for listening to music and for voice calls.
Security
Fingerprint SensorBasic fingerprint sensorBasic fingerprint sensorBoth provide basic biometric security.
Build Quality
Screen ProtectionUnknownCorning Gorilla Glass VictusPoco F6's screen is more resistant to scratches and damage.
Sensors
SensorsBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, GyroscopeBiometric: Fingerprint; Motion: Accelerometer, Compass, Gyroscope; Proximity: Ultrasonic proximity virtualBoth have comprehensive sensors. The Poco F6 uses an ultrasonic proximity sensor which may be more accurate and less prone to malfunction.

2. Key Differences Analysis

Xiaomi Poco F6 Advantages:

  • Significantly superior performance: The Snapdragon 8s Gen 3 chipset offers a massive performance jump, making the Poco F6 much faster for gaming, multitasking, and general use.
  • Much brighter display: The 2400 nits brightness makes the Poco F6 easily visible under direct sunlight, unlike the vivo V21 5G (whose brightness is unavailable), this is a major usability advantage.
  • Larger, higher resolution display: A slightly bigger and sharper screen enhances the viewing experience for media and productivity.
  • Longer battery life and faster charging: The 5000mAh battery combined with 90W charging is a significant advantage, reducing time spent tethered to a charger and providing more reliable all day use.
  • Newer software and connectivity: Android 14 and Wi-Fi 6 support provide better features and better future proofing.
  • Superior audio: Dolby Atmos, Hi-Res Audio, and stereo speakers provide a much more immersive audio experience.
  • Better screen protection: Corning Gorilla Glass Victus provides significantly better protection from damage.
  • Potentially better camera quality: While the Vivo has higher megapixels on the standard and selfie camera, the Poco F6 has better sensors and lens for the main and ultrawide camera, offering the possibility of higher quality pictures.
  • Better Video Features: The ability to record at 4k60 and higher frame rates for slow motion is very advantageous.

vivo V21 5G Advantages:

  • Dedicated Macro Lens: The macro lens is unique to the vivo V21 5G providing additional photographic capability.
  • Higher resolution Selfie Camera: The 44MP front facing camera provides more detail to selfies.
  • Triple Camera: The triple camera setup offers additional flexibility.
  • Front Flash: For better lit selfies.
  • Potentially Lower Price: As it is an older device, the Vivo will be cheaper but the cost of the Poco is unknown so cannot be confirmed.

Trade-offs:

  • The vivo V21 5G sacrifices significant performance, display quality, battery life, and charging speeds for a lower-end chipset, camera system, and overall feature set.

3. User Profiles & Recommendations

Ideal User for Xiaomi Poco F6:

  • Gamers: The powerful processor, high refresh rate display, and great audio make it perfect for mobile gaming.
  • Power Users: Those who need fast performance for multitasking, video editing, and other demanding tasks.
  • Media Consumers: The large, high-resolution display and excellent audio make it ideal for watching videos and listening to music.
  • Outdoor Users: Those who frequently use their phone in bright sunlight will appreciate the high screen brightness.

Specific Use Cases for Xiaomi Poco F6:

  • Playing graphically intensive mobile games with smooth frame rates.
  • Editing high-resolution videos on the go.
  • Consuming media in bright sunlight without visibility issues.
  • Long days where battery life is critical and charging time is limited.
  • Voice recordings and calls in noisy areas, utilizing its quad-microphone setup.

Ideal User for vivo V21 5G:

  • Budget-conscious users: If price is the main concern, the older vivo V21 5G may be an option due to lower cost.
  • Basic Photography: Users that value the macro lens and higher resolution selfie camera.

Specific Use Cases for vivo V21 5G:

  • Basic social media use, such as browsing and light posting.
  • Casual photography using macro lens.
  • Users that prefer an older, smaller phone.

4. Decision Framework

Key Questions for Buyers:

  1. What is your primary use case? (Gaming, media consumption, photography, or basic day-to-day use)
  2. How important is performance? (Do you need a fast phone for demanding tasks, or is basic performance sufficient?)
  3. What is your budget? (Are you looking for the best value, or is cost the most critical factor?)

Scenario-Based Recommendations:

  • For Gamers & Power Users: Choose the Xiaomi Poco F6 for its superior performance, higher refresh rate screen, and excellent audio.
  • For Media Consumers: Choose the Xiaomi Poco F6 for its larger and higher resolution screen, as well as higher brightness for outdoor visibility and superior audio.
  • For Value-Conscious Users: If the price difference is very high, the vivo V21 5G may suffice for basic tasks and general usage. However, be aware of the significant trade-offs in performance, display quality, and battery life.
  • For Photographers: If the macro lens or the front facing flash is a priority, the vivo V21 5G may be preferred.

My Choice

I would choose the Xiaomi Poco F6. The massive performance leap from the Snapdragon 8s Gen 3 is undeniable, making it significantly better for gaming, multitasking, and long-term usability. The much brighter screen is essential for outdoor use, and the larger, higher-resolution display enhances the entire user experience. While the higher megapixel count on the main and front facing camera of the Vivo is an advantage, the other camera features on the Xiaomi (better sensor, better lens) may still produce higher quality photos. Additionally, the longer battery life and significantly faster charging mean less time tethered to a charger and more time using the phone. The inclusion of newer software, Wi-Fi 6, and better audio are also valuable features that significantly improve the experience. Overall, despite the loss of the macro lens the performance and features of the Poco F6 would make it the preferable option.

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.