vivo V21 5G vs OnePlus 12 - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 12
OnePlus 12
Oneplus

General

Launch Date May 6, 2021 December 11, 2023
Release Year 2021 2023

Physical

Volume 86.15 cm³ 114.58 cm³
Screen Size to Weight Ratio 3.66 "/g 3.1 "/g
Weight 176 g 220 g
Height 159.7 mm 164.3 mm
Width 73.9 mm 75.8 mm
Thickness 7.3 mm 9.2 mm
Foldable Design No No
Available Colors
  • Arctic White
  • Dusk Blue
  • Sunset Dazzle
  • Flowy Emerald
  • Silky Black
  • Silver (Glacial White)

Display

Screen Size 6.44 " 6.82 "
Resolution 1080 x 2400 1440 x 3168
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.8 % 90.8 %
Pixel Density 409 PPI 510 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 500 nits 600 nits
HBM Brightness N/A 1600 nits
Peak Brightness N/A 4500 nits

Hardware

Battery Capacity per Screen Area 96.45 mAh/in² 116.10 mAh/in²
Battery Density 46.43 mAh/cm³ 47.13 mAh/cm³
Battery Capacity 4000 mAh 5400 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU Mali-G57 MC3 Adreno 750

Connectivity

USB Version 2.0 3.2
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C 3.2, OTG

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 18

Comparison Summary

Smartphone Comparison: vivo V21 5G vs. OnePlus 12

1. Specifications Comparison

Design

Featurevivo V21 5GOnePlus 12Practical Impact
Dimensions159.7 × 73.9 × 7.3 mm164.3 × 75.8 × 9.2 mmOnePlus 12 is noticeably larger and thicker, impacting pocketability and one-handed use. vivo V21 5G is more compact.
Weight176g220gvivo V21 5G is significantly lighter, making it more comfortable to hold for longer periods. OnePlus 12 feels more substantial but less convenient for extended use.
Build MaterialUnknownCorning Gorilla Glass Victus 2 screen protectionOnePlus 12 has superior screen protection.

Display

Featurevivo V21 5GOnePlus 12Practical Impact
Size6.44"6.82"OnePlus 12 has a larger display, providing a more immersive experience for media consumption and gaming.
Resolution1080x24001440x3168OnePlus 12 offers significantly sharper visuals due to its higher resolution, resulting in a clearer display for text and images.
Pixel Density (PPI)409510OnePlus 12 provides noticeably sharper image quality, making text and fine details look clearer.
TechnologyAMOLEDAMOLEDBoth phones use AMOLED technology which offers vibrant colors and deep blacks, but other display characteristics can still be different.
Refresh Rate90Hz120HzOnePlus 12 has a smoother scrolling and animation experience.
Brightness0 nits4500 nitsOnePlus 12 offers vastly superior outdoor visibility and overall screen brightness. The Vivo V21 brightness value is missing, and is not something possible to calculate and thus not available.

Performance

Featurevivo V21 5GOnePlus 12Practical Impact
ChipsetMediatek Dimensity 800U (7 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)OnePlus 12 has a significantly faster and more efficient processor, leading to better app performance, gaming capabilities, and overall responsiveness.
AnTuTu Score343,1502,110,808OnePlus 12 demonstrates vastly superior performance in benchmarks, indicating substantial real-world speed differences.
GPUMali-G57 MC3Adreno 750OnePlus 12 has a significantly more powerful GPU for smoother graphics in games and demanding applications.
RAM8GB12GB/16GB/24GBOnePlus 12 has more RAM and the highest configuration offers a better experience for multitasking and demanding tasks.

Camera

Featurevivo V21 5GOnePlus 12Practical Impact
Main Camera Resolution64MP (f/1.79, 0.80µm)50MP (f/1.6, 1/1.43", 1.12µm, Sony LYTIA-T808)vivo V21 5G has a higher megapixel count but OnePlus 12 has a larger sensor size and wider aperture, which often result in better low-light performance and image quality.
Telephoto/Portrait CameraNone64MP (f/2.6, 1/2", 0.70µm, Omnivision OV64B)OnePlus 12 has a dedicated telephoto lens for enhanced zoom capabilities and portrait photography.
Selfie Camera Resolution44MP (f/2.0, 1/2.65", 0.70µm, Samsung S5KGH1)32MP (f/2.4, 1/2.74", 0.80µm, Sony IMX615)vivo V21 5G has a higher megapixel count and a wider aperture for selfie capture.
Wide Angle Lens8MP (f/2.2)Nonevivo V21 5G offers a dedicated ultrawide lens for wide landscape shots, though the sensor details and quality are not known.
Macro Lens2MP (f/2.4)Nonevivo V21 5G has a dedicated macro lens for detailed close-up shots, although the image quality is not likely to be exceptional.
Wide Angle + Macro CameraNone48MP (f/2.2, 1/2", 0.80µm, Sony IMX581)OnePlus 12 features a combined ultrawide and macro lens, offering versatility in capturing different perspectives.
Video RecordingUp to 4K@30fps with OISUp to 8K@24fps with HDR, EIS, and various frame ratesOnePlus 12 offers a vastly more robust video recording suite, including higher resolution and frame rates.
Video Slow-motion120fps960fpsOnePlus 12 offers much higher quality slow-motion video recording, capable of capturing fast action details more accurately.
Camera Features4K Video, Digital zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Front FlashFlicker sensor, Noise reduction, 4K Video, 8K Video, Digital zoom, Optical zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Continuous autofocus, Manual focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Night ModeOnePlus 12 is equipped with more advanced features, such as flicker sensor, noise reduction, 8K video recording, optical zoom, continuous autofocus, manual focus, and night mode, which enhance its overall camera capabilities. The V21 has a front flash.

Battery

Featurevivo V21 5GOnePlus 12Practical Impact
Capacity4000mAh5400mAhOnePlus 12 has a significantly larger battery, potentially providing much better battery life for all-day usage.
Charging33W fast charging100W fast charging, 50W wirelessOnePlus 12 charges much faster, and offers wireless charging capabilities making it more convenient for a quick charge.
FeaturesNon-removableNon-removable, Reverse charging, 50W wireless fast chargingOnePlus 12 has additional features such as reverse charging and wireless charging.

Software & Connectivity

Featurevivo V21 5GOnePlus 12Practical Impact
OSAndroid 11Android 14OnePlus 12 has a newer OS version, offering the latest features and security updates.
WiFi802.11a/b/g/n/ac802.11a/b/g/n/ac/ax/beOnePlus 12 supports WiFi 7, which has the latest and fastest standards, resulting in faster, more reliable connections.
Bluetooth5.1 LE5.4 LEOnePlus 12 offers the newer standard which provides better connectivity and lower energy use.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)OnePlus 12 offers more satellite options, leading to greater accuracy in navigation.
SIMDual SIM (Nano)Dual SIM (Nano/eSIM)OnePlus 12 has the option to use an eSIM for dual sim usage.

Storage

Featurevivo V21 5GOnePlus 12Practical Impact
Internal Storage128GB / 256GB256GB / 512GB / 1024GBOnePlus 12 offers more storage options, catering to users with extensive media files and app usage.
RAM8 GB12GB / 16GB / 24GBOnePlus 12 offers more RAM options which makes for better performance for heavy users.
Expandable StorageNoNoNeither phone has the option to use an SD card to expand the storage space.

Audio & Security

Featurevivo V21 5GOnePlus 12Practical Impact
Audio QualityBasicDolby Atmos, Noise cancellation microphone, Stereo SpeakersOnePlus 12 offers more audio features and should provide a more immersive experience.
SecurityBasic fingerprint sensorBasic fingerprint sensorBoth phones have similar fingerprint sensor technology.

Sensors

Featurevivo V21 5GOnePlus 12Practical Impact
SensorsFingerprint, Proximity, Accelerometer, Compass, GyroscopeFingerprint, Proximity, Accelerometer, Gyroscope, Gravity, Hall, Geomagnetic, RGBOnePlus 12 provides more comprehensive sensor capabilities for advanced features and applications.

2. Key Differences Analysis

vivo V21 5G Advantages:

  • Lighter and more compact design: Easier to handle and carry, better for users with smaller hands.
  • Higher resolution front camera: Potentially better selfies in terms of pixel count and low-light with wider aperture, though this is not the only factor that effects photo quality.
  • Dedicated wide angle and macro lenses: Offers more flexibility in camera, though the sensors are not known to be of great quality.
  • Front Flash: Has a front facing flash for better quality selfies in very dark environments.

OnePlus 12 Advantages:

  • Significantly more powerful processor and GPU: Superior performance for demanding tasks, gaming, and future-proofing.
  • Much better display quality: Higher resolution, pixel density, brightness, and refresh rate leading to significantly better image quality.
  • Superior Camera System: Better main, telephoto, and video quality.
  • Larger battery capacity and much faster charging: Longer battery life and faster recharge times.
  • Newer OS and connectivity options: Supports the latest OS and faster WiFi/Bluetooth for better functionality.
  • More storage and RAM options: Greater choice and the higher tiers make for a better performance.
  • Superior Audio: Stereo speakers, Dolby Atmos and noise cancellation for a better audio experience.
  • More comprehensive sensor package: Offers more functionality for applications that make use of sensors.

Trade-offs:

  • The vivo V21 5G sacrifices performance, display quality, battery life, and advanced features for its more compact design and slightly better selfie camera on paper.
  • The OnePlus 12 is larger, heavier, and more expensive but provides a significantly superior overall experience in most key areas.

3. User Profiles & Recommendations

Ideal Users for vivo V21 5G:

  • Users who prioritize a lightweight and compact device for ease of handling and portability.
  • Users who primarily focus on selfie quality and utilize the front flash.
  • Budget-conscious users seeking a decent everyday phone.
  • Users who do not play intensive games, or use high intensity applications that require powerful hardware.

Specific Use Cases for vivo V21 5G:

  • Casual social media browsing and communication
  • Everyday photography and light video recording
  • Basic gaming and entertainment
  • Users who need a simple, reliable device

Ideal Users for OnePlus 12:

  • Users who prioritize top-tier performance for gaming, multitasking, and demanding applications.
  • Users who want a high quality display for media consumption and detailed visuals.
  • Users who need a reliable all-day battery and fast charging.
  • Users who want an excellent camera system with versatile features, and high quality video recording.
  • Users who require the latest connectivity standards and future proofing.
  • Users who are prepared to pay the extra costs for the best features.

Specific Use Cases for OnePlus 12:

  • High-end gaming
  • Professional photography and videography
  • Heavy multitasking
  • Media creators and consumers
  • Users who need to use high end applications that require strong hardware.

Price-to-Value Ratio:

  • The vivo V21 5G will be much cheaper due to it's age. However it will be a less powerful, less impressive phone overall. The price-to-value of the phone will depend on how cheap you can find it.
  • The OnePlus 12 is a much more expensive phone, however the additional features and power may be worth the extra money to some buyers.

4. Decision Framework

Key Questions for Buyers:

  1. How important is device size and weight?
    • If portability and one-handed use are critical, the vivo V21 5G may be a better fit.
  2. What is the primary use case for the phone?
    • For gaming, content creation, and demanding tasks, the OnePlus 12 is the clear choice.
  3. What is your budget?
    • If you want a premium device with the best features regardless of price, the OnePlus 12 is the better option. If you are very budget conscious the Vivo V21 5G may be a better fit.

Scenario-Based Recommendations:

  • Scenario 1: Casual User on a Budget
    • If a user needs a lightweight phone for basic daily tasks, and is looking to save money, the vivo V21 5G may be enough.
  • Scenario 2: Gaming and Performance Enthusiast
    • If gaming, performance and multitasking are a top priority the OnePlus 12 provides the highest quality experience.
  • Scenario 3: Media Consumption & Photography:
    • If you are looking for a good screen and camera the OnePlus 12 is the best option by a wide margin.

My Choice and Explanation

If I had to choose between these two phones, I would choose the OnePlus 12. While the vivo V21 5G has a more compact form factor, the OnePlus 12 offers a much more compelling experience overall. The superior processor, significantly improved display, larger battery with faster charging, advanced camera capabilities, and newer software make it the clear winner for me. While the Vivo has a higher megapixel front camera, the overall camera system of the Oneplus 12 is vastly superior.

As someone who values performance, display quality, and camera capabilities, the trade-offs of the OnePlus 12 are worth it, despite its size and cost. The enhanced audio quality, newer connectivity, and better future-proofing also weigh heavily in its favor. Although the vivo is lighter and more pocketable, the overall experience of the OnePlus 12 makes it the better option and one I would prefer.

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.