Xiaomi 12X vs vivo V40 - Detailed Phone Comparison

Detailed Comparison

Specification
Xiaomi 12X
Xiaomi 12X
Xiaomi
vivo V40
vivo V40
Vivo

General

Launch Date December 31, 2021 July 3, 2024
Release Year 2021 2024

Physical

Volume 87.52 cm³ 93.59 cm³
Screen Size to Weight Ratio 3.57 "/g 3.57 "/g
Weight 176 g 190 g
Height 152.7 mm 164.2 mm
Width 69.9 mm 75 mm
Thickness 8.2 mm 7.6 mm
Foldable Design No No
Available Colors
  • Blue
  • Purple
  • Gray
  • Moonlight White
  • Stellar Silver (Titanium Grey)
  • Nebula Purple (Lotus Purple)
  • Ganges Blue
  • Sunglow Peach

Display

Screen Size 6.28 " 6.78 "
Resolution 1080 x 2400 1260 x 2800
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.2 % 90.1 %
Pixel Density 419 PPI 453 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1100 nits 4500 nits

Hardware

Battery Capacity per Screen Area 114.10 mAh/in² 119.65 mAh/in²
Battery Density 51.41 mAh/cm³ 58.76 mAh/cm³
Battery Capacity 4500 mAh 5500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) Qualcomm SM7550-AB Snapdragon 7 Gen 3 (4 nm)
CPU Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) Octa-core (1x2.63 GHz Cortex-A715 & 3x2.4 GHz Cortex-A715 & 4x1.8 GHz Cortex-A510)
GPU Adreno 650 Adreno 720

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

Comparison Summary

Okay, let's dive deep into the comparison of the Xiaomi 12X and vivo V40. I'll break down the specs, highlight key differences, and offer some practical advice to help you decide which phone is the better fit for your needs.

1. Specifications Breakdown

Here's a detailed breakdown of the technical specifications, along with an explanation of their real-world implications.

FeatureXiaomi 12Xvivo V40Real-World Implications
Design
Dimensions152.7 × 69.9 × 8.2 mm164.2 × 75 × 7.6 mmThe Xiaomi is more compact, while the Vivo is taller and wider, potentially less pocketable for some. The Vivo is thinner.
Weight176g190gXiaomi 12X is lighter, making it more comfortable for prolonged one-handed use.
Display
Size6.28"6.78"The vivo V40 offers a larger display, better for media consumption and multitasking.
Resolution1080x24001260x2800vivo V40's higher resolution provides sharper text and images.
Pixel Density419 ppi453 ppivivo V40 has slightly more detail per inch than the Xiaomi.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks.
Refresh Rate120Hz120HzBoth deliver smooth scrolling and animations.
Brightness1100 nits4500 nitsThe vivo V40 is significantly brighter, much better for outdoor visibility in direct sunlight.
Performance
ChipsetQualcomm Snapdragon 870 (7 nm)Qualcomm Snapdragon 7 Gen 3 (4 nm)While both are good, the vivo V40’s newer, more efficient chip should offer better power efficiency and performance.
AnTuTu Score815,210855,000vivo V40 edges out the Xiaomi in raw benchmark performance.
GPUAdreno 650Adreno 720The Adreno 720 in the vivo V40 offers improved graphics processing capabilities for gaming and demanding apps.
Camera
Standard Camera50MP (f/1.88, 1/1.56", Sony IMX766)50MP (f/1.88, 1/1.56", Samsung GNJ)Both have capable main sensors; image quality will depend more on tuning than the specs.
Selfie Camera32MP (f/2.45, 1/3", OV32B)50MP (f/2.0, 1/2.76", S5KJN1)vivo V40’s selfie cam with higher resolution, wider aperture, and larger sensor should capture better selfies and perform better in low light.
Wide Angle Lens13MP (f/2.4, 1/3.06", OV13B10)50MP (f/2.4)vivo V40 offers a significantly higher resolution wide angle lens.
Macro Lens5MPNot availableThe Xiaomi 12X has a dedicated macro camera for close-up shots.
Video Recording8K@24fps, 4K@60fps, EIS4K@30fps, OIS/EISThe Xiaomi 12X supports higher resolution 8K video recording. vivo V40 has OIS (Optical Image Stabilization) along with EIS (Electronic Image Stabilization).
FeaturesTriple camera, 8K Video, Ultra stable video, continuous autofocus, manual focus, RAWDual camera, Contrast detection autofocusXiaomi has more features. vivo has contrast detection autofocus.
Battery Life
Capacity4500mAh5500mAhThe vivo V40 has a larger battery and should last significantly longer on a single charge.
Charging67W80WThe vivo V40 charges faster than the Xiaomi.
Other
SoftwareAndroid 11Android 14vivo V40 comes with a much more recent Android OS out of the box.
SIMDual SIMDual SIM, eSIMThe vivo V40 has the advantage of offering eSIM support in addition to physical SIM slots.
Storage128/256 GB256/512 GBvivo V40 offers much more internal storage capacity.
RAM8/12 GB12GBBoth can handle multitasking, but the V40 is only available in the 12GB config, offering more RAM.
AudioDolby Atmos, Hi-Res, Stereo speakersBasic featuresXiaomi offers better audio features.
BuildGorilla Glass VictusUnknownXiaomi screen has superior protection.
GPSGPS (L1+L5), GLONASS (L1), BeiDou (B1/B2), NavIC, QZSS (L1/L5)GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, BeiDou (B1)Xiaomi has more accurate GPS. vivo has Galileo.
Bluetooth5.1 LE, APT-X, LDAC5.4 LE, APT-X, LDAC, EDRvivo V40 has newer Bluetooth.
SensorsUltrasonic ProximityProximityXiaomi has ultrasonic proximity and vivo has a standard proximity sensor.

2. Key Insights

  • vivo V40: The Modern Powerhouse
    • Bigger and Brighter Display: The larger, higher-resolution, and much brighter display is a clear win for media consumption and outdoor visibility.
    • Superior Performance: The newer Snapdragon 7 Gen 3 chipset paired with 12GB of RAM offers better performance, especially in graphics, and more power efficiency.
    • Enhanced Battery Life: The larger 5500mAh battery and faster 80W charging will keep you going much longer.
    • Updated Software: Comes with Android 14 out of the box which gives you a more modern feel and more up to date security features.
    • eSIM support: Offers eSIM support, making digital carrier switching easier.
  • Xiaomi 12X: The Compact Performer
    • More Compact Design: The smaller, lighter design makes it more pocketable and comfortable for one-handed use.
    • 8K Video Recording: Offers 8K video recording for those who need the highest possible resolution.
    • Better Audio: Boasts Dolby Atmos, Hi-Res Audio, and stereo speakers for superior sound.
    • Macro Lens: Includes a dedicated macro lens for detailed close-up shots.
    • Superior GPS: Xiaomi has more accurate GPS with more GPS systems supported.
    • Screen Protection: Gorilla Glass Victus protection.

3. User Profiles and Recommendations

  • For the Power User (vivo V40):
    • If you prioritize a large, bright display, top-tier performance, long battery life, and modern features like eSIM support, the vivo V40 is the clear winner.
    • Ideal for gamers, media enthusiasts, and anyone who relies heavily on their phone throughout the day.
  • For the Compact and Feature-Focused User (Xiaomi 12X):
    • If you value a compact phone, high-quality audio, 8K video, and macro photography, the Xiaomi 12X is a great option.
    • Suitable for users who prefer a smaller, more pocketable phone with great all-around performance for everyday tasks and multimedia consumption.

4. Buying Decision Framework

Here are three questions to help you decide:

  1. What's more important to you: Display size or phone size?
    • Bigger Display (vivo V40): If screen real estate is a priority and you don’t mind a larger phone, go for the vivo V40.
    • Compact Phone (Xiaomi 12X): If you want a more pocketable device, the Xiaomi 12X is better suited.
  2. How much do you prioritize battery life and charging?
    • Long Battery Life (vivo V40): If you frequently find yourself running low on battery, the vivo V40’s larger battery and faster charging will be a huge benefit.
    • Decent Battery (Xiaomi 12X): If decent battery life and quick top-ups are enough, the Xiaomi 12X is fine.
  3. Do you need high end video quality or better quality audio?
    • Better video (Xiaomi 12X): If you prioritize video, and specifically 8k video, Xiaomi 12X is the best for you.
    • Better audio (Xiaomi 12X): If you prioritize audio and need Dolby atmos and high res audio, Xiaomi 12X is the best for you.

Final Recommendation

What I would Choose:

Personally, I would lean towards the vivo V40. While the Xiaomi 12X has some compelling features like 8K video and a more compact design, the vivo V40 offers a more modern and well-rounded experience that aligns better with my priorities. The significantly brighter display, the more up-to-date chipset, longer battery life, faster charging, and updated software make it a more future-proof device. The larger screen is also great for my media consumption and the overall increase in storage is very important.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.