Xiaomi Redmi 9C vs vivo iQOO 12 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date August 12, 2020 November 14, 2023
Release Year 2020 2023

Physical

Volume 114.28 cm³ 100.33 cm³
Screen Size to Weight Ratio 3.33 "/g 3.42 "/g
Weight 196 g 198.5 g
Height 164.9 mm 163.2 mm
Width 77 mm 75.9 mm
Thickness 9 mm 8.1 mm
Foldable Design No No
Available Colors
  • Midnight Gray
  • Sunrise Orange
  • Twilight Blue
  • Black
  • Red
  • White (BMW M branding)

Display

Screen Size 6.53 " 6.78 "
Resolution 720 x 1600 1260 x 2800
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.1 % 89.6 %
Pixel Density 269 PPI 453 PPI
Refresh Rate N/A 144 Hz
Typical Brightness 400 nits N/A
HBM Brightness N/A 1400 nits
Peak Brightness N/A 3000 nits

Hardware

Battery Capacity per Screen Area 117.26 mAh/in² 108.77 mAh/in²
Battery Density 43.75 mAh/cm³ 49.83 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6765G Helio G35 (12 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU PowerVR GE8320 Adreno 750

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 16

Comparison Summary

1. Specifications Comparison

Design

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
Dimensions164.9 × 77 × 9 mm163.2 × 75.9 × 8.1 mmRedmi 9C is slightly larger and thicker, potentially less comfortable for one-handed use. iQOO 12 is more pocketable.
Weight196g198.5gVirtually identical weight. Minimal difference in hand.
Build Quality (Protection)UnknownUnknownCannot compare durability or scratch resistance.

Display

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
Size6.53"6.78"iQOO 12 offers a slightly larger viewing area, better for media consumption and gaming.
Resolution720x16001260x2800iQOO 12 has a much sharper display. Text and images will appear significantly clearer.
PPI269453iQOO 12's higher pixel density results in a noticeably sharper and more detailed image.
TechnologyIPS LCDAMOLEDiQOO 12 offers superior contrast, deeper blacks, and more vibrant colors. Better for HDR content and overall viewing experience.
Refresh Rate60Hz144HziQOO 12 provides much smoother scrolling, animations, and gaming experience.
Brightness0 nits3000 nitsiQOO 12 is drastically more visible in bright sunlight. The Redmi 9C's brightness is missing, making it hard to evaluate its outdoor performance.

Performance

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
ChipsetMediatek MT6765G Helio G35 (12 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)iQOO 12 is significantly faster and more responsive. It handles demanding apps, multitasking, and gaming much better.
AnTuTu Score110,4902,020,000iQOO 12 offers vastly superior performance, ensuring a smoother and lag-free experience for years to come.
GPUPowerVR GE8320 (IMG PowerVR GE8320)Adreno 750 (Adreno 750)iQOO 12 delivers much better graphics performance, enabling smooth gameplay at higher settings.
RAM2 GB or 3 GB or 4 GB12 GB or 16 GBiQOO 12 can handle many more apps running in the background without slowing down.

Camera

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
Main Camera13MP, f/2.250MP, f/1.69, 1/1.3", Omnivision OV50H, 1.20 µmiQOO 12 captures significantly more detailed photos, especially in low light, due to its larger sensor, wider aperture, and higher resolution.
Selfie Camera5MP, f/2.216MP, f/2.45, 1/3.1", Samsung S5K3P9, 1.00 µmiQOO 12 takes higher-resolution and likely better-quality selfies.
Telephoto LensN/A64MP, f/2.6, 1/2", Omnivision OV64B, 0.70 µmiQOO 12 allows for optical zoom, enabling clearer photos of distant subjects without significant quality loss.
Portrait Mode (Depth)2MP, f/2.4N/ARedmi 9C has a dedicated depth sensor, potentially aiding in portrait mode effects, but the quality will be limited by the low resolution.
Macro Lens2MP, f/2.4N/ARedmi 9C can take close-up photos of small objects, though image quality might be limited.
Wide Angle + MacroN/A50MP, f/2.0, 1/2.76", Samsung S5KJN1, 0.64 µmiQOO 12 offers ultra-wide-angle shots and macro capabilities, providing greater versatility.
Video Recording1080p@30fps8K@30fps, 4K@60fps, 1080p@240fpsiQOO 12 supports much higher resolution video recording with stabilization, resulting in smoother and more professional-looking videos.

Battery

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
Capacity5000mAh5000mAhSimilar battery life under comparable usage conditions.
Charging10W120WiQOO 12 charges much faster, significantly reducing downtime.

Storage

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
Internal Storage32 GB / 64 GB / 128 GB256 GB / 512 GB / 1024 GBiQOO 12 offers significantly more storage for apps, photos, videos, and files.
RAM2 GB / 3 GB / 4 GB12 GB / 16 GBiQOO 12 offers significantly more RAM, allowing more applications to run smoothly in the background.
Expandable StorageNoNoNeither phone supports expandable storage, making the internal storage capacity crucial.

Connectivity

FeatureXiaomi Redmi 9Cvivo iQOO 12Practical Impact
WiFi802.11b/g/n802.11a/b/g/n/ac/ax/beiQOO 12 supports newer, faster WiFi standards, resulting in faster download/upload speeds and more reliable connections.
Bluetooth5.05.4iQOO 12 has newer Bluetooth, offering potential improvements in range, speed, and power efficiency.
GPSGPS, A-GPS, GLONASS, BeidouA-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), QZSS (L1 + L5)iQOO 12 has more satellite support for more accurate location tracking.

2. Key Differences Analysis

Xiaomi Redmi 9C Advantages:

  • Potentially lower price: Typically, phones with significantly lower specifications are more affordable. Practical Implication: More accessible to budget-conscious users.
  • Magnetometer Sensor: Has a magnetometer sensor. Practical Implication: Could be used as a compass.
  • Ultrasonic Proximity Virtual Sensor: Has an ultrasonic proximity virtual sensor. Practical Implication: Could have a better screen to body ratio.
  • Dedicated Macro Lens and Depth Sensor: The Redmi 9C includes dedicated 2MP Macro and Depth sensors. Practical Implication: While low resolution, these offer specialized photo modes not directly replicated in the iQOO 12.

vivo iQOO 12 Advantages:

  • Significantly superior performance: Latest Snapdragon chipset offers much faster processing and graphics. Practical Implication: Smooth multitasking, responsive apps, and high-end gaming.
  • Much better display: Higher resolution, AMOLED technology, and higher refresh rate provide a vastly superior viewing experience. Practical Implication: More immersive media consumption, smoother animations, and better outdoor visibility.
  • Much better camera system: Higher resolution sensors, wider apertures, and additional lenses offer vastly improved photo and video quality. Practical Implication: Captures sharper, more detailed images and videos in various conditions. Telephoto lens enables optical zoom.
  • Faster charging: 120W charging significantly reduces charging time. Practical Implication: Convenient and less downtime.
  • More RAM and storage: Provides ample space for apps, files, and smooth multitasking. Practical Implication: Future-proofs the device and accommodates large media libraries.
  • Advanced connectivity: Newer WiFi and Bluetooth standards for faster and more reliable connections. Practical Implication: Faster downloads, smoother streaming, and improved wireless audio.

Trade-offs:

  • Price: The iQOO 12 will likely be significantly more expensive than the Redmi 9C.
  • Missing Specialized Camera Sensors: The iQOO 12 lacks the dedicated macro and depth sensors of the Redmi 9C.

3. User Profiles & Recommendations

Xiaomi Redmi 9C:

  • Ideal User: Budget-conscious users who need a basic smartphone for calls, texts, and light social media use. Users who value specific camera modes over all-around camera quality.
  • Use Cases:
    • First smartphone for children or elderly individuals.
    • Backup phone for emergencies.
    • Users who need a basic device and prioritize affordability above all else.
    • Users who need a compass for hiking or camping.

vivo iQOO 12:

  • Ideal User: Performance enthusiasts, gamers, photographers, and anyone who wants a premium smartphone experience.
  • Use Cases:
    • Mobile gaming at high settings.
    • Capturing high-quality photos and videos.
    • Multitasking with demanding apps.
    • Media consumption (streaming, movies).
    • Professional use requiring fast processing and large storage.

4. Decision Framework

Here are three key questions a buyer should consider:

  1. What is my budget? The price difference between these phones will likely be substantial.
  2. What are my primary use cases? Do you need a phone for basic communication or demanding tasks?
  3. How important are camera quality and performance? Do you prioritize high-quality photos/videos and smooth performance, or are basic features sufficient?

Scenario-Based Recommendations:

  • Scenario 1: Tight budget, basic needs: Choose the Redmi 9C.
  • Scenario 2: Moderate budget, need decent performance: Consider other phones in a similar budget range to the iQOO 12.
  • Scenario 3: Performance and camera are top priorities: Choose the iQOO 12.
  • Scenario 4: Need to maximize battery life: Consider the Redmi 9C.

My Choice

If I were choosing between these two phones, I would pick the vivo iQOO 12. While it would be significantly more expensive, the performance jump, superior display, and vastly improved camera system are well worth the investment. The faster charging is also a huge convenience. As someone who uses their phone for everything from work to gaming to photography, the iQOO 12 offers a much better overall user experience and will remain relevant for a longer period of time. The lack of expandable storage isn't a problem since the phone has 256 GB or more.

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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