OnePlus 12 vs Xiaomi Redmi A3x - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 12
OnePlus 12
Oneplus

General

Launch Date December 11, 2023 May 24, 2024
Release Year 2023 2024

Physical

Volume 114.58 cm³ 106.65 cm³
Screen Size to Weight Ratio 3.1 "/g 3.48 "/g
Weight 220 g 193 g
Height 164.3 mm 168.4 mm
Width 75.8 mm 76.3 mm
Thickness 9.2 mm 8.3 mm
Foldable Design No No
Available Colors
  • Flowy Emerald
  • Silky Black
  • Silver (Glacial White)
  • Midnight Black
  • Olive Green
  • Moonlight White (Starry White)
  • Aurora Green (Ocean Green)

Display

Screen Size 6.82 " 6.71 "
Resolution 1440 x 3168 720 x 1650
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 90.8 % 82.9 %
Pixel Density 510 PPI 268 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness 600 nits 500 nits
HBM Brightness 1600 nits N/A
Peak Brightness 4500 nits N/A

Hardware

Battery Capacity per Screen Area 116.10 mAh/in² 111.05 mAh/in²
Battery Density 47.13 mAh/cm³ 46.88 mAh/cm³
Battery Capacity 5400 mAh 5000 mAh
NFC Support Yes No
Chipset Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) Unisoc T603 (22 nm)
CPU Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520) Octa-core 1.8 GHz
GPU Adreno 750 8

Connectivity

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

Software

Operating System Android Android
Initial OS Version 14 14
Maximum OS Version 18 16

Comparison Summary

OnePlus 12 vs. Xiaomi Redmi A3x: A Deep Dive

The smartphone market offers a dizzying array of choices, and deciding between two seemingly similar devices can be challenging. Today, we'll dissect the OnePlus 12 and the Xiaomi Redmi A3x, two phones targeting different market segments, to help you understand which one might be your perfect fit.

1. Specifications Breakdown

FeatureOnePlus 12Xiaomi Redmi A3xReal-World Implications
Design
Dimensions164.3 x 75.8 x 9.2 mm168.4 x 76.3 x 8.3mmOnePlus 12 is slightly smaller, potentially easier to handle; Redmi A3x is thinner.
Weight220g193gRedmi A3x is noticeably lighter, reducing hand fatigue during extended use.
BuildGlass front/back, aluminum frame(assumed)Plastic back (assumed)OnePlus 12 likely offers a more premium feel and better durability. Redmi A3x prioritizes affordability.
Display
Size6.82"6.71"OnePlus 12 offers a slightly larger screen for more immersive content consumption.
TypeLTPO AMOLED, 1B colors, 120HzIPS LCD, 90HzOnePlus 12 boasts superior color accuracy, deeper blacks, and smoother scrolling thanks to AMOLED and higher refresh rate.
Resolution1440 x 3168720 x 1650OnePlus 12's significantly higher resolution delivers sharper text, images, and videos.
Peak Brightness4500 nits500 nits (typical), unknown peakOnePlus 12 will be far more visible in direct sunlight.
Performance
ChipsetSnapdragon 8 Gen 3Unisoc T603OnePlus 12 offers flagship-level performance with significantly faster processing and graphics capabilities.
CPUOcta-core (1x3.3 GHz Cortex-X4 & ...)Octa-core 1.8 GHzOnePlus 12 provides a substantial performance advantage for demanding tasks and multitasking.
GPUAdreno 750Mali-G57 MP1OnePlus 12's GPU provides dramatically better gaming and graphics performance.
RAM16GB4GBOnePlus 12's massive RAM enables seamless multitasking and smooth app switching, even with numerous apps open in the background.
Storage512GB128GBOnePlus 12 offers ample storage for apps, photos, and videos.
Battery
Capacity5400 mAh5000 mAhBoth offer large batteries, but real-world battery life will depend on usage patterns and optimization.
Other
OSAndroid 14Android 14Both run the latest Android version, but long-term software updates might differ.
NFCYesNoOnePlus 12 supports contactless payments and data transfer via NFC.

2. Key Insights

The OnePlus 12 is a flagship smartphone designed for power users and those seeking a premium experience. Its cutting-edge processor, stunning display, and ample RAM deliver top-tier performance and visuals. The Redmi A3x, on the other hand, is a budget-friendly device prioritizing affordability over top-end specifications. Its strengths lie in its lightweight design and large battery, making it suitable for basic tasks and long battery life.

3. User Profiles and Recommendations

  • OnePlus 12: Ideal for gamers, content creators, multitaskers, and anyone who demands the best possible performance and display quality.
  • Redmi A3x: Suitable for budget-conscious users who prioritize essential features like calling, texting, browsing, and light media consumption. Those seeking long battery life on a single charge might also find this appealing.

4. Buying Decision Framework

  1. What is your budget? The OnePlus 12 is significantly more expensive, while the Redmi A3x offers excellent value for its price.
  2. What are your primary smartphone uses? If you need top-tier performance for demanding tasks, the OnePlus 12 is the clear winner. For basic use, the Redmi A3x is sufficient.
  3. How important are display quality and camera capabilities? The OnePlus 12 dramatically outperforms the Redmi A3x in these areas.

My Choice: OnePlus 12

While the Redmi A3x offers excellent value for its price, I would choose the OnePlus 12. As a tech enthusiast and someone who uses their phone for demanding tasks like photo editing, video recording, and gaming, the OnePlus 12's superior performance, stunning display, and future-proof features are essential. The premium design and the inclusion of NFC further solidify its appeal. The higher price is justified by the significant jump in quality and capabilities. The Redmi A3x serves a different market segment entirely, focusing on affordability and basic functionality.

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.