Oppo Reno6 5G vs Xiaomi Redmi 12 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 June 15, 2023
Release Year 2021 2023

Physical

Volume 85.92 cm³ 105.49 cm³
Screen Size to Weight Ratio 3.53 "/g 3.42 "/g
Weight 182 g 198.5 g
Height 156.8 mm 168.6 mm
Width 72.1 mm 76.3 mm
Thickness 7.6 mm 8.2 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Midnight Black
  • Polar Silver
  • Sky Blue
  • Moonstone Silver

Display

Screen Size 6.43 " 6.79 "
Resolution 1080 x 2400 1080 x 2460
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 88.3 % 85.1 %
Pixel Density 409 PPI 396 PPI
Refresh Rate 90 Hz 90 Hz
Typical Brightness 430 nits N/A
HBM Brightness 600 nits N/A
Peak Brightness 750 nits 550 nits

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 108.45 mAh/in²
Battery Density 50.05 mAh/cm³ 47.4 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Mediatek MT6769H Helio G88 (12 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G52 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 13
Maximum OS Version 12 14

Comparison Summary

Here’s a detailed, user-focused comparison of the Oppo Reno6 5G and Xiaomi Redmi 12, structured to help you decide which phone fits your needs best.


1. Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GXiaomi Redmi 12Real-World Implications
Dimensions156.8 × 72.1 × 7.6 mm168.6 × 76.3 × 8.2 mmReno6 is slimmer and lighter (182g vs. 198.5g), making it more pocket-friendly. Redmi 12 is bulkier but may feel sturdier.
Screen ProtectionGorilla Glass 5UnknownReno6 has better drop resistance. Redmi 12's screen durability is unclear.
Fingerprint SensorBasic under-displaySide-mountedSide-mounted (Redmi 12) is faster, while Reno6's is more modern but may be slower.

Display

FeatureOppo Reno6 5GXiaomi Redmi 12Real-World Implications
Size & Type6.43" AMOLED6.79" IPS LCDAMOLED (Reno6) = deeper blacks, vibrant colors, better battery efficiency. Redmi 12’s bigger screen is better for media but lacks AMOLED quality.
Brightness1100 nits (peak)Unknown (likely ~500 nits)Reno6 is far superior in sunlight visibility. Redmi 12 may struggle outdoors.
Refresh Rate90Hz90HzBoth smooth for scrolling/gaming, but AMOLED makes Reno6’s motion clearer.

Performance

FeatureOppo Reno6 5GXiaomi Redmi 12Real-World Implications
ChipsetDimensity 900 (6nm)Helio G88 (12nm)Reno6’s 3x higher AnTuTu score (815K vs. 249K) means faster app launches, smoother multitasking, and better gaming. Redmi 12 is budget-tier.
RAM Options8GB / 12GB4GB / 6GB / 8GBReno6’s 12GB RAM handles heavy apps/games better. Redmi 12's 4GB variant will lag.

Camera

FeatureOppo Reno6 5GXiaomi Redmi 12Real-World Implications
Main Camera50MP (1/1.56" Sony IMX766)50MP (1/2.76" Samsung)Reno6’s larger sensor captures more light, better low-light shots & detail. Redmi 12’s sensor is smaller, so photos are softer.
Ultra-Wide16MP (Sony IMX481)8MP (Sony IMX355)Reno6’s 2x resolution and better sensor for wider, sharper shots.
Selfie Camera32MP (Sony IMX615)8MP (basic)Reno6’s 32MP selfies are vastly superior for social media.
Video4K@30fps, OIS1080p@30fps, no OISReno6 is better for vlogging with 4K + stabilization. Redmi 12 is limited.

Battery & Charging

FeatureOppo Reno6 5GXiaomi Redmi 12Real-World Implications
Capacity4500mAh5000mAhRedmi 12 lasts longer on a charge (11% bigger battery).
Charging Speed65W (0-100% in ~30 mins)18W (slow)Reno6 charges 3.5x faster—huge for busy users.
ExtrasNo reverse charging9W reverse chargingRedmi 12 can charge other devices (handy in a pinch).

Software & Extras

FeatureOppo Reno6 5GXiaomi Redmi 12Real-World Implications
OSAndroid 11 (upgradable)Android 13 (newer)Redmi 12 has a newer OS out of the box, but Reno6’s hardware is stronger.
WiFi/BluetoothWiFi 6, BT 5.2 (LDAC)WiFi 5, BT 5.3Reno6’s WiFi 6 is faster; Redmi 12’s BT 5.3 is slightly better for wireless audio.
Storage128GB/256GB (no SD)128GB/256GB (no SD)No expandable storage on either—get the higher storage variant.

2. Key Insights

Oppo Reno6 5G Wins On:

Performance – 3x faster chipset, better for gaming & multitasking.
Display – AMOLED with 1100 nits brightness (far better visibility).
Cameras – Superior sensors, 4K video, and OIS.
Charging – 65W fast charging is a game-changer.

Xiaomi Redmi 12 Wins On:

Battery Life – 5000mAh lasts longer.
Newer OS – Android 13 at launch.
Bigger Screen – 6.79" is better for media (if you can handle the size).

Trade-Offs:

  • Reno6 5G sacrifices battery size for faster charging and better hardware.
  • Redmi 12 cuts corners on performance and display to keep costs low.

3. User Profiles & Recommendations

Best For Oppo Reno6 5G:

🔹 Power users who need speed (gaming, multitasking).
🔹 Photography lovers (better cameras, 4K video).
🔹 Those who hate slow charging (65W is a luxury feature).

Best For Xiaomi Redmi 12:

🔹 Budget-focused buyers who prioritize battery life.
🔹 Media consumers who want a big screen.
🔹 Casual users (social media, light apps).


4. Buying Decision Framework

Ask Yourself:

  1. Do you care more about performance or battery life?
    • Reno6 = Speed | Redmi 12 = Endurance
  2. Is camera quality or screen size more important?
    • Reno6 = Better photos | Redmi 12 = Bigger display
  3. Do you need fast charging?
    • Reno6 (65W) vs. Redmi 12 (18W)

Scenario-Based Picks:

  • Gamer/Photographer?Reno6 5G (better chipset, cameras).
  • Long trips?Redmi 12 (bigger battery).
  • Value for money?Reno6 (better overall package).

Final Verdict: Which Would I Choose?

I’d pick the Oppo Reno6 5G.

  • Why? It’s simply the better all-rounder—faster chipset, AMOLED display, superior cameras, and 65W charging. The Redmi 12’s big battery and screen are nice, but the performance gap is too big to ignore.

If you can find the Reno6 5G at a similar price, it’s the clear winner. The Redmi 12 is only worth it if you strictly prioritize battery life and budget.

Your move—what matters most to you? 🚀

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.