Oppo Reno6 5G vs Xiaomi Poco X3 GT - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 August 19, 2021
Release Year 2021 2021

Physical

Volume 85.92 cm³ 110.31 cm³
Screen Size to Weight Ratio 3.53 "/g 3.42 "/g
Weight 182 g 193 g
Height 156.8 mm 163.3 mm
Width 72.1 mm 75.9 mm
Thickness 7.6 mm 8.9 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Cloud White
  • Stargaze Black
  • Wave Blue

Display

Screen Size 6.43 " 6.6 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.3 % 84.9 %
Pixel Density 409 PPI 399 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits 450 nits
HBM Brightness 600 nits N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 114.78 mAh/in²
Battery Density 50.05 mAh/cm³ 45.33 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Mediatek Dimensity 1100 (6 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G77 MC9

Connectivity

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

Software

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

Comparison Summary

Oppo Reno6 5G vs Xiaomi Poco X3 GT: The Ultimate Mid-Range Showdown

When choosing between these two capable mid-range phones, the decision hinges on whether you prioritize camera versatility and display quality (Oppo Reno6 5G) or raw performance, battery life, and gaming chops (Xiaomi Poco X3 GT). Let’s break it down.


1. Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GXiaomi Poco X3 GTReal-World Implications
Dimensions156.8 × 72.1 × 7.6 mm163.3 × 75.9 × 8.9 mmReno6 is slimmer and lighter (182g vs 193g), better for one-handed use. Poco X3 GT is bulkier but sturdier.
ProtectionGorilla Glass 5Gorilla Glass VictusPoco X3 GT has better drop resistance.
Fingerprint SensorBasic under-displaySide-mountedPoco’s side sensor is faster; Oppo’s is sleeker but less reliable.

Takeaway: If you prefer a more compact phone with premium aesthetics, the Reno6 wins. If durability and a grippier feel matter, the Poco X3 GT is the choice.


Display

FeatureOppo Reno6 5GXiaomi Poco X3 GTReal-World Implications
Panel TypeAMOLEDIPS LCDAMOLED = deeper blacks, better contrast, more battery-efficient.
Refresh Rate90Hz120HzPoco X3 GT feels smoother in UI/gaming, but AMOLED makes Reno6’s 90Hz look better.
Brightness1100 nits (peak)Not specifiedReno6 is far superior in sunlight visibility.
Size6.43"6.6"Poco X3 GT offers a slightly larger screen.

Takeaway: The Reno6’s AMOLED screen is the clear winner for media consumption, but the Poco X3 GT’s 120Hz may appeal to gamers.


Performance

FeatureOppo Reno6 5GXiaomi Poco X3 GTReal-World Implications
ChipsetDimensity 900Dimensity 1100Poco X3 GT has a faster CPU (~10-15% better performance).
GPUMali-G68 MC4Mali-G77 MC9Poco X3 GT is better for demanding games like Genshin Impact.
RAM Options8GB / 12GB8GBMore RAM in the Reno6 helps with heavy multitasking.
AnTuTu Score815,200745,283Oddly, the Reno6 scores higher despite weaker hardware (likely due to optimization).

Takeaway: The Poco X3 GT is the better performer, especially for gaming, but the Reno6 holds up well in everyday tasks.


Camera

FeatureOppo Reno6 5GXiaomi Poco X3 GTReal-World Implications
Main Camera50MP (Sony IMX766)64MP (Omnivision OV64B)Oppo has a larger sensor (better low light), Poco has higher resolution.
Ultrawide16MP (Sony IMX481)✖️ NoneReno6 is much better for landscapes/group shots.
Telephoto13MP (2x zoom)✖️ NoneReno6 offers optical zoom, Poco relies on digital.
Selfie32MP (Sony IMX615)16MPOppo is significantly better for selfies.
Video StabilizationOIS + EISEIS onlyReno6 offers smoother, more stable footage.

Takeaway: The Reno6 is the clear camera champion, especially for those who care about versatility. The Poco X3 GT’s main sensor is decent but lacks secondary lenses.


Battery & Charging

FeatureOppo Reno6 5GXiaomi Poco X3 GTReal-World Implications
Capacity4500mAh5000mAhPoco X3 GT lasts longer (~15-20% extra runtime).
Charging Speed65W67WBoth charge insanely fast (~30-40 min for full charge).
AudioBasicStereo, Dolby AtmosPoco X3 GT has much better speakers.

Takeaway: The Poco X3 GT wins on battery life and audio, but both charge incredibly fast.


2. Key Insights

Oppo Reno6 5G Strengths

  • Superior AMOLED display (better colors, brightness, contrast).
  • More versatile camera system (ultrawide, zoom, better selfies).
  • Slimmer, lighter design (easier to handle).

Xiaomi Poco X3 GT Strengths

  • Better performance (faster chipset, smoother 120Hz screen).
  • Bigger battery (5000mAh vs 4500mAh).
  • Stereo speakers & Dolby Atmos (better for media).

3. Who Should Buy Which?

Choose the Oppo Reno6 5G if you:

✅ Prioritize camera versatility (travelers, social media creators).
✅ Want the best display for media consumption.
✅ Prefer a sleek, lightweight phone.

Choose the Xiaomi Poco X3 GT if you:

✅ Play heavy games (better GPU, 120Hz display).
✅ Need longer battery life.
✅ Want louder, better-quality speakers.


4. Final Decision: What Would I Pick?

I’d go with the Oppo Reno6 5G.

Why?

  • The AMOLED screen is a game-changer for everyday use.
  • The camera system is vastly more flexible.
  • The design is sleeker and more premium.

The Poco X3 GT is great for gamers and battery life, but the Reno6 offers a more balanced experience for most users. If cameras and display matter, the Reno6 is the clear winner.

Your move—what’s more important 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.