Oppo Reno6 5G vs Xiaomi 13 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 April 21, 2023
Release Year 2021 2023

Physical

Volume 85.92 cm³ 110.79 cm³
Screen Size to Weight Ratio 3.53 "/g 2.96 "/g
Weight 182 g 227 g
Height 156.8 mm 163.2 mm
Width 72.1 mm 74.6 mm
Thickness 7.6 mm 9.1 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Black
  • Yellow
  • Blue
  • White
  • Orange
  • Olive Green

Display

Screen Size 6.43 " 6.73 "
Resolution 1080 x 2400 1440 x 3200
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.3 % 89.8 %
Pixel Density 409 PPI 522 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits N/A
HBM Brightness 600 nits 1300 nits
Peak Brightness 750 nits 2600 nits

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 110.39 mAh/in²
Battery Density 50.05 mAh/cm³ 45.13 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU Mali-G68 MC4 Adreno 740

Connectivity

USB Version 2.0 3.2
OTG Support 1 1
DisplayPort 1
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C 3.2, OTG, DisplayPort

Software

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

Comparison Summary

Oppo Reno6 5G vs. Xiaomi 13 Ultra: A Comprehensive Comparison

1. Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GXiaomi 13 UltraReal-World Implications
Dimensions156.8 × 72.1 × 7.6 mm163.2 × 74.6 × 9.1 mmXiaomi is larger and heavier (227g vs. 182g), making it bulkier but more premium-feeling. Oppo is sleeker and easier to handle.
Weight182g227gOppo is 45g lighter, better for one-handed use and portability.
Screen ProtectionGorilla Glass 5Gorilla Glass Victus 2Xiaomi has superior drop resistance, crucial for durability.
SensorsAccelerometer, GyroscopeAccelerometer, Gyro, Barometer, CompassXiaomi has better environmental sensing (useful for fitness, AR apps).

Display

FeatureOppo Reno6 5GXiaomi 13 UltraReal-World Implications
Size6.43" AMOLED6.73" AMOLEDXiaomi’s larger screen is better for media and multitasking.
Resolution1080x2400 (409 PPI)1440x3200 (522 PPI)Xiaomi’s sharper display enhances text clarity and video detail.
Refresh Rate90Hz120HzXiaomi offers smoother scrolling, better for gaming.
Peak Brightness1100 nits2600 nitsXiaomi is far more viewable in sunlight.

Performance

FeatureOppo Reno6 5GXiaomi 13 UltraReal-World Implications
ChipsetMediaTek Dimensity 900 (6nm)Snapdragon 8 Gen 2 (4nm)Xiaomi’s faster CPU/GPU handles heavy gaming and multitasking better.
AnTuTu Score815K1,532KXiaomi is ~88% faster, future-proof for demanding apps.
RAM Options8GB/12GB12GB/16GBXiaomi is better for heavy multitasking and gaming.

Camera

FeatureOppo Reno6 5GXiaomi 13 UltraReal-World Implications
Main Camera50MP (f/1.8, 1/1.56")50MP (f/1.9, 1")Xiaomi’s larger sensor captures more light, better for low light.
Telephoto13MP (f/2.4)50MP (f/3.0)Xiaomi has superior zoom and detail retention.
Ultrawide16MP (f/2.2)None (but has a 50MP macro-wide hybrid)Oppo has a dedicated ultrawide, while Xiaomi relies on software.
Selfie Camera32MP (f/2.4)32MP (f/2.0)Xiaomi’s brighter aperture helps in low-light selfies.
Video Recording4K@30fps8K@24fps, 4K@60fps (HDR)Xiaomi is far superior for videography.
DxOMark ScoreN/A140 (Photo: 138, Video: 137)One of the best smartphone cameras available.

Battery & Charging

FeatureOppo Reno6 5GXiaomi 13 UltraReal-World Implications
Capacity4500mAh5000mAhXiaomi offers longer battery life.
Charging Speed65W wired90W wired, 50W wirelessXiaomi charges much faster and supports wireless charging.
ExtrasNoneReverse chargingXiaomi can charge other devices, useful for emergencies.

2. Key Insights

Oppo Reno6 5G Strengths:

Slimmer, lighter design – More comfortable for daily carry.
Dedicated ultrawide & macro lenses – Better versatility for casual photography.
Lower price – More budget-friendly.

Xiaomi 13 Ultra Strengths:

Superior performance (Snapdragon 8 Gen 2) – Best for gaming & heavy tasks.
Best-in-class camera system1" sensor, 8K video, and Leica-tuned optics.
Brighter, smoother 120Hz display – Ideal for media consumption.
Faster charging (90W wired + 50W wireless) – More convenient.

Trade-Offs:

Xiaomi is bulkier & heavier – Less comfortable for some users.
Oppo has weaker performance – May struggle with future updates.


3. User Profiles & Recommendations

Who Should Buy the Oppo Reno6 5G?

  • Casual users who prioritize lightweight design, decent cameras, and affordability.
  • Budget-conscious buyers who don’t need flagship performance.

Who Should Buy the Xiaomi 13 Ultra?

  • Photographers & videographers who need professional-grade imaging.
  • Gamers & power users who demand top-tier performance.
  • Media lovers who want the best display & battery life.

4. Buying Decision Framework

3 Key Questions to Ask:

  1. Do you prioritize camera quality?Xiaomi 13 Ultra (far superior).
  2. Do you prefer a lightweight phone?Oppo Reno6 5G (182g vs. 227g).
  3. Do you need long-term performance?Xiaomi 13 Ultra (better chipset, 16GB RAM).

Scenario-Based Recommendations:

  • Best for travel & photography?Xiaomi 13 Ultra (8K video, 1" sensor).
  • Best budget flagship?Oppo Reno6 5G (lower cost, good camera setup).
  • Best for gaming & multitasking?Xiaomi 13 Ultra (Snapdragon 8 Gen 2).

Final Verdict: Which Would I Choose?

I’d pick the Xiaomi 13 Ultra—it’s a no-compromise flagship with the best camera, fastest chipset, and superior display. The 90W charging, 1" sensor, and 8K video make it future-proof, while Oppo’s older chipset and lower resolution limit long-term usability.

However, if portability and affordability matter more, the Oppo Reno6 5G is still a solid mid-range option. But for anyone who wants the best of 2023-2024 smartphone tech, Xiaomi 13 Ultra wins decisively.

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.