Oppo Reno6 5G vs Samsung Galaxy A55 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 March 15, 2024
Release Year 2021 2024

Physical

Volume 85.92 cm³ 102.25 cm³
Screen Size to Weight Ratio 3.53 "/g 3.1 "/g
Weight 182 g 213 g
Height 156.8 mm 161.1 mm
Width 72.1 mm 77.4 mm
Thickness 7.6 mm 8.2 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Navy
  • Iceblue
  • Lilac
  • Lemon

Display

Screen Size 6.43 " 6.6 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 88.3 % 85.8 %
Pixel Density 409 PPI 390 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits N/A
HBM Brightness 600 nits 1000 nits
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 48.9 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Exynos 1480 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Mali-G68 MC4 Xclipse 530

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 12 18

Comparison Summary

Oppo Reno6 5G vs. Samsung Galaxy A55: Which Should You Buy?

Both the Oppo Reno6 5G and Samsung Galaxy A55 are strong mid-range contenders, but they cater to slightly different priorities. Let’s break down the specs, real-world performance, and ideal user profiles to help you decide.


1. Specifications Breakdown

🔹 Design & Build

FeatureOppo Reno6 5GSamsung Galaxy A55Real-World Implications
Dimensions156.8 × 72.1 × 7.6 mm161.1 × 77.4 × 8.2 mmReno6 5G is smaller and lighter (182g vs. 213g), making it easier to handle. A55 is bulkier but sturdier.
Screen ProtectionGorilla Glass 5Gorilla Glass VictusA55 has better drop resistance. Reno6 5G's glass is still durable but not as tough.
IP RatingNo official ratingIP67 dust/water resistanceA55 is better for outdoor/rugged use. Reno6 5G lacks water protection.

💡 Key Insight:

  • Choose Reno6 5G if you prefer a slimmer, lighter phone.
  • Pick A55 if you need better durability and water resistance.

🔹 Display

FeatureOppo Reno6 5GSamsung Galaxy A55Real-World Implications
Size6.43" AMOLED6.6" AMOLEDA55 offers a slightly larger screen for media. Not a huge difference.
Refresh Rate90Hz120HzA55’s 120Hz feels smoother in scrolling/gaming. Reno6 5G still decent.
Brightness1100 nits (peak)Unknown (likely lower)Reno6 5G is significantly brighter outdoors. A55 might struggle in direct sunlight.

💡 Key Insight:

  • Reno6 5G wins in sunlight visibility.
  • A55’s 120Hz is better for smooth gaming/media.

🔹 Performance & Software

FeatureOppo Reno6 5GSamsung Galaxy A55Real-World Implications
ChipsetMediaTek Dimensity 900 (6nm)Exynos 1480 (4nm)Exynos 1480 is more efficient (4nm vs. 6nm).
Benchmark (AnTuTu)815,200713,393Reno6 5G scores higher but is older. Real-world difference may be minor.
RAM/Storage8/12GB + 128/256GB8/12GB + 128/256GBBoth are great for multitasking, but no SD card support.
SoftwareAndroid 11 (up to 12)Android 14 (up to 18)A55 will get longer updates (Samsung’s 4-year policy).

💡 Key Insight:

  • A55 is more future-proof with better software support.
  • Reno6 5G has slightly better raw performance (AnTuTu) but is aging.

🔹 Battery & Charging

FeatureOppo Reno6 5GSamsung Galaxy A55Real-World Implications
Capacity4500mAh5000mAhA55 lasts longer on a charge. Reno6 5G is still decent.
Charging Speed65W fast charging25W fast chargingReno6 5G charges twice as fast. A55’s battery is bigger but slower to fill.

💡 Key Insight:

  • Need all-day battery? A55 wins.
  • Want ultra-fast charging? Reno6 5G is better.

🔹 Cameras

FeatureOppo Reno6 5GSamsung Galaxy A55Real-World Implications
Main (50MP)Sony IMX766 (1/1.56")Sony IMX906 (1/1.56")Similar quality. A55 has better DxOMark scores (108 vs. untested).
Ultrawide16MP (f/2.2)13MP (f/2.2)Reno6 5G has a slightly better ultrawide.
Telephoto13MP (2x zoom)NoneReno6 5G has a telephoto lens; A55 lacks one.
Selfie32MP (f/2.4)32MP (f/2.2)A55’s wider aperture helps in low-light selfies.
Video Features4K 30fps, OIS, slow-mo4K 30fps, EIS, Ultra StableA55 has better stabilization for video.

💡 Key Insight:

  • Reno6 5G has a telephoto lens (better zoom).
  • A55 has better video stabilization and DxOMark-rated imaging.

2. Key Strengths & Trade-Offs

🔥 Oppo Reno6 5G Pros:

Faster charging (65W vs. 25W)
Brighter display (1100 nits vs. unknown on A55)
Lighter and slimmer design
Telephoto lens for better zoom

⚠️ Oppo Reno6 5G Cons:

Older software (Android 11, limited updates)
No IP rating (less durable)
Smaller battery (4500mAh vs. 5000mAh)


🔥 Samsung Galaxy A55 Pros:

Longer battery life (5000mAh)
Better software support (Android 14, 4+ years updates)
IP67 water resistance
120Hz AMOLED (smoother than 90Hz)

⚠️ Samsung Galaxy A55 Cons:

Slower charging (25W vs. 65W)
No telephoto lens
Heavier and bulkier


3. Who Should Buy Which Phone?

📱 Choose Oppo Reno6 5G If:

✔ You want fast charging (65W fills up in ~30 mins).
✔ You prefer a lighter, slimmer phone.
✔ You use zoom frequently (has a telephoto lens).
✔ You need better outdoor screen visibility.

📱 Choose Samsung Galaxy A55 If:

✔ You care about long-term software updates.
✔ You want better battery life.
✔ You need water resistance (IP67).
✔ You value 120Hz smoothness and Samsung’s ecosystem.


4. Final Decision: What Would I Choose?

I’d pick the Samsung Galaxy A55. Here’s why:

  • Better software support (4+ years vs. Oppo’s 2 years).
  • IP67 water resistance adds durability.
  • 120Hz display feels smoother for daily use.
  • Larger battery compensates for slower charging.

However, if fast charging, a telephoto lens, or extreme brightness are critical for you, the Oppo Reno6 5G is still a great choice—if you can find it at a lower price.

💬 Still Undecided? Ask Yourself:

  1. Do I need a telephoto lens for zoom shots? → Oppo
  2. Do I prioritize software updates and durability? → Samsung
  3. Is fast charging more important than battery size? → Oppo

Both are solid—pick based on your biggest priorities. 🚀

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.