Oppo Reno6 5G vs Samsung Galaxy A25 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 December 16, 2023
Release Year 2021 2023

Physical

Volume 85.92 cm³ 102.23 cm³
Screen Size to Weight Ratio 3.53 "/g 3.3 "/g
Weight 182 g 197 g
Height 156.8 mm 161 mm
Width 72.1 mm 76.5 mm
Thickness 7.6 mm 8.3 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Brave Black
  • Optimistic Blue
  • Personality Yellow
  • Fantasy Blue

Display

Screen Size 6.43 " 6.5 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 88.3 % 84.2 %
Pixel Density 409 PPI 396 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 118.34 mAh/in²
Battery Density 50.05 mAh/cm³ 48.91 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Exynos 1280 (5 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G68

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 14
Maximum OS Version 12 18

Comparison Summary

Oppo Reno6 5G vs. Samsung Galaxy A25: A Detailed Comparison

Both phones offer compelling features at their respective price points, but they cater to slightly different audiences. The Oppo Reno6 5G excels in performance, camera flexibility, and fast charging, while the Samsung Galaxy A25 brings a newer OS, better battery life, and a smoother display.

Let’s break down the details.


1. Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GSamsung Galaxy A25Real-World Implications
Dimensions156.8 × 72.1 × 7.6 mm161 × 76.5 × 8.3 mmThe A25 is slightly larger and heavier (197g vs. 182g), making the Reno6 5G more pocket-friendly.
Weight182g197gIf lightness matters, Oppo is the better pick.
Screen ProtectionGorilla Glass 5Gorilla Glass 5Both offer similar durability.
Fingerprint SensorBasic under-displaySide-mountedThe A25’s side-mounted sensor may be more convenient for quick unlocks.

Display

FeatureOppo Reno6 5GSamsung Galaxy A25Real-World Implications
Size6.43" AMOLED6.5" AMOLEDNearly identical size, but A25 is slightly bigger.
Resolution1080x2400 (409 PPI)1080x2340 (396 PPI)Negligible difference in sharpness.
Refresh Rate90Hz120HzA25 offers smoother scrolling and animations.
Peak Brightness1100 nits1000 nitsOppo is better in direct sunlight.

Performance

FeatureOppo Reno6 5GSamsung Galaxy A25Real-World Implications
ChipsetDimensity 900 (6nm)Exynos 1280 (5nm)Oppo’s chip is older but benchmarks 70% higher (815K vs. 480K).
RAM Options8GB / 12GB6GB / 8GBOppo is better for multitasking and gaming.
Storage128GB / 256GB (non-expandable)SameNeither supports microSD, so storage choice matters.

Camera

FeatureOppo Reno6 5GSamsung Galaxy A25Real-World Implications
Main Camera50MP (Sony IMX766, f/1.8)50MP (f/1.8)Oppo has a better sensor (IMX766) for sharper low-light shots.
Ultrawide16MP (Sony IMX481)8MPOppo’s ultrawide is much sharper.
Telephoto13MP (2x zoom)NoneOppo has an actual zoom lens; A25 relies on digital zoom.
Selfie Camera32MP (Sony IMX615)13MPOppo delivers much better selfies.
Video Recording4K@30/60fps, OIS4K@30fps (EIS)Oppo has smoother stabilization (OIS).
DXOMARK ScoreN/A92 (Photo: 98, Video: 94)Samsung’s tuning is highly rated, despite weaker hardware.

Battery & Charging

FeatureOppo Reno6 5GSamsung Galaxy A25Real-World Implications
Capacity4500mAh5000mAhA25 lasts longer per charge.
Charging Speed65W (0-100% in ~30min)25W (~90min)Oppo charges twice as fast.
Battery TechLi-PolymerLi-IonOppo may have better longevity.

Software & Extras

FeatureOppo Reno6 5GSamsung Galaxy A25Real-World Implications
OSAndroid 11 (up to 12)Android 14 (up to 18)A25 has 4 more years of updates.
AudioBasicDolby Atmos, StereoSamsung wins for sound quality.
WiFi/BluetoothWiFi 6, BT 5.2WiFi 5, BT 5.3Oppo has faster WiFi; Samsung has newer Bluetooth.

2. Key Insights

Why Choose the Oppo Reno6 5G?

Faster Performance – Benchmarks 70% higher, better for gaming.
Superior Cameras – Telephoto & ultrawide lenses, better selfies.
Ultra-Fast Charging – 65W vs. 25W makes a huge difference.
More RAM – 12GB option helps with heavy multitasking.

Why Choose the Samsung Galaxy A25?

Longer Battery Life – 5000mAh vs. 4500mAh.
Smoother Display – 120Hz refresh rate.
Newer Software – Android 14 with 4 years of updates.
Better Audio – Dolby Atmos & stereo speakers.

Trade-Offs

  • Oppo Reno6 5G has an older OS and no future updates.
  • Samsung Galaxy A25 has weaker performance and no telephoto lens.

3. Who Should Buy Which?

Oppo Reno6 5G is Best For:

  • Photographers – Better zoom, selfies, and sensor quality.
  • Gamers – Stronger chipset and more RAM.
  • Busy Users – 65W charging means less downtime.

Samsung Galaxy A25 is Best For:

  • Longevity Seekers – 4+ years of updates.
  • Media Consumers – 120Hz screen & Dolby Atmos.
  • Battery Life Lovers – 5000mAh lasts longer on a charge.

4. Buying Decision Framework

Ask yourself:

  1. Do you prioritize camera quality and performance?Oppo Reno6 5G
  2. Do you want a long-lasting phone with updates?Samsung Galaxy A25
  3. Do you care about charging speed or battery capacity?
    • Fast charging → Oppo
    • Bigger battery → Samsung

Final Verdict: Which Would I Choose?

If I had to pick, I’d go with the Oppo Reno6 5Gbut only if I could get it at a good price. The better camera system, faster performance, and blazing 65W charging make it a more versatile daily driver.

However, if long-term software support and battery life are critical, the Samsung Galaxy A25 is the smarter long-term investment.

My Choice: Oppo Reno6 5G (for photography & speed) or Samsung Galaxy A25 (for updates & battery).
If I had to pick just one? Oppo Reno6 5G—it’s a better all-rounder today. But in 2 years, the A25 might age better.

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.