Oppo Reno6 5G vs Samsung Galaxy S21 FE 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 January 7, 2022
Release Year 2021 2022

Physical

Volume 85.92 cm³ 91.64 cm³
Screen Size to Weight Ratio 3.53 "/g 3.62 "/g
Weight 182 g 177 g
Height 156.8 mm 155.7 mm
Width 72.1 mm 74.5 mm
Thickness 7.6 mm 7.9 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • White
  • Graphite
  • Lavender
  • Olive

Display

Screen Size 6.43 " 6.4 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 88.3 % 86.7 %
Pixel Density 409 PPI 403 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits N/A
HBM Brightness 600 nits N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 109.86 mAh/in²
Battery Density 50.05 mAh/cm³ 49.11 mAh/cm³
Battery Capacity 4300 mAh 4500 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - Version 1
GPU Mali-G68 MC4 Adreno 660 - Version 1

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 12 16

Comparison Summary

Oppo Reno6 5G vs. Samsung Galaxy S21 FE 5G: The Ultimate Showdown

1. Specifications Breakdown

CategoryFeatureOppo Reno6 5GSamsung Galaxy S21 FE 5GReal-World Implications
DesignDimensions156.8 × 72.1 × 7.6 mm155.7 × 74.5 × 7.9 mmS21 FE is slightly wider and thicker, while Reno6 is taller. Both are similarly pocketable.
Weight182g177gS21 FE is marginally lighter—noticeable during long one-handed use.
Build ProtectionGorilla Glass 5Gorilla Glass VictusS21 FE has a more scratch- and drop-resistant display.
DisplaySize6.43" AMOLED6.4" AMOLEDNearly identical sizes—minor preference difference.
Refresh Rate90Hz120HzS21 FE offers smoother scrolling and animations.
Peak Brightness1100 nits1300 nitsS21 FE is significantly better in direct sunlight.
PerformanceChipsetMediaTek Dimensity 900 (6nm)Snapdragon 888 (5nm)Snapdragon 888 is significantly faster (13% higher AnTuTu score).
RAM Options8GB / 12GB6GB / 8GBOppo offers more RAM, but Samsung’s optimization may balance this.
CameraMain Sensor50MP (Sony IMX766, f/1.8)12MP (Sony IMX555, f/1.8)Oppo has a higher-resolution sensor, but Samsung’s DxOMark score (117 vs. untested) suggests better processing.
Ultra-Wide16MP (Sony IMX481)13MP (Sony IMX258) + MacroOppo has a dedicated ultra-wide lens, while Samsung combines it with macro.
Telephoto13MP (2x zoom)8MP (3x zoom)Oppo has higher resolution, but Samsung offers better zoom range.
Selfie32MP (f/2.4)32MP (f/2.2)Similar, but Samsung’s DxOMark score (127) suggests better selfie processing.
Video Recording4K@30/60fps, 1080p@240fps4K@60fps, 1080p@960fps (Super Slow-Mo)Samsung has better stabilization (EIS + HDR) and extreme slow-motion.
Battery & ChargingCapacity4500mAh4500mAhSimilar battery life expected.
Wired Charging65W (ultra-fast)25W (slower)Oppo charges much faster (~30 min full charge vs. ~70 min on Samsung).
Wireless ChargingNo15W (with reverse wireless)Samsung wins for convenience.
Audio & ExtrasSpeaker SetupSingle speakerStereo speakers with Dolby AtmosSamsung offers better audio immersion.
Software SupportAndroid 11 → 12Android 12 → 16Samsung guarantees longer updates (4 years vs. Oppo’s 1 major update).
ConnectivityBluetooth 5.2, more GPS systemsBluetooth 5.0, standard GPSOppo has better Bluetooth and GPS precision.

2. Key Insights

Oppo Reno6 5G Strengths

Faster Charging (65W vs. 25W) – Great for users who need quick top-ups.
More RAM (12GB option) – Better for heavy multitasking and gaming.
Higher-resolution main camera (50MP vs. 12MP) – More detail in well-lit shots.
Extra ultra-wide and macro cameras – More versatile for creative photography.

Samsung Galaxy S21 FE 5G Strengths

Superior Display (120Hz, 1300 nits) – Smoother animations, better outdoor visibility.
Better Performance (Snapdragon 888) – Faster CPU/GPU for demanding apps.
Wireless Charging + Better Build – More premium feel with Gorilla Glass Victus.
Longer Software Support (up to Android 16) – Better longevity.
Better Audio & Video Features – Stereo speakers, Dolby Atmos, 960fps slow-motion.

Trade-Offs & Limitations

  • Oppo Reno6 5G has worse software support and lacks wireless charging.
  • Samsung S21 FE 5G has slower wired charging and a lower-resolution main camera.

3. User Profiles & Recommendations

Who Should Buy the Oppo Reno6 5G?

Power users who need fast charging – If you hate waiting for your phone to charge, the 65W charging is a game-changer.
Photographers who prefer versatility – The dedicated ultra-wide and macro lenses help in creative shots.
Budget-conscious buyers – If the S21 FE is priced higher, the Reno6 offers solid value.

Who Should Buy the Samsung Galaxy S21 FE 5G?

Gamers & performance seekers – Snapdragon 888 + 120Hz display = buttery smooth gameplay.
Long-term users – 4 years of updates make it a better investment.
Media lovers – Stereo speakers, brighter screen, and better video features enhance the experience.

4. Buying Decision Framework

3 Questions to Help You Decide:

  1. Do you prioritize charging speed or wireless charging? (Oppo = fast wired, Samsung = wireless + slower wired)
  2. Do you care more about camera versatility or video quality? (Oppo = more lenses, Samsung = better stabilization + slow-motion)
  3. Do you plan to keep your phone for 3+ years? (Samsung wins with longer updates)

Scenario-Based Picks:

  • For Travelers: Samsung S21 FE (better GPS, brighter screen, superior video).
  • For Social Media Creators: Oppo Reno6 5G (higher-res selfie & main camera).
  • For Gamers & Power Users: Samsung S21 FE (better chipset, smoother display).

Final Verdict: Which Would I Choose?

I’d pick the Samsung Galaxy S21 FE 5Ghere’s why:

  1. Future-proofing (4 years of updates vs. Oppo’s 1).
  2. Better display (120Hz + 1300 nits) makes a daily difference.
  3. Superior performance (Snapdragon 888) handles everything smoothly.
  4. Wireless charging + Dolby Atmos add premium convenience.

While the Oppo Reno6 5G has faster charging and more RAM, the S21 FE’s long-term value, display, and processing power make it the better all-rounder for most users.

But if you’re a fast-charging addict or love ultra-wide photography, the Reno6 5G is still a strong contender. 🚀

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.