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

Detailed Comparison

Specification

General

Launch Date January 29, 2021 June 11, 2021
Release Year 2021 2021

Physical

Volume 95.23 cm³ 85.92 cm³
Screen Size to Weight Ratio 3.35 "/g 3.53 "/g
Weight 200 g 182 g
Height 161.5 mm 156.8 mm
Width 75.6 mm 72.1 mm
Thickness 7.8 mm 7.6 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Blue
  • Aurora
  • Purple
  • Stellar Black

Display

Screen Size 6.7 " 6.43 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 88.3 %
Pixel Density 394 PPI 409 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A 430 nits
HBM Brightness N/A 600 nits
Peak Brightness 1300 nits 750 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 104.00 mAh/in²
Battery Density 50.4 mAh/cm³ 50.05 mAh/cm³
Battery Capacity 4800 mAh 4300 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek Dimensity 900 (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G68 MC4

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 15 12

Comparison Summary

1. Specifications Comparison

Design

FeatureSamsung Galaxy S21+ 5GOppo Reno6 5GPractical Impact
Dimensions161.5 x 75.6 x 7.8 mm156.8 x 72.1 x 7.6 mmS21+ is larger and may feel less comfortable in hand for some users; Reno6 is more compact and pocketable.
Weight200g182gReno6 is noticeably lighter, making it more comfortable for extended one-handed use.
Build MaterialGorilla Glass Victus (screen), Glass BackGorilla Glass 5 (screen), Glass BackS21+ offers potentially better scratch and shatter resistance with Victus, Reno6 has slightly older Gorilla Glass 5

Display

FeatureSamsung Galaxy S21+ 5GOppo Reno6 5GPractical Impact
Size6.7"6.43"S21+ has a larger screen for more immersive media consumption and multitasking. Reno6 is slightly easier to handle.
Resolution1080 x 24001080 x 2400Both offer sharp visuals, no noticeable difference in everyday use.
PPI394409Negligible difference in pixel density; both displays are sharp.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors, deep blacks, and excellent contrast.
Refresh Rate120Hz90HzS21+ offers smoother scrolling and animations, which is noticeable in fast-paced games and navigating the UI.
Brightness1300 nits1100 nitsS21+ offers slightly better outdoor visibility in bright sunlight.

Performance

FeatureSamsung Galaxy S21+ 5GOppo Reno6 5GPractical Impact
ChipsetExynos 2100 (5nm)Mediatek Dimensity 900 (6nm)Both offer good performance but benchmarks suggest that Reno6 is marginally faster, while the real-world performance difference is small in most cases.
AnTuTu Score749,100815,200Reno6 has a slightly higher score, indicating marginally better performance, especially in gaming.
GPUMali-G78 MP14Mali-G68 MC4Both offer good graphics performance for gaming and video playback.

Camera

FeatureSamsung Galaxy S21+ 5GOppo Reno6 5GPractical Impact
Main Camera12MP, f/1.8, 1/1.76", 1.8µm50MP, f/1.8, 1/1.56", 1µmReno6's main sensor has higher resolution and larger sensor, potentially better low-light performance and more detailed images.
Telephoto Camera64MP, f/2.0, 1/1.72", 0.8µm13MP, f/2.4, 1/3.4", 1µmS21+ includes a dedicated telephoto for zooming and a portrait lens. Reno6 includes a telephoto lens, but with a different sensor.
Ultrawide Camera12.2MP, f/2.2, 1/2.55", 1.4µm16MP, f/2.2, 1/3.09", 1µmS21+ has a dedicated wide+macro, while Reno6 has a dedicated ultrawide
Macro LensNot available2MP, f/2.4Reno6 offers a dedicated macro lens for close-up photography, but the 2MP resolution is quite low.
Selfie Camera10MP, f/2.2, 1/3.2", 1.22µm32MP, f/2.4, 1/2.74", 0.8µmReno6 has a higher resolution selfie camera, while S21+ has a wider aperture.
Video RecordingUp to 8K@24fpsUp to 4K@30fpsS21+ offers higher resolution video recording capabilities and more frame rate options, Reno6 is limited to 4k30fps.
DXOMark Score111 (Mobile), 118 (Photo), 89 (Video)Not AvailableS21+ has been evaluated and offers good camera capabilities, but there is no information for the Reno6.

Battery

FeatureSamsung Galaxy S21+ 5GOppo Reno6 5GPractical Impact
Capacity4800 mAh4500 mAhS21+ has a slightly larger battery, which might offer slightly longer battery life.
Charging Speed25W65WReno6 offers significantly faster charging, which can be a big time saver.
Features15W wireless charging, 4.5W reverse wireless chargingNoneS21+ has wireless charging and reverse charging, which offers additional convenience

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Larger, Smoother Display: 6.7" 120Hz AMOLED display provides a more immersive experience and smoother animations.
  • More Powerful Video Recording: Supports 8K video recording, offering higher quality video content creation.
  • Better Wireless Charging: Includes both 15W wireless charging and reverse wireless charging features, offering more convenience.
  • More comprehensive sensor suite: Includes additional sensors like Compass, Barometer, and Hall sensors.
  • Higher Screen Protection: Comes with Gorilla Glass Victus for better scratch and shatter resistance

Oppo Reno6 5G Advantages:

  • More Compact and Lightweight: Easier to handle, more comfortable for extended use and better pocketability.
  • Faster Charging: 65W fast charging replenishes the battery much faster than the S21+.
  • Higher Benchmark Scores: Marginally faster performance in benchmarks.
  • Better main camera: Better low-light performance, more detailed images and improved selfie performance.
  • More GPS systems: Offers more accurate positioning.
  • Newer Bluetooth: Includes Bluetooth 5.2
  • More RAM: 12GB variant provides additional headroom for multitasking.

Trade-offs:

  • The S21+ sacrifices some compactness and charging speed for a larger display and additional camera features.
  • The Reno6 sacrifices some display smoothness and wireless charging for faster charging and better compactness.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G is ideal for:

  • Media Consumers: Users who prioritize a large, high-quality display for watching videos and browsing.
  • Video Creators: Users who need high-resolution video recording capabilities and a good camera system with versatile options.
  • Power Users: Users who need wireless charging and reverse charging for maximum convenience.
  • Gamers: Users that want smoother animations, even with some trade offs on peak performance

Specific Use Cases for S21+:

  • Watching movies and TV shows on the go.
  • Recording professional-grade video content.
  • Heavy multitasking with a large screen.
  • Wireless charging ecosystem.

Oppo Reno6 5G is ideal for:

  • Everyday Users: Users who need a compact, lightweight device for comfortable daily use.
  • Fast Chargers: Users who value fast charging and want to spend less time tethered to a charger.
  • Photography Enthusiasts: Users who want a versatile camera with good low-light performance
  • Gamers Users who need maximum raw performance for mobile gaming.

Specific Use Cases for Reno6:

  • Taking photos and videos in a variety of settings.
  • Quickly charging the phone before leaving the house.
  • Comfortable one-handed use for extended periods.
  • Playing demanding games and multitasking.

Price-to-Value:

  • The S21+ offers a premium display and wireless charging, but may be more expensive.
  • The Reno6 offers slightly better value for users who prioritize performance and charging speed.

4. Decision Framework

Key Questions for Buyers:

  1. Do you prefer a larger screen or a more compact, lightweight phone?
  2. Is fast charging or wireless charging more important to you?
  3. Do you prioritize video quality and features over camera versatility?

Scenario-Based Recommendations:

  • Scenario 1: "I watch a lot of videos on my phone and want a smooth experience."
    • Recommendation: Samsung Galaxy S21+ 5G with its larger 120Hz display is the better choice.
  • Scenario 2: "I often find my phone battery low and need a quick charge."
    • Recommendation: Oppo Reno6 5G due to its significantly faster 65W charging.
  • Scenario 3: "I take a lot of photos and need a versatile camera system."
    • Recommendation: Oppo Reno6 5G for its higher resolution main camera, ultrawide, telephoto, and macro lenses.
  • Scenario 4: "I want a premium phone with wireless charging and a good display."
    • Recommendation: Samsung Galaxy S21+ 5G for its better overall premium experience and additional features.

My Choice

I would choose the Samsung Galaxy S21+ 5G.

Reasoning:

While the Oppo Reno6 5G offers a compelling package with its faster charging and slightly higher benchmark scores, the Samsung Galaxy S21+ 5G better aligns with my priorities. I value the larger, smoother 120Hz display for an immersive viewing experience and the better video recording capabilities for content creation. The inclusion of wireless charging, which I use regularly, is a significant convenience. While the Reno6 is more compact, the added screen real estate and premium features of the S21+ are worth the trade-off for me. The slight performance advantage of the Reno6 isn't a major factor for my typical use case, where the S21+ performs exceptionally well too. I also prioritize video quality and features and the S21+ is superior in this respect. Ultimately, for me, the S21+ offers a more comprehensive and premium smartphone experience despite being slightly bulkier and having slower charging.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

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