Samsung Galaxy S21 Ultra 5G vs Oppo Reno11 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 January 25, 2024
Release Year 2021 2024

Physical

Volume 111.09 cm³ 95.32 cm³
Screen Size to Weight Ratio 3 "/g 3.68 "/g
Weight 227 g 182 g
Height 165.1 mm 162.4 mm
Width 75.6 mm 74.3 mm
Thickness 8.9 mm 7.9 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Phantom Silver
  • Phantom Titanium
  • Phantom Navy
  • Phantom Brown
  • Navy
  • Wave Green
  • Rock Grey

Display

Screen Size 6.8 " 6.7 "
Resolution 1440 x 3200 1080 x 2412
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.4 % 89.5 %
Pixel Density 515 PPI 394 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 800 nits
Peak Brightness 1500 nits 950 nits

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 111.38 mAh/in²
Battery Density 45.01 mAh/cm³ 52.45 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek Dimensity 7050 (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.6 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 14
Maximum OS Version 15

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S21 Ultra 5GOppo Reno11Practical Impact
Design
Dimensions165.1 x 75.6 x 8.9 mm162.4 x 74.3 x 7.9 mmS21 Ultra is larger and thicker, potentially less comfortable in hand; Reno11 is slimmer and more pocketable.
Weight227g182gReno11 is noticeably lighter, making it more comfortable for extended use and less tiring to hold.
Display
Size6.8"6.7"Minimal difference in screen size; both offer immersive viewing.
Resolution1440 x 32001080 x 2412S21 Ultra has significantly sharper display, resulting in crisper text and images.
PPI515394S21 Ultra provides a noticeably sharper visual experience, finer details on screen are visible compared to Oppo Reno11
TechnologyAMOLEDAMOLEDBoth offer vibrant colors, deep blacks, and excellent contrast.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations, making the user experience more fluid.
Brightness1500 nits1400 nitsS21 Ultra is brighter in direct sunlight, offering better outdoor visibility in sunny environments.
Performance
ChipsetExynos 2100 (5 nm)Dimensity 7050 (6 nm)Reno11 has a newer chipset, showing faster app loading and smoother operation, even if it’s less flagship-level as the S21 Ultra’s Chip.
AnTuTu Score749,000923,559Reno11 demonstrates higher benchmark performance, likely leading to snappier overall usage.
GPUMali-G78 MP14Mali-G68 MC4Different GPU configurations; S21 Ultra's GPU is more powerful for demanding games, while the Reno 11's GPU is decent for normal gameplay
Battery
Capacity5000mAh4800mAhS21 Ultra has slightly larger battery, potentially offering a bit more usage time.
Charging25W67WReno11 charges significantly faster, reducing downtime.
FeaturesWireless, reverseNoneS21 Ultra offers more versatile charging options, including wireless charging and reverse charging.
Camera
Standard Camera108MP, f/1.8, 1/1.33"50MP, f/1.88, 1/2"S21 Ultra has a higher-resolution sensor and larger sensor, potentially capturing more detail and better low-light photos.
Telephoto + Portrait10.8MP, f/2.4, 1/2.65"N/AS21 Ultra offers a dedicated telephoto camera for zoom and portrait shots, Reno11 does not have a dedicated telephoto sensor.
Selfie Camera44MP, f/2.2, 1/2.65"32MP, f/2.4, 1/2.74"S21 Ultra has higher resolution and a slightly wider aperture, which can result in better selfies and low-light performance.
Telephoto Lens10.8MP, f/4.9, 1/2.65"32MP, f/2.0, 1/2.74"Reno11 has better low light performance and higher resolution for telephoto/zoom capabilities.
Wide Angle Lens12.2MP, f/2.2, 1/2.55"8MP, f/2.2, 1/2.8"S21 Ultra has a Wide Angle + Macro lens and a higher resolution, while Reno11 offers a wide-angle lens.
VideoUp to 8KUp to 4KS21 Ultra can record higher resolution video, suitable for more professional video editing.
DxOMarkMobile: 115, Selfie: 135N/AS21 Ultra has scored well on DxOMark, suggesting superior overall camera quality, especially on the selfie camera.
Camera FeaturesMore options including laser AF, Night mode, and moreMore options including noise reductionS21 Ultra has more features for the enthusiast, whereas Reno 11 provides more basic features.
Software
OSAndroid 11, upgradable to 15Android 14Reno11 ships with a newer Android version, possibly providing a more modern user experience.
Connectivity
Wi-FiWiFi 6WiFi 6Both support the latest WiFi standards for fast and reliable connections.
Bluetooth5.2 LE5.2 LEBoth offer modern Bluetooth connectivity with similar features, the S21 Ultra has more features for bluetooth.
GPSGPS, A-GPS, GLONASS, Beidou, Galileo, L1+L5GPS, A-GPS, GLONASS, Beidou, QZSS, GalileoBoth offer comprehensive GPS support, S21 Ultra adds more bands for better accuracy, whereas Reno 11 includes the QZSS for Japan.
SIMDual Nano SIMDual Nano SIMBoth support dual SIM capabilities for using two numbers.
Storage
Internal128/256/512 GB256/512 GBBoth offer ample storage, but Reno11 starts with 256 GB. Neither device support storage expansion.
RAM12/16 GB8/12 GBS21 Ultra offers more RAM for smoother multitasking and resource-intensive apps.
Audio
QualityDolby Atmos, Hi-Res, StereoBasic AudioS21 Ultra offers superior audio quality with better spatial audio and clearer calls.
Security
FeaturesFingerprintFingerprintBoth provide basic biometric security.
Build Quality
ProtectionGorilla Glass VictusUnknownS21 Ultra has better screen protection for scratch and drop resistance.
SensorsVariousVariousS21 Ultra includes more environmental sensors such as a barometer, while both phones are quite similar.
## 2. Key Differences Analysis

Samsung Galaxy S21 Ultra 5G Advantages:

  • Higher Resolution Display: The S21 Ultra's display is significantly sharper and clearer due to its higher resolution and pixel density, providing a better viewing experience.
  • Better Camera System: The S21 Ultra has a more versatile camera setup with a higher-resolution main sensor, dedicated telephoto lenses, and better selfie camera on paper, along with 8K video recording capabilities, which is also supported by the DxOMark ratings.
  • More Versatile Charging Options: The S21 Ultra offers wireless charging, reverse wireless charging, and reverse charging, enhancing its convenience.
  • Better Audio: The S21 Ultra offers better audio with Dolby Atmos, Hi-Res support, and stereo speakers.
  • Better Build Quality: The S21 Ultra has Corning Gorilla Glass Victus, providing superior scratch and drop protection.
  • More RAM Options: With up to 16GB RAM, the S21 Ultra has better performance in demanding tasks.
  • More Sensors: With a barometer, the S21 Ultra is better for environmental measurement.

Oppo Reno11 Advantages:

  • Lighter and More Compact: The Reno11 is significantly lighter and more compact, making it more comfortable to hold and carry.
  • Faster Charging: The 67W fast charging significantly reduces charging times, allowing you to get back to using your phone faster.
  • Newer Operating System: Ships with Android 14, offering a more modern software experience and potentially more future updates.
  • Higher AnTuTu Score: The Reno11 has a significantly better Antutu Score.
  • Better Telephoto Lens: The Reno 11 has better low light and higher resolution for telephoto pictures.

Significant Trade-offs:

  • S21 Ultra: The heavier weight and larger size may not be suitable for everyone. Slower charging time, older software, and more expensive on average.
  • Reno11: The camera system is less versatile compared to the S21 Ultra. Lacks many of the premium features like wireless charging, superior screen protection, and the highest quality audio, and lacks a barometer sensor.

3. User Profiles & Recommendations

Samsung Galaxy S21 Ultra 5G Ideal User:

  • Photography Enthusiasts: Users who want a versatile camera with excellent image quality, zoom capabilities, and professional video recording.
  • Multimedia Consumers: Users who appreciate high-quality displays for watching videos, playing games, and viewing content.
  • Power Users: Those who need ample RAM and robust performance for multitasking and resource-intensive applications.
  • Users Prioritizing Build Quality: Users who want the best possible protection against scratches and drops.
  • Users who want a premium experience: Those who prefer features such as a higher quality audio system, wireless charging, and a more versatile set of sensors.

  • Use Cases:

    • Professional photography and videography
    • Gaming on high settings
    • Running multiple apps simultaneously
    • Outdoor use in bright sunlight
    • Long trips where wireless charging is convenient.

Oppo Reno11 Ideal User:

  • Everyday Users: Users who prioritize convenience, comfort, and fast charging.
  • Social Media Enthusiasts: Users who take lots of selfies or enjoy sharing photos.
  • Users with Budget Constraints: Those looking for a modern phone with good performance at a competitive price.
  • Users who value newer software Those who want a modern software experience and potentially more future updates.

  • Use Cases:

    • Daily communication and social media
    • Casual gaming
    • Quickly charging before heading out
    • Comfortable to use for extended periods
    • Telephoto photos in low light situations.

4. Decision Framework

Key Questions for Buyers:

  1. Do you prioritize camera quality and versatility above all else? If yes, the S21 Ultra's superior camera system, including its higher resolution, telephoto lenses, and professional video capabilities, might be worth the cost.
  2. How important is portability and handling? If you value a lightweight, comfortable phone that is easy to carry and use, the Reno11 is a better option, despite its lack of many of the features of the S21 Ultra.
  3. Is fast charging a crucial requirement? If you need a phone that can quickly recharge, then the Reno11 is better with its 67W charging speed.

Scenario-Based Recommendations:

  • Scenario 1: Professional Photography: If you need the best camera for professional work, the S21 Ultra is the better choice with higher resolution, telephoto lens, 8K video recording, and its DxOMark ratings.
  • Scenario 2: Everyday Use: If you primarily use your phone for social media, daily tasks, and want something easy to carry, the Reno11 offers a more convenient experience, with good performance and fast charging.
  • Scenario 3: Gamers: The S21 Ultra would be better for high graphic gaming due to its more powerful GPU and more RAM, but the Reno11 would also be adequate for less intensive games with its more powerful chipset.
  • Scenario 4: Battery and Charging: If battery life is crucial and you don’t have access to a plug very often the S21 Ultra would be better, but if you do have access to a plug, the Reno11 would be better due to its significantly faster charging.
  • Scenario 5: Budget Conscious Buyer: If price is a major consideration, the Reno11 would be more cost-effective without sacrificing too much in daily performance.

What I would Choose and Why

If I were choosing between these two phones, I would lean towards the Samsung Galaxy S21 Ultra 5G, despite it being an older model. Here's why:

My Priorities:

  1. Camera Versatility and Quality: As someone who enjoys photography and video, the S21 Ultra's superior camera system, including its multiple lenses, high-resolution sensors, and 8K video capabilities, are very important to me.
  2. Display Quality: The higher resolution and pixel density of the S21 Ultra display would be significantly better for daily use.
  3. Build Quality: Having better screen protection is very useful in preventing scratches and accidental damage.
  4. Premium Features: I value having features such as wireless charging, reverse charging, and the higher quality audio system for a more premium experience.
  5. Slightly Better Performance: While the Reno11 is likely to have better everyday performance, the more powerful GPU on the S21 Ultra, especially when paired with the extra RAM, makes it better for more demanding tasks such as gaming, which is important to me.

Why Not the Oppo Reno11?

  • Camera Limitations: While the Reno11's camera is good, it is not as versatile or capable as the S21 Ultra's, especially when it comes to telephoto and video recording.
  • Lack of Premium Features: I would miss the convenience of wireless charging, and the higher quality audio features.

Conclusion: While the Reno11 has the benefits of a newer operating system, a significantly faster charging speed, and lighter build, these do not outweigh the benefits provided by the S21 Ultra, particularly in terms of display quality, camera performance and features, build quality, and overall premium feel. The S21 Ultra is more suitable for my needs, focusing on overall performance, camera quality, and the high-end experience, making it the better choice despite being an older device.

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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