OnePlus 9 vs Samsung Galaxy S23 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9
OnePlus 9
Oneplus

General

Launch Date March 26, 2021 February 17, 2023
Release Year 2021 2023

Physical

Volume 103.29 cm³ 113.58 cm³
Screen Size to Weight Ratio 3.41 "/g 2.91 "/g
Weight 192 g 234 g
Height 160 mm 163.4 mm
Width 74.2 mm 78.1 mm
Thickness 8.7 mm 8.9 mm
Foldable Design No No
Available Colors
  • Winter Mist
  • Arctic Sky
  • Astral Black
  • Red
  • Green
  • Graphite
  • Phantom Black
  • Lavender
  • Cream
  • Sky Blue
  • Lime
  • BMW M Edition

Display

Screen Size 6.55 " 6.8 "
Resolution 1080 x 2400 1440 x 3088
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 87.2 % 89.5 %
Pixel Density 402 PPI 500 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1200 nits
Peak Brightness 1100 nits 1750 nits

Hardware

Battery Capacity per Screen Area 104.89 mAh/in² 108.13 mAh/in²
Battery Density 43.57 mAh/cm³ 44.02 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU Adreno 660 Adreno 740

Connectivity

USB Version 3.1 3.2
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.1, OTG USB Type-C 3.2, OTG

Software

Operating System Android Android
Initial OS Version 11 13
Maximum OS Version 13 17

Comparison Summary

1. Specifications Comparison

Design

FeatureOnePlus 9Samsung Galaxy S23 UltraPractical Impact
Dimensions160 × 74.2 × 8.7 mm163.4 × 78.1 × 8.9 mmS23 Ultra is larger and may be less comfortable for smaller hands. OnePlus 9 is more pocketable.
Weight192g234gOnePlus 9 is significantly lighter, easier to handle for long periods. S23 Ultra feels more substantial but heavier.
BuildGorilla Glass 5 (screen)Gorilla Glass Victus (screen)S23 Ultra offers superior screen scratch and impact protection.

Display

FeatureOnePlus 9Samsung Galaxy S23 UltraPractical Impact
Size6.55"6.8"S23 Ultra provides a slightly larger viewing area, better for media consumption and multitasking.
Resolution1080x24001440x3088S23 Ultra's higher resolution results in sharper visuals, especially noticeable for text and detailed images.
Pixel Density402 PPI500 PPIS23 Ultra offers a noticeably sharper display with finer details and smoother text.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks, but the S23 Ultra's higher brightness is a plus.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations, making for a fluid user experience.
Brightness1100 nits1750 nitsS23 Ultra is significantly more visible in bright sunlight and outdoor conditions.

Performance

FeatureOnePlus 9Samsung Galaxy S23 UltraPractical Impact
ChipsetSnapdragon 888 5G (5nm)Snapdragon 8 Gen 2 (4nm)S23 Ultra offers significantly better performance, faster app loading, smoother multitasking and higher frame rates for gaming.
AnTuTu Score880,9001,521,862S23 Ultra provides a far superior experience for demanding tasks, heavy gaming, and future-proofing.
GPUAdreno 660Adreno 740S23 Ultra has a much more powerful GPU for demanding graphics in games and other applications.

Camera

FeatureOnePlus 9Samsung Galaxy S23 UltraPractical Impact
Main Camera48MP, f/1.79, 1/1.4"200MP, f/1.7, 1/1.3"S23 Ultra captures significantly more detailed images, especially in good light. Better low light performance due to larger sensor and aperture.
Telephoto + PortraitN/A12MP, f/2.4, 1/3.52"S23 Ultra offers dedicated telephoto/portrait capabilities, allowing for greater flexibility in zoom and portrait shots.
Selfie Camera16MP, f/2.4, 1/3.13"12MP, f/2.2OnePlus 9 has a slightly higher resolution, but S23 Ultra offers wider aperture for better low-light selfies.
Telephoto LensN/A12MP, f/4.9, 1/3.52"S23 Ultra includes a dedicated telephoto lens, enabling long-range zooming capabilities.
Wide Angle Lens50MP, f/2.2, 1/1.56"12.2MP, f/2.2, 1/2.55"OnePlus 9 offers higher resolution and a slightly larger sensor for wide angle photography.
Black & White Lens2MP, f/2.4N/AOnePlus 9 has a dedicated B&W lens for artistic monochrome shots.
VideoUp to 8K@30fps, HDR, EISUp to 8K@30fps, HDR, EIS, Stereo Sound, 1080p@960fpsS23 Ultra offers more advanced video features such as stereo sound, 960fps slow motion and superior stabilization.
DXOMarkNot Tested140 (Mobile)S23 Ultra has a very high camera score, signifying excellent performance in photo and video capture.

Battery

FeatureOnePlus 9Samsung Galaxy S23 UltraPractical Impact
Capacity4500 mAh5000 mAhS23 Ultra offers a larger battery, potentially providing longer battery life for daily use.
Charging65W Fast Charging45W Fast ChargingOnePlus 9 charges faster, meaning less time plugged into the wall.
Features15W Wireless ChargingBypass ChargingOnePlus 9 offers wireless charging, while S23 Ultra has bypass charging for safer extended gaming sessions.

2. Key Differences Analysis

OnePlus 9 Advantages:

  • Lighter and More Compact: More comfortable for one-handed use and easier to carry around.
  • Faster Charging: 65W charging means quicker top-ups and less downtime.
  • Dedicated Black & White Lens: Offers a unique camera feature for artistic photographers.
  • Wireless Charging: Convenient for users who prefer cable-free charging solutions.

Practical Implications: The OnePlus 9 is designed for users who value portability and speed. Its fast charging is a significant advantage for those who are often on the go.

Samsung Galaxy S23 Ultra Advantages:

  • Superior Display: Higher resolution, higher brightness, sharper image and better outdoor visibility.
  • Significantly Faster Performance: Offers much more powerful processing, ideal for demanding tasks, gaming, and future-proofing.
  • More Versatile Camera System: Offers more zoom options and better overall image quality, especially in low light and with its main sensor.
  • Larger Battery: Provides longer battery life, crucial for users with heavy usage patterns.
  • Superior Build and Screen Protection: Offers enhanced scratch and impact protection.
  • More Advanced Video Features: Stereo sound, 960fps slow motion.
  • eSIM Support: Offers more flexibility with carrier choices.
  • Hi-Res Audio: For a richer audio experience.

Practical Implications: The S23 Ultra is the best choice for users seeking top-tier performance, display quality, and camera capabilities. It excels in demanding use cases such as professional photography/videography, gaming, and heavy multitasking.

Significant Trade-offs:

  • OnePlus 9 sacrifices performance, display quality and camera versatility for a lighter, more compact design and faster charging.
  • Samsung Galaxy S23 Ultra is significantly heavier and bulkier, with slightly slower charging speeds, in exchange for superior camera, processing power and display technology.

3. User Profiles & Recommendations

OnePlus 9 Ideal User:

  • Users who prioritize a lightweight and compact smartphone.
  • Those who need fast charging capabilities and wireless charging.
  • Users who appreciate a dedicated B&W lens for artistic photography.
  • Users who don't require the absolute best performance, but still want smooth operation.
  • Users on a moderate budget.

Use Cases: Daily commuters, general social media users, those who prioritize portability, users seeking a good all-around phone without premium demands.

Samsung Galaxy S23 Ultra Ideal User:

  • Power users who demand the best performance for gaming and multitasking.
  • Users who require top-notch camera capabilities for professional-grade photos and videos.
  • Those who need a large, high-quality display for media consumption and productivity.
  • Users who prioritize build quality and screen protection.
  • Users who require eSIM functionality.
  • Users who want a top-tier audio experience.
  • Users with a higher budget.

Use Cases: Professional photographers/videographers, mobile gamers, business users, heavy media consumers, users who prioritize cutting-edge technology.

4. Decision Framework

Key Questions to Consider:

  1. What is your primary use case? (Gaming, Photography, Media Consumption, Daily Commuting)
  2. How important is portability and size to you? (Do you prefer a lighter more pocketable phone or a more premium, robust phone with a larger screen).
  3. What is your budget? (Are you willing to pay a premium for the best features and performance?)

Scenario-Based Recommendations:

  • Scenario 1: Gaming & Performance - If gaming or intensive tasks are your priority, the Samsung Galaxy S23 Ultra is the clear winner due to its superior chipset and GPU.
  • Scenario 2: Photography & Videography - The Samsung Galaxy S23 Ultra excels with its 200MP main sensor, versatile telephoto lenses, and advanced video features, making it much better for photography and videography.
  • Scenario 3: Everyday Use & Portability - The OnePlus 9 is ideal for users who prioritize a lighter, more compact form factor and faster charging, especially for day-to-day tasks.
  • Scenario 4: Budget Conscious Choice- The OnePlus 9 is more affordable, offering a reasonable performance for the price point compared to the premium price of the S23 Ultra.

Final Recommendation

If I had to choose, I would choose the Samsung Galaxy S23 Ultra. While the OnePlus 9 is a very capable device, the S23 Ultra offers a far superior experience in nearly every category, with the exception of slightly slower charging speeds, and a heavier/larger form factor. The S23 Ultra's significantly better performance, display, and camera system provide a more premium user experience overall. Despite the additional bulk and cost, its versatility and top-tier capabilities justify the choice for my personal usage pattern. I would be primarily be using it for work, photography, and media consumption, and the S23 Ultra's strengths perfectly align with those needs.

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.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.