OnePlus 9 vs Samsung Galaxy Z Flip4 - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9
OnePlus 9
Oneplus

General

Launch Date March 26, 2021 August 25, 2022
Release Year 2021 2022

Physical

Volume 103.29 cm³ 81.96 cm³
Screen Size to Weight Ratio 3.41 "/g 3.58 "/g
Weight 192 g 187 g
Height 160 mm 165.2 mm
Width 74.2 mm 71.9 mm
Thickness 8.7 mm 6.9 mm
Foldable Design No Yes
Available Colors
  • Winter Mist
  • Arctic Sky
  • Astral Black
  • Red
  • Yellow
  • Blue
  • White
  • Graphite
  • Navy
  • Pink Gold
  • Bora Purple
  • Khaki

Display

Screen Size 6.55 " 6.7 "
Resolution 1080 x 2400 1080 x 2640
Aspect Ratio 20:9 22:9
Screen-to-Body Ratio 87.2 % 85.4 %
Pixel Density 402 PPI 426 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1100 nits 1200 nits

Hardware

Battery Capacity per Screen Area 104.89 mAh/in² 82.42 mAh/in²
Battery Density 43.57 mAh/cm³ 45.15 mAh/cm³
Battery Capacity 4500 mAh 3700 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Adreno 660 Adreno 730

Connectivity

USB Version 3.1 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.1, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 13 14

Comparison Summary

Smartphone Comparison: OnePlus 9 vs. Samsung Galaxy Z Flip4

1. Specifications Comparison

FeatureOnePlus 9Samsung Galaxy Z Flip4Practical Impact
Design
Form FactorStandardFoldableZ Flip4 offers a unique, compact form factor when folded, while OnePlus 9 has a traditional design.
Dimensions160 × 74.2 × 8.7 mm165.2 × 71.9 × 6.9 mmZ Flip4 is taller and thinner but less wide, OnePlus 9 has a larger overall volume.
Weight192g187gZ Flip4 is slightly lighter, potentially more comfortable for extended use.
Display
Size6.55"6.7"Z Flip4 has a slightly larger display, offering a bit more screen real estate for viewing content.
Resolution1080x24001080x2640Z Flip4 has a slightly sharper screen due to higher pixel count, resulting in better detail.
PPI402426Z Flip4 has moderately higher pixel density, potentially resulting in slightly sharper text and images.
TechnologyAMOLEDOnePlus 9's AMOLED display offers deeper blacks, better contrast, and vibrant colors, but Samsung is not specified.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1100 nits1200 nitsZ Flip4 offers slightly better outdoor visibility due to higher brightness.
Performance
ChipsetSnapdragon 888 5G (5 nm)Snapdragon 8+ Gen 1 (4 nm)Z Flip4's newer chip offers improved performance and efficiency compared to the OnePlus 9.
Antutu Score880,9001,050,371Z Flip4 demonstrates significantly better performance in benchmarks, indicating faster overall performance.
GPUAdreno 660Adreno 730Z Flip4's GPU offers better graphics processing for gaming and demanding applications.
Battery
Capacity4500mAh3700mAhOnePlus 9 has a significantly larger battery, likely providing longer battery life.
Charging65W Fast Charging25W Fast ChargingOnePlus 9 charges much faster, allowing for quick top-ups.
Charging Features15W Wireless Charging, Non-removableBypass Charging, Reverse charging, Non-removable, 50% in 30 min, Fast wireless charging 15W, Reverse wireless charging 4.5WZ Flip4 has a more versatile charging system including bypass, reverse, and fast wireless.
Camera
Main Camera48MP, f/1.79, 1/1.4"12.2MP, f/1.8, 1/2.55"OnePlus 9 has a higher resolution and larger sensor, but Z Flip4 has larger pixels for better light capture; OnePlus 9 has a wider aperture.
Selfie Camera16MP, f/2.4, 1/3.13"10MP, f/2.4, 1/3.2"OnePlus 9 has a higher resolution selfie camera and a slightly larger sensor.
Wide Angle Lens50MP, f/2.2, 1/1.56"13MP, 1/3.06"OnePlus 9's wide-angle lens offers much higher resolution and a larger sensor for higher-quality ultrawide images.
Black & White2MPNoneOnePlus 9 has a dedicated black and white sensor for artistic shots.
Video RecordingUp to 8K@30fpsUp to 4K@60fpsOnePlus 9 can record in higher 8K resolution; Z Flip4 has OIS, but not specified on OnePlus.
DXOMARKNot TestedMobile (112)Samsung Galaxy Z Flip4 has a more thoroughly reviewed camera with higher results.
Camera FeaturesTriple Camera, Digital image stabilization, Ultra stable video, Manual focus, Contrast detection autofocus (CDAF), Night Mode, RAW 12 bitsDual Camera, Tracking AF, Optical Stabilization (OIS)OnePlus 9 has more advanced manual video features, while Z Flip4 has OIS for improved stability.
Software
OSAndroid 11, Max 13Android 12, Max 14Z Flip4 has a newer version of Android and will be updated to a newer version.
Connectivity
Wi-FiWi-Fi 6 (802.11ax)Wi-Fi 6 (802.11ax)Both support the latest Wi-Fi standards for fast internet speeds.
BluetoothBluetooth 5.2Bluetooth 5.1OnePlus 9 has a slightly newer Bluetooth version, but both are capable of low-energy connectivity.
GPSGPS (L1+L5), BeiDou (B2)GPS (L1+L5), GLONASS (L1)Both have dual-band GPS for more accurate location data; differences may be relevant for niche applications.
SIMDual Nano SIMDual Nano SIM + eSIMZ Flip4 offers more flexibility with an eSIM for digital carrier switching in addition to a physical SIM.
Storage
Internal Storage128 GB or 256 GB128 GB or 256 GB or 512 GBZ Flip4 offers a higher maximum storage capacity for users with large media libraries.
RAM8 GB or 12 GB8 GBOnePlus 9 offers more RAM for better multitasking capabilities, though base amount is the same.
ExpandableNoNoNeither phone supports expandable storage.
Audio
Audio QualityDolby Atmos, Noise cancellation microphone, Stereo Speakers, 3 microphonesStereo SpeakersOnePlus 9 offers a more immersive audio experience with Dolby Atmos and noise cancellation for calls.
Security
Fingerprint SensorBasicSide-mountedSamsung's side mounted is usually more convienent
Build Quality
Screen ProtectionGorilla Glass 5Gorilla Glass VictusZ Flip4 has superior scratch and drop resistance.
Sensors
SensorsAccelerometer, Compass, Gyroscope, Proximity, FingerprintAccelerometer, Compass, Gyroscope, Barometer, Gravity, Hall, Geomagnetic, Proximity, FingerprintZ Flip4 offers a broader range of sensors, which might be useful in specific apps or contexts.

2. Key Differences Analysis

OnePlus 9 Advantages:

  • Larger Battery: Offers significantly longer battery life due to its larger 4500mAh battery, which means less frequent charging.
  • Faster Charging: 65W charging allows for much quicker top-ups, essential for users with busy schedules.
  • Superior Main and Wide Camera Sensors: The higher megapixel count, larger sensors and wider aperture of the main and wide angle lens on the OnePlus 9 may produce better image quality and more flexibility for editing, especially in low light.
  • More RAM: Up to 12GB, better for heavy users
  • Dolby Atmos: Provides more immersive audio quality with support for Dolby Atmos, and a noise cancellation microphone for calls.
  • Manual Video Controls: With features such as manual focus and RAW 12 bits, the OnePlus 9 gives users more control for professional video.
  • Black and white lens: Additional lens that gives a different type of photo.

Samsung Galaxy Z Flip4 Advantages:

  • Foldable Design: Offers a unique, compact form factor when folded, making it more pocketable.
  • Newer Chipset: The Snapdragon 8+ Gen 1 provides improved performance and efficiency, making it smoother for daily use.
  • Better Screen Protection: Uses Gorilla Glass Victus, which provides superior protection against scratches and drops.
  • More Storage Options: It is available in up to 512GB, providing more space for media.
  • Bypass Charging, and Reverse Wireless: These features enhance charging and power options.
  • More Comprehensive Sensor Suite: It includes a barometer and a geomagnetic sensor, which could be used for specialized apps.
  • eSIM support: Offers more flexibility for carrier options.
  • OIS: The camera comes with optical image stabilization
  • Up to date OS: The software will be updated to a newer version.
  • Better Camera Performance: While the sensors are smaller, the Z Flip4's camera received a score from DXOMark, indicating higher performance.

Significant Trade-offs:

  • The OnePlus 9 prioritizes battery life and charging speed at the expense of a foldable design and a more advanced processor.
  • The Samsung Galaxy Z Flip4 offers a premium, foldable experience with improved performance but has a smaller battery, slower charging, and more limited camera.

3. User Profiles & Recommendations

OnePlus 9 Ideal Users:

  • Power Users: Those who require long battery life, faster charging, and smooth performance for day to day tasks.
  • Photography Enthusiasts: Users who want more flexibility in image capture, more detailed images with larger sensors, and manual video control.
  • Value Seekers: Users who prioritize performance and camera quality over cutting-edge design and features.
  • Audio Enthusiasts: Users who prioritize audio quality and want an immersive sound experience.

Use Cases:

  • Long days of work or travel where frequent charging is not possible.
  • Capturing high-quality photos and videos.
  • Gaming and heavy multitasking.
  • Listening to music with enhanced audio.

Samsung Galaxy Z Flip4 Ideal Users:

  • Fashion-Conscious Users: Those who prioritize a unique, stylish design and a compact form factor.
  • Tech Enthusiasts: Users who enjoy exploring cutting-edge technology and foldable devices.
  • Performance Seekers: Those who prioritize faster, smoother performance with the latest chipset.
  • Users Prioritizing Durability: Those who want enhanced durability with more advanced screen protection.

Use Cases:

  • A phone that can fit easily into small pockets or bags.
  • Quick photos and videos with stabilization.
  • Using modern features such as bypass and reverse wireless charging.
  • Using the latest android version.

4. Decision Framework

Key Questions to Consider:

  1. What is more important, battery life/charging speed or a cutting-edge foldable design?
  2. Do you need the best camera hardware on a traditional smartphone or prioritize a newer chipset, and versatility?
  3. Do you value a unique foldable design and pocketability or a traditional smartphone experience?

Scenario-Based Recommendations:

  • For the power user who needs all-day battery: The OnePlus 9 is the better choice with its larger battery and faster charging.
  • For the fashion-forward user who values unique design: The Samsung Galaxy Z Flip4 is the better pick with its foldable form factor and compact design.
  • For users who need the best possible performance: The Samsung Galaxy Z Flip4, which comes with a newer chipset, is the best option.
  • For the photography enthusiasts who want the best possible camera hardware: The OnePlus 9 is likely better due to its larger sensors, though the Samsung offers OIS.

My Choice

If I were choosing between these two phones, I would lean towards the OnePlus 9. My priority is a long-lasting battery and fast charging capabilities as I often find myself away from a power source for extended periods. I also value the camera specifications of the OnePlus 9 more as I would prefer to take the more detailed photos that larger sensors provide, with manual control features for more professional video. Additionally, I enjoy better audio quality, and the OnePlus 9 with Dolby Atmos, noise cancelling and 3 microphones edges it out in that regard. While the foldable design of the Z Flip4 is intriguing and a better screen protector is nice, these factors do not outweigh the practical benefits of a larger battery, faster charging, and better camera hardware for my usage.

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.