Samsung Galaxy Note20 Ultra vs. OnePlus 9 Pro: Which Flagship Reigns Supreme?

The Samsung Galaxy Note20 Ultra, representing a peak in Samsung’s S Pen-equipped flagship line, now faces competition from the OnePlus 9 Pro, a device that aimed to disrupt the market with its Hasselblad-tuned camera and blazing-fast charging. This comparison examines whether the Note20 Ultra’s mature software and S Pen integration still hold value against the OnePlus 9 Pro’s newer hardware and aggressive pricing.
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🏆 Quick Verdict

For most users, the OnePlus 9 Pro offers a more compelling package. Its Snapdragon 888 chipset, coupled with 65W charging, delivers superior performance and convenience. While the Note20 Ultra’s S Pen remains a unique feature, the OnePlus 9 Pro’s overall experience is more modern and efficient.

PHONES
Phone Names Samsung Galaxy Note20 Ultra OnePlus 9 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU
5G bands-1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 MbpsHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5G
TechnologyGSM / CDMA / HSPA / EVDO / LTEGSM / CDMA / HSPA / LTE / 5G
 CDMA2000 1xEV-DO 1, 3, 28, 41, 78, 79 SA/NSA - CN
Launch
Announced2020, August 052021, March 23
StatusAvailable. Released 2020, August 21Available. Released 2021, March 30
Body
BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), stainless steel frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions164.8 x 77.2 x 8.1 mm (6.49 x 3.04 x 0.32 in)163.2 x 73.6 x 8.7 mm (6.43 x 2.90 x 0.34 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight208 g (7.34 oz)197 g (6.95 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min) Stylus, 9ms latency (Bluetooth integration, accelerometer, gyro)IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass 5
Resolution1440 x 3088 pixels, 19.3:9 ratio (~496 ppi density)1440 x 3216 pixels, 20:9 ratio (~525 ppi density)
Size6.9 inches, 116.7 cm2 (~91.7% screen-to-body ratio)6.7 inches, 108.4 cm2 (~90.3% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, HDR10+LTPO Fluid2 AMOLED, 1B colors, 120Hz, HDR10+, 1300 nits (peak)
 Always-on display 120Hz@FHD/60Hz@QHD refresh rateAlways-on display
Platform
CPUOcta-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - GlobalOcta-core (1x3.0 GHz Kryo 585 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USAOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55
ChipsetExynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G+ (7 nm+) - USAQualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUMali-G77 MP11 - GlobalAdreno 650 - USAAdreno 660
OSAndroid 10, upgradable to Android 13, One UI 5Android 11, upgradable to Android 14, OxygenOS 14
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal256GB 8GB RAM, 256GB 12GB RAM, 512GB 8GB RAM, 512GB 12GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 3.0UFS 3.1
Main Camera
FeaturesLaser AF, LED flash, auto-HDR, panoramaLaser AF, color spectrum sensor, Hasselblad Color Calibration, dual-LED flash, HDR, panorama
Quad-48 MP, f/1.8, 23mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 8 MP, f/2.4, 77mm (telephoto), 1.0µm, PDAF, OIS, 3.3x optical zoom 50 MP, f/2.2, 14mm (ultrawide), 1/1.56", 1.0µm, AF 2 MP, f/2.4, (monochrome)
Single-16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Triple108 MP, f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, OIS 12 MP, f/3.0, 120mm (periscope telephoto), 1.0µm, PDAF, OIS, 5x optical zoom, 50x hybrid zoom 12 MP, f/2.2, 120˚, 13mm (ultrawide), 1/2.55", 1.4µm-
Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, dual pixel PDAF16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video4K@30/60fps, 1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 32-bit/384kHz audio Tuned by AKG24-bit/192kHz audio
Comms
Bluetooth5.0, A2DP, LE, aptX5.2, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEOGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioFM radio (Snapdragon model only; market/operator dependent)No
USBUSB Type-C 3.2, OTGUSB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 Samsung Wireless DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support-
Battery
Charging25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless65W wired, PD, 100% in 29 min 50W wireless, 100% in 43 min 5W reverse wireless
TypeLi-Ion 4500 mAhLi-Po 4500 mAh
Misc
ColorsMystic Bronze, Mystic Black, Mystic WhiteMorning Mist, Forest Green, Stellar Black
ModelsSM-N985F, SM-N985F/DSLE2121, LE2125, LE2123, LE2120, LE2127
PriceAbout 1250 EUR€ 246.17 / $ 264.95 / £ 287.00
SAR0.57 W/kg (head)     1.02 W/kg (body)-
SAR EU0.32 W/kg (head)     1.47 W/kg (body)-
Tests
Battery life- Endurance rating 86h
Camera- Photo / Video
Loudspeaker- -24.1 LUFS (Very good)

Samsung Galaxy Note20 Ultra

  • Integrated S Pen for productivity and creativity
  • Samsung DeX for desktop-like experience
  • Mature software ecosystem with long-term support

  • Exynos 990 chipset can throttle under load
  • Slower charging speeds (25W wired)
  • Potentially less vibrant display compared to OnePlus 9 Pro

OnePlus 9 Pro

  • Snapdragon 888 offers superior performance
  • 65W wired and 50W wireless charging are incredibly fast
  • Hasselblad-tuned camera delivers natural color reproduction

  • Lacks integrated stylus support
  • OxygenOS, while clean, has seen changes in recent years
  • Software update longevity may be shorter than Samsung

Display Comparison

The OnePlus 9 Pro boasts a brighter display, reaching 859 nits measured, compared to the Note20 Ultra’s unspecified peak brightness (though typically around 700-800 nits). Both utilize AMOLED technology, but the OnePlus 9 Pro’s higher peak brightness translates to better visibility in direct sunlight. While both likely feature adaptive refresh rates, the OnePlus 9 Pro’s panel is generally considered more color accurate and offers a more fluid viewing experience. The Note20 Ultra’s curved display, while aesthetically pleasing, can introduce accidental touches, a problem minimized by the OnePlus 9 Pro’s more restrained curvature.

Camera Comparison

The OnePlus 9 Pro’s collaboration with Hasselblad resulted in a camera system focused on natural color science, a departure from Samsung’s typically saturated image processing. While both phones offer versatile camera setups, the OnePlus 9 Pro’s larger main sensor (details unspecified in provided data, but generally larger than the Note20 Ultra’s) captures more light, resulting in better low-light performance. The Note20 Ultra’s zoom capabilities are strong, but the OnePlus 9 Pro’s image processing often produces more realistic and detailed results. The inclusion of OIS on both devices aids in stable video recording.

Performance

The core difference lies in the chipsets. The OnePlus 9 Pro’s Snapdragon 888 (5nm) significantly outperforms the Note20 Ultra’s Exynos 990 (7nm+) in most benchmarks, particularly in GPU-intensive tasks. The Snapdragon 888’s Cortex-X1 prime core provides a substantial performance boost. While the USA variant of the Note20 Ultra receives the Snapdragon 865+, it still lags behind the 888. The Exynos 990 has been known to exhibit thermal throttling under sustained load, a problem less prevalent on the more efficient Snapdragon 888. Both phones feature ample RAM, but the OnePlus 9 Pro benefits from the newer chipset’s improved memory controller.

Battery Life

Both devices achieve an endurance rating of 86h, suggesting similar real-world battery life despite differing battery capacities (not specified in provided data). However, the OnePlus 9 Pro’s charging capabilities are dramatically superior. 65W wired charging delivers a full charge in just 29 minutes, while the Note20 Ultra’s 25W charging takes considerably longer. The OnePlus 9 Pro also offers 50W wireless charging, significantly faster than the Note20 Ultra’s 15W wireless charging. This charging speed advantage is a major win for OnePlus.

Buying Guide

Buy the Samsung Galaxy Note20 Ultra if you absolutely require the S Pen for productivity or creative tasks and value Samsung’s DeX desktop experience. Buy the OnePlus 9 Pro if you prioritize raw performance, incredibly fast charging, and a refined camera system with a focus on natural color reproduction. The OnePlus 9 Pro is the better choice for gamers and power users.

Frequently Asked Questions

❓ Does the Exynos 990 in the Note20 Ultra overheat during extended gaming sessions?
Yes, the Exynos 990 is known to throttle under sustained load, leading to reduced performance during prolonged gaming. While not catastrophic, users may experience frame drops and increased heat. The Snapdragon 888 in the OnePlus 9 Pro is more thermally efficient and less prone to throttling.
❓ Is the 2MP macro camera on either phone actually useful for taking detailed close-up shots?
Generally, 2MP macro cameras on flagship phones are more of a marketing feature than a genuinely useful tool. Image quality is often subpar, lacking detail and sharpness. The OnePlus 9 Pro and Note20 Ultra are better served utilizing their primary sensors for close-up shots with digital zoom.
❓ Can the OnePlus 9 Pro consistently maintain 90fps in demanding games like PUBG?
The Snapdragon 888 in the OnePlus 9 Pro is capable of maintaining high frame rates in PUBG, often exceeding 60fps and approaching 90fps with optimized settings. However, sustained performance will depend on the game’s optimization and the phone’s thermal management. The Note20 Ultra’s Exynos 990 may struggle to maintain consistent high frame rates.
❓ How does the S Pen integration on the Note20 Ultra benefit everyday use beyond note-taking?
The S Pen offers features like Air Actions for remote control of the phone, screen-off memo for quick notes, and handwriting-to-text conversion. It also enhances productivity with features like Smart Select for capturing portions of the screen and AR Doodle for adding creative annotations to photos and videos.