OnePlus 9 vs Sony Xperia 1 III: Which Snapdragon 888 Flagship Reigns Supreme?

The OnePlus 9 and Sony Xperia 1 III represent divergent philosophies in the flagship Android space. The OnePlus 9 aimed for a compelling price-to-performance ratio, while the Xperia 1 III targeted content creators and enthusiasts with a focus on pro-level features. Both leverage the Qualcomm Snapdragon 888, but their implementations and surrounding hardware differ significantly, making a direct comparison crucial for discerning buyers.
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🏆 Quick Verdict

For the average user prioritizing value and rapid charging, the OnePlus 9 emerges as the winner. Its significantly brighter display and 65W charging are compelling advantages. However, content creators and those valuing a more refined, cinematic experience will find the Xperia 1 III’s feature set more appealing.

PHONES
Phone Names OnePlus 9 Sony Xperia 1 III
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 66 - Europe
5G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - Europe
SpeedHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
 1, 3, 28, 41, 78, 79 SA/NSA - CN SA/NSA/Sub6/mmWave - USA (specific)
Launch
Announced2021, March 232021, April 14
StatusAvailable. Released 2021, March 26Available. Released 2021, August 25
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass 6), aluminum frame
Dimensions160 x 74.2 x 8.7 mm (EU/NA)160 x 73.9 x 8.1 mm (IN/CN)165 x 71 x 8.2 mm (6.50 x 2.80 x 0.32 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight192 g (EU/NA)183 g (IN/CN) (6.46 oz)186 g / 187.1 g (mmWave) (6.56 oz)
 IP68 (T-Mobile version only)IP65/IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~402 ppi density)1644 x 3840 pixels, 21:9 ratio (~643 ppi density)
Size6.55 inches, 103.6 cm2 (~87.6% screen-to-body ratio)6.5 inches, 98.6 cm2 (~84.2% screen-to-body ratio)
TypeFluid AMOLED, 120Hz, HDR10+, 1100 nits (peak)OLED, 1B colors, 120Hz, HDR BT.2020
 Always-on displayRuns at 1096 x 2560 pixels except for select use cases
Platform
CPUOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm SM8350 Snapdragon 888 5G (5 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUAdreno 660Adreno 660
OSAndroid 11, upgradable to Android 13, OxygenOS 13Android 11, upgradable to Android 13
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 8GB RAM, 256GB 12GB RAM256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.1UFS 3.X
Main Camera
FeaturesHasselblad Color Calibration, color spectrum sensor, dual-LED flash, HDR, panoramaZeiss optics, Zeiss T* lens coating, color spectrum sensor, LED flash, panorama, HDR, eye tracking
Single16 MP, f/2.4, (wide), 1/3.06", 1.0µm8 MP, f/2.0, 24mm (wide), 1/4", 1.12µm
Triple48 MP, f/1.8, 23mm (wide), 1/1.43", 1.12µm, multi-directional PDAF 50 MP, f/2.2, 14mm (ultrawide), 1/1.56", 1.0µm, AF 2 MP, f/2.4, (monochrome)12 MP, f/1.7, 24mm (wide), 1/1.7", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.3, 70mm (telephoto), f/2.8, 105mm (telephoto), 1/2.9", dual pixel PDAF, 3x/4.4x optical zoom, OIS 12 MP, f/2.2, 124˚, 16mm (ultrawide), 1/2.6", dual pixel PDAF 0.3 MP, TOF 3D, (depth)
Video8K@30fps, 4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS4K@24/25/30/60/120fps HDR, 1080p@30/60/120fps; 5-axis gyro-EIS, OIS
Selfie camera
FeaturesHDRHDR
Single16 MP, f/2.4, (wide), 1/3.06", 1.0µm8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm
Video1080p@30fps, gyro-EIS1080p@30fps, 5-axis gyro-EIS
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio24-bit/192kHz audio Dynamic vibration system
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.2, A2DP, LE, aptX HD, aptX Adaptive
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)GPS, GLONASS, BDS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C 3.1, OTGUSB Type-C 3.1, OTG, video output
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, barometer, compass
 -Native Sony Alpha camera support
Battery
Charging65W wired, PD, 100% in 29 min 15W wireless (EU/NA)30W wired, PD, 50% in 30 min Wireless Reverse wireless
TypeLi-Po 4500 mAhLi-Po 4500 mAh
Misc
ColorsWinter Mist, Arctic Sky, Astral BlackFrosted Black, Frosted Gray, Frosted Purple
ModelsLE2113, LE2111, LE2110, LE2117, LE2115XQBC62/V, XQBC52V.UKCX, SO-51B, SOG03, A101SO, XQ-BC62, XQ-BC72, XQ-BC52, XQ-BC01, XQ-BC11, XQ-BC21, XQ-BC72
Price$ 145.00 / £ 200.00 / € 249.99€ 505.26 / $ 903.43
Tests
Battery life Endurance rating 87h Endurance rating 82h
Camera Photo / Video Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker -24.5 LUFS (Very good) -26.5 LUFS (Good)
Performance- AnTuTu: 607423 (v8) GeekBench: 3515 (v5.1) GFXBench: 54fps (ES 3.1 onscreen)

OnePlus 9

  • Significantly faster 65W charging
  • Brighter display for outdoor visibility
  • More affordable price point

  • Lacks wireless charging
  • Potentially less refined camera experience

Sony Xperia 1 III

  • Wireless and reverse wireless charging
  • Professional-grade camera features
  • Potentially better sustained performance due to thermal design

  • Slower 30W charging
  • Dimmer display compared to OnePlus 9
  • Higher price

Display Comparison

The display is a key differentiator. The OnePlus 9 boasts a measured peak brightness of 821 nits, significantly outshining the Xperia 1 III’s 620 nits. This translates to superior visibility in direct sunlight. While the Xperia 1 III touts an infinite contrast ratio, this is typical of OLED panels and doesn’t necessarily equate to a better viewing experience than the OnePlus 9. The lack of specific refresh rate data for the Xperia 1 III means we can't assess motion clarity, but the OnePlus 9's display is likely to be more vibrant and easily viewable outdoors.

Camera Comparison

Both phones offer capable camera systems, but their approaches differ. While both are listed as 'Photo / Video', the Xperia 1 III’s emphasis on manual controls and professional features caters to videographers. The lack of detailed sensor information for either phone makes a direct comparison difficult. However, Sony’s history suggests a focus on image quality and color science, potentially offering a more natural look. The OnePlus 9 likely prioritizes computational photography for quick, shareable results. The absence of details regarding OIS and lens apertures prevents a deeper analysis.

Performance

Both devices are powered by the Qualcomm SM8350 Snapdragon 888 5G (5 nm) chipset, featuring the same Octa-core CPU configuration. Therefore, raw processing power will be nearly identical. However, thermal management could vary. While neither device’s specs reveal specific cooling solutions, Sony’s focus on sustained performance for video recording suggests a potentially more robust thermal design. Both utilize LPDDR5 RAM, but the speed isn't specified, making it difficult to determine a performance edge. Real-world performance will likely be similar for most tasks, but prolonged intensive workloads might reveal differences in sustained performance.

Battery Life

The OnePlus 9 has an endurance rating of 87 hours, slightly exceeding the Xperia 1 III’s 82 hours. However, charging speeds are where the OnePlus 9 truly shines. Its 65W wired charging can reach 100% in just 29 minutes, a massive advantage over the Xperia 1 III’s 30W charging, which only achieves 50% in 30 minutes. The Xperia 1 III offers wireless and reverse wireless charging, features absent on the OnePlus 9, providing added convenience for compatible devices. The faster charging of the OnePlus 9 mitigates the slightly smaller battery capacity.

Buying Guide

Buy the OnePlus 9 if you need a fast-charging, bright-screened phone for everyday use, gaming, and general productivity. It’s the ideal choice for users who want flagship performance without a flagship price tag. Buy the Sony Xperia 1 III if you prioritize a professional-grade camera experience, a more immersive multimedia consumption experience, and don't mind slower charging in exchange for a feature-rich ecosystem geared towards content creation.

Frequently Asked Questions

❓ Does the Snapdragon 888 in either phone exhibit significant thermal throttling during extended gaming sessions?
While both phones use the Snapdragon 888, which is known to run warm, the Xperia 1 III's potential for a more robust cooling system (based on Sony's focus on video recording) *might* lead to slightly less throttling during prolonged gaming. However, without detailed thermal testing, it's difficult to say definitively.
❓ Is the lack of a dedicated telephoto lens on the OnePlus 9 a significant drawback for photography?
The absence of a dedicated telephoto lens means the OnePlus 9 relies on digital zoom, which can result in reduced image quality at higher magnification levels. Users who frequently shoot zoomed-in photos may find the Xperia 1 III, if equipped with a telephoto lens (spec data unavailable), a better choice.
❓ How does the charging speed of the OnePlus 9 compare to other flagship phones?
The OnePlus 9's 65W charging is exceptionally fast, significantly exceeding the charging speeds of most other flagship phones, including Samsung and Google's offerings. It allows for a full charge in under 30 minutes, providing a substantial convenience advantage.