Asus ROG Phone 5 vs. OnePlus 9 Pro: A Deep Dive into Gaming and Everyday Performance

The Asus ROG Phone 5 and OnePlus 9 Pro represent distinct philosophies in the flagship Android space. The ROG Phone 5 is unapologetically geared towards mobile gaming, prioritizing performance and battery life, while the OnePlus 9 Pro aims for a more balanced experience, blending high-end specs with a refined camera system and everyday usability. This comparison dissects their strengths and weaknesses to determine which device best suits your needs.
Phones Images

🏆 Quick Verdict

For the average user prioritizing a well-rounded experience with a strong camera, the OnePlus 9 Pro is a compelling choice. However, the Asus ROG Phone 5 decisively wins for gamers and power users, offering significantly superior battery endurance and a gaming-focused feature set.

PHONES
Phone Names Asus ROG Phone 5 OnePlus 9 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - Version 1HSDPA 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, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66, 71 - Version 11, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU
5G bands1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA - Version 11, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 1400/150 Mbps, 5G 4 Gbps DLHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 1, 3, 7, 8, 20, 28, 38, 41, 77, 78, 79 SA/NSA - Version 2, Version 31, 3, 28, 41, 78, 79 SA/NSA - CN
Launch
Announced2021, March 102021, March 23
StatusAvailable. Released 2021, April 26Available. Released 2021, March 30
Body
BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions172.8 x 77.3 x 10.3 mm (6.80 x 3.04 x 0.41 in)163.2 x 73.6 x 8.7 mm (6.43 x 2.90 x 0.34 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight238 g (8.40 oz)197 g (6.95 oz)
 RGB light panel (on the back) Pressure sensitive zones (Gaming triggers)IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass 5
Resolution1080 x 2448 pixels (~395 ppi density)1440 x 3216 pixels, 20:9 ratio (~525 ppi density)
Size6.78 inches, 109.5 cm2 (~82.0% screen-to-body ratio)6.7 inches, 108.4 cm2 (~90.3% screen-to-body ratio)
TypeAMOLED, 1B colors, 144Hz, HDR10+, 800 nits (typ), 1200 nits (peak)LTPO Fluid2 AMOLED, 1B colors, 120Hz, HDR10+, 1300 nits (peak)
 -Always-on display
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, ROG UIAndroid 11, upgradable to Android 14, OxygenOS 14
Memory
Card slotNoNo
Internal128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesLED flash, 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
Triple64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 13 MP, f/2.4, 11mm, 125˚ (ultrawide) 5 MP (macro)-
Video8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 720p@480fps; gyro-EIS8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesPanorama, HDRHDR
Single24 MP, f/2.5, 27mm (wide), 0.9µm16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker Yes, with DTS:X stereo speakers (2 dedicated amplifiers)Yes, with stereo speakers
 24-bit/192kHz audio24-bit/192kHz audio
Comms
Bluetooth5.2, A2DP, LE, aptX HD, aptX Adaptive5.2, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBUSB Type-C 3.1 (side), USB Type-C 2.0 (bottom), OTG, accessory connectorUSB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging65W wired, PD3.0, QC5, 70% in 30 min, 100% in 52 min 10W reverse wired65W wired, PD, 100% in 29 min 50W wireless, 100% in 43 min 5W reverse wireless
TypeLi-Po 6000 mAhLi-Po 4500 mAh
Misc
ColorsPhantom Black, Storm WhiteMorning Mist, Forest Green, Stellar Black
ModelsZS673KS, ZS673KS-1B048IN, ASUS_I005DB, ASUS_I005DA, I005DA, I005DBLE2121, LE2125, LE2123, LE2120, LE2127
PriceAbout 370 EUR€ 246.17 / $ 264.95 / £ 287.00
Tests
Battery life Endurance rating 110h Endurance rating 86h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal)-
Loudspeaker -24.0 LUFS (Very good) -24.1 LUFS (Very good)
Performance AnTuTu: 718864 (v8) GeekBench: 14536 (v4.4), 3745 (v5.1) GFXBench: 72fps (ES 3.1 onscreen)-

Asus ROG Phone 5

  • Exceptional battery life (110h endurance)
  • Superior sustained gaming performance
  • Gaming-focused features (AirTriggers)

  • Less refined camera system
  • Slower wired charging than OnePlus 9 Pro

OnePlus 9 Pro

  • Excellent camera system with Hasselblad tuning
  • Fast 65W wired and 50W wireless charging
  • More balanced overall experience

  • Shorter battery life (86h endurance)
  • More prone to thermal throttling during extended gaming

Display Comparison

Both the Asus ROG Phone 5 and OnePlus 9 Pro feature excellent displays, both reaching approximately 800+ nits of peak brightness (806 for ROG Phone 5, 859 for OnePlus 9 Pro). While the OnePlus 9 Pro edges out the ROG Phone 5 in peak brightness, the difference is unlikely to be noticeable in most real-world scenarios. Both utilize AMOLED panels for vibrant colors and deep blacks. However, the ROG Phone 5’s display is optimized for gaming with a higher refresh rate and potentially lower touch latency, though specific latency figures aren’t provided. The infinite contrast ratio on both devices ensures excellent visual fidelity.

Camera Comparison

Both phones offer capable camera systems, but their approaches differ. The OnePlus 9 Pro, developed in partnership with Hasselblad, prioritizes color accuracy and natural image processing. While specific sensor details are missing, the OnePlus 9 Pro likely features a larger main sensor and more advanced image stabilization. The ROG Phone 5’s camera is competent but less emphasized, serving as a secondary feature to its gaming prowess. The OnePlus 9 Pro’s camera system is geared towards photography enthusiasts, while the ROG Phone 5’s camera is adequate for casual use.

Performance

Both devices are powered by the Qualcomm SM8350 Snapdragon 888 5G (5 nm) chipset, featuring the same Octa-core CPU configuration. This means raw processing power is largely equivalent. However, the ROG Phone 5’s cooling system is significantly more robust, designed to sustain peak performance for longer durations during demanding gaming sessions. The OnePlus 9 Pro, while capable, is more likely to experience thermal throttling under prolonged heavy load. While RAM configurations aren’t specified, the ROG Phone 5 typically offers more RAM options, further aiding multitasking and gaming performance. The ROG Phone 5’s focus on sustained performance gives it an edge for demanding users.

Battery Life

The Asus ROG Phone 5 boasts a significant advantage in battery endurance, achieving a measured 110 hours compared to the OnePlus 9 Pro’s 86 hours. This translates to a full day or more of heavy use for the ROG Phone 5, even with demanding gaming. Both support 65W wired charging, with the OnePlus 9 Pro achieving a full charge in 29 minutes, slightly faster than the ROG Phone 5’s 52 minutes. However, the OnePlus 9 Pro also offers 50W wireless charging, a feature absent on the ROG Phone 5. The ROG Phone 5’s larger battery capacity and superior endurance make it the clear winner for users prioritizing battery life.

Buying Guide

Buy the Asus ROG Phone 5 if you need maximum battery life for extended gaming sessions, prioritize raw performance over camera versatility, and appreciate gaming-specific features like AirTriggers. Buy the OnePlus 9 Pro if you prefer a more polished and versatile camera system, value fast wireless charging, and desire a flagship experience that excels in everyday tasks alongside occasional gaming.

Frequently Asked Questions

❓ Does the ROG Phone 5 get excessively hot during prolonged gaming sessions?
While the Snapdragon 888 is known to generate heat, the ROG Phone 5’s advanced cooling system – including a vapor chamber and strategically placed heat sinks – effectively mitigates thermal throttling, allowing for sustained peak performance for longer periods compared to the OnePlus 9 Pro.
❓ How does the OnePlus 9 Pro’s 50W wireless charging compare to the ROG Phone 5’s lack of wireless charging?
The OnePlus 9 Pro’s 50W wireless charging is a significant convenience feature, fully charging the device in approximately 43 minutes. The ROG Phone 5 lacks wireless charging entirely, requiring a wired connection for replenishment. This is a key consideration for users who frequently utilize wireless charging.
❓ Is the difference in charging speed (29 mins for OnePlus 9 Pro vs 52 mins for ROG Phone 5) significant in daily use?
While the OnePlus 9 Pro charges faster, the 23-minute difference isn't usually a major inconvenience. The ROG Phone 5's superior battery life often means you won't need to charge as frequently, offsetting the slower charging speed.