OnePlus 9 vs. Asus ROG Phone 5s: A Deep Dive into Performance and Features

The OnePlus 9 aimed to deliver a flagship experience at a competitive price, while the Asus ROG Phone 5s unapologetically targets mobile gamers. This comparison dissects their core differences, focusing on performance, battery, and display to determine which device offers the best value for your specific needs. The ROG Phone 5s represents a more focused, gaming-centric approach, while the OnePlus 9 attempts broader appeal.
Phones Images

🏆 Quick Verdict

For the average user prioritizing a balanced experience, the OnePlus 9 remains a solid choice. However, the Asus ROG Phone 5s is the clear winner for gamers and power users, thanks to its slightly more powerful Snapdragon 888+ and gaming-focused features. The ROG Phone 5s's faster charging also provides a convenience edge.

PHONES
Phone Names OnePlus 9 Asus ROG Phone 5s
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) / 1800 / 1900 / 2100 - Version 1
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, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66, 71 - Version 1
5G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA - Version 1
SpeedHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 1400/150 Mbps, 5G 4 Gbps DL
TechnologyGSM / CDMA / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
 1, 3, 28, 41, 78, 79 SA/NSA - CN2, 3, 5, 7, 12, 20, 25, 28, 38, 40, 66, 71, 77, 78, 79 SA/NSA - Version 4
Launch
Announced2021, March 232021, August 16
StatusAvailable. Released 2021, March 26Available. Released 2021, August 26
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frame
Dimensions160 x 74.2 x 8.7 mm (EU/NA)160 x 73.9 x 8.1 mm (IN/CN)172.8 x 77.3 x 9.9 mm (6.80 x 3.04 x 0.39 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight192 g (EU/NA)183 g (IN/CN) (6.46 oz)238 g (8.40 oz)
 IP68 (T-Mobile version only)RGB light panel (on the back) Pressure sensitive zones (Gaming triggers)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~402 ppi density)1080 x 2448 pixels (~395 ppi density)
Size6.55 inches, 103.6 cm2 (~87.6% screen-to-body ratio)6.78 inches, 109.5 cm2 (~82.0% screen-to-body ratio)
TypeFluid AMOLED, 120Hz, HDR10+, 1100 nits (peak)AMOLED, 1B colors, 144Hz, HDR10+, 800 nits (typ), 1200 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 (1x2.99 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, ROG UI
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 16GB RAM, 512GB 18GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesHasselblad Color Calibration, color spectrum sensor, dual-LED flash, HDR, panoramaLED flash, HDR, panorama
Single16 MP, f/2.4, (wide), 1/3.06", 1.0µm-
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)64 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@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 720p@480fps; gyro-EIS
Selfie camera
FeaturesHDRPanorama, HDR
Single16 MP, f/2.4, (wide), 1/3.06", 1.0µm24 MP, f/2.5, 27mm (wide), 0.9µm
Video1080p@30fps, gyro-EIS1080p@30fps
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers (2 amplifiers)
 24-bit/192kHz audio24-bit/192kHz audio
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 (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 3.1, OTGUSB Type-C 3.1 (side), USB Type-C 2.0 (bottom), OTG, accessory connector
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging65W wired, PD, 100% in 29 min 15W wireless (EU/NA)65W wired, PD3.0, QC5, 70% in 30 min, 100% in 52 min 10W reverse wired
TypeLi-Po 4500 mAhLi-Po 6000 mAh
Misc
ColorsWinter Mist, Arctic Sky, Astral BlackPhantom Black, Storm White
ModelsLE2113, LE2111, LE2110, LE2117, LE2115ZS676KS
Price$ 145.00 / £ 200.00 / € 249.99About 1030 EUR
Tests
Battery life Endurance rating 87h -
Camera Photo / Video-
Loudspeaker -24.5 LUFS (Very good) -

OnePlus 9

  • Faster initial wired charging (29 mins to 100%)
  • Sleek and more conventional design
  • Potentially more versatile camera system (based on brand history)

  • Slightly less powerful chipset (Snapdragon 888 vs 888+)
  • Lacks gaming-specific features
  • Limited battery information beyond endurance rating

Asus ROG Phone 5s

  • More powerful chipset (Snapdragon 888+)
  • Optimized for gaming with higher refresh rate display (typically)
  • Potentially better thermal management for sustained performance

  • Slower full charge time (52 mins)
  • More aggressive, gaming-focused design
  • Camera details are limited

Display Comparison

Both phones utilize high-quality displays, but detailed specifications are limited for the OnePlus 9. The OnePlus 9 boasts a measured peak brightness of 821 nits, which is respectable, but the ROG Phone 5s likely matches or exceeds this. The ROG Phone 5s benefits from a higher refresh rate (typically 144Hz, though not specified in the data) geared towards smoother gaming visuals, a feature absent from the OnePlus 9's specifications. While the OnePlus 9 likely offers excellent color accuracy, the ROG Phone 5s's display is optimized for responsiveness and reduced motion blur during fast-paced games.

Camera Comparison

Both devices feature capable cameras, but the provided data only indicates 'Photo / Video' capabilities for the OnePlus 9, lacking specifics. The ROG Phone 5s, while also lacking detailed specs, benefits from Asus’s image processing expertise. Given the ROG Phone 5s’s focus on gaming, its camera system is likely tuned for quick capture and social sharing, while the OnePlus 9, historically, has prioritized color science and detail. Without sensor size or aperture information, a definitive camera comparison is impossible, but the OnePlus 9 likely offers a more versatile photographic experience based on brand reputation.

Performance

The Asus ROG Phone 5s gains a slight edge with its Qualcomm SM8350 Snapdragon 888+ 5G chipset, clocked at 2.99 GHz, compared to the OnePlus 9’s Snapdragon 888 at 2.84 GHz. While both utilize the same Octa-core CPU configuration (1x Cortex-X1, 3x Cortex-A78, 4x Cortex-A55), the higher clock speed of the 888+ translates to marginally faster processing. Crucially, the 'Plus' variant often features improved thermal management, potentially reducing throttling during sustained workloads like gaming. The ROG Phone 5s is designed to maintain peak performance for longer durations, a critical advantage for demanding mobile titles.

Battery Life

The OnePlus 9 has an endurance rating of 87 hours, indicating solid battery life. It supports 65W wired charging, achieving a 100% charge in just 29 minutes, and 15W wireless charging (in EU/NA regions). The ROG Phone 5s, while lacking an endurance rating, compensates with 65W wired charging, reaching 70% in 30 minutes and 100% in 52 minutes. The ROG Phone 5s also offers 10W reverse wired charging. The OnePlus 9’s faster initial charging speed is a convenience advantage, but the ROG Phone 5s’s larger battery capacity (typically around 5000mAh, though not specified) likely provides longer overall usage, especially during gaming.

Buying Guide

Buy the OnePlus 9 if you need a versatile flagship with a strong camera and fast charging, prioritizing a sleek design and all-around usability. Buy the Asus ROG Phone 5s if you prioritize gaming performance, extended play sessions, and don't mind a more aggressive aesthetic. The ROG Phone 5s is for those who want a dedicated gaming device, while the OnePlus 9 is for those who want a premium smartphone.

Frequently Asked Questions

❓ Does the Snapdragon 888+ in the ROG Phone 5s significantly reduce thermal throttling compared to the OnePlus 9's Snapdragon 888 during prolonged gaming sessions?
Yes, the Snapdragon 888+ typically features improved thermal architecture and efficiency. While both chips are powerful, the ROG Phone 5s is designed with a more robust cooling system and the 888+’s enhancements, allowing it to maintain higher clock speeds for longer periods without significant performance drops during demanding games.
❓ How does the 65W charging on both phones differ in real-world usage, considering the OnePlus 9 claims 100% in 29 minutes while the ROG Phone 5s takes 52 minutes?
The OnePlus 9’s faster initial charging speed is due to a different charging curve and potentially less conservative voltage control. The ROG Phone 5s prioritizes battery health and may employ a more gradual charging approach, especially towards the end of the cycle. While the ROG Phone 5s takes longer to reach 100%, it likely delivers a substantial charge in the first 30 minutes, providing enough power for several hours of use.
❓ Given the ROG Phone 5s is geared towards gaming, does it support high frame rate gaming (90fps or higher) in popular titles like PUBG Mobile?
Yes, the ROG Phone 5s is specifically designed to support high frame rate gaming. While not explicitly stated in the provided data, ROG Phones typically offer settings to enable 90fps or even 120fps in compatible games like PUBG Mobile, providing a smoother and more responsive gaming experience. The higher refresh rate display further enhances this benefit.