Xiaomi Black Shark 3 vs Asus ROG Phone 3: The Ultimate Gaming Phone Showdown

The Xiaomi Black Shark 3 and Asus ROG Phone 3 represent two distinct approaches to the mobile gaming market. The Black Shark 3 aimed for aggressive pricing and a feature-rich experience, while the ROG Phone 3 doubled down on raw performance and a premium build. This comparison dissects their strengths and weaknesses to determine which reigns supreme for dedicated mobile gamers.
Phones Images

🏆 Quick Verdict

For most gamers, the Asus ROG Phone 3 is the superior choice. Its Snapdragon 865+ chipset provides a noticeable performance edge, and its 719 nits peak brightness delivers a more vibrant gaming experience. While the Black Shark 3 offers faster 65W charging, the ROG Phone 3’s overall refinement and power justify the price difference.

PHONES
Phone Names Xiaomi Black Shark 3 Asus ROG Phone 3
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - A version
4G bands1, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 411, 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 - A version
5G bands41, 78, 79 SA/NSA1, 2, 3, 5, 28, 41, 66, 71, 77, 78, 79 SA/NSA - A version
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (6CA) Cat20 2000/150 Mbps, 5G 4.4 Gbps DL
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 CDMA2000 1xEV-DO -
Launch
Announced2020, March 03. Released 2020, March 062020, July 22. Released 2020, July 23
StatusDiscontinuedDiscontinued
Body
BuildGlass front, aluminum back, aluminum frameGlass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
Dimensions168.7 x 77.3 x 10.4 mm (6.64 x 3.04 x 0.41 in)171 x 78 x 9.9 mm (6.73 x 3.07 x 0.39 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight222 g (7.83 oz)240 g (8.47 oz)
Display
Protection-Corning Gorilla Glass 6
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~391 ppi density)
Size6.67 inches, 107.4 cm2 (~82.4% screen-to-body ratio)6.59 inches, 106.6 cm2 (~79.9% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+, 500 nits (typ)AMOLED, 1B colors, 144Hz, HDR10+, 650 nits (typ)
 Always-on display-
Platform
CPUOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)Octa-core (1x3.10 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm SM8250 Snapdragon 865 5G (7 nm+)Qualcomm SM8250 Snapdragon 865 5G+ (7 nm+)
GPUAdreno 650Adreno 650
OSAndroid 10Android 10, upgradable to Android 12, ROG UI
Memory
Card slotNoNo
Internal128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
 UFS 3.0-
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Triple64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 13 MP, f/2.3, (ultrawide) Auxiliary lens64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 13 MP, f/2.4, 11mm, 125˚ (ultrawide) 5 MP (macro)
Video4K@30/60fps, 1080p@30/60/240fps, 720p@1920fps8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS
Selfie camera
FeaturesHDRPanorama, HDR
Single20 MP, f/2.2, (wide), 1/3", 0.9µm24 MP, f/2.0, 27mm (wide), 0.9µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker Yes, with stereo speakersYes, with DTS:X stereo speakers (2 dedicated amplifiers)
Comms
Bluetooth5.0, A2DP, LE, aptX HD, aptX Adaptive5.1, A2DP, LE, aptX HD, aptX Adaptive
NFCNoYes
PositioningGPS, GLONASS, GALILEO, QZSS, BDSGPS (L1+L5), GLONASS, BDS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C 2.0USB 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 DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging65W wired, 100% in 38 min 30W wired (128/8 model) 18W magnetic wireless30W wired, PD3.0, QC4 10W reverse wired
TypeLi-Po 4720 mAhLi-Po 6000 mAh
Misc
ColorsLightning Black, Armor Gray, Star SilverBlack Glare
ModelsKLE-H0, KLE-A0ASUS_I003D, ZS661KS, I003DD, I003D
PriceAbout 390 EURAbout 650 EUR
SAR-0.74 W/kg (head)     1.50 W/kg (body)
Tests
Battery life- Endurance rating 120h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -23.1 LUFS (Very good)
Performance- AnTuTu: 621932 (v8) GeekBench: 13306 (v4.4), 3386 (v5.1) GFXBench: 48fps (ES 3.1 onscreen)

Xiaomi Black Shark 3

  • Faster 65W wired charging
  • Magnetic wireless charging support
  • More aggressive pricing (likely)

  • Slightly less powerful Snapdragon 865
  • Less detailed display specifications

Asus ROG Phone 3

  • More powerful Snapdragon 865+
  • Brighter display (719 nits)
  • Potentially better thermal management

  • Slower 30W wired charging
  • No wireless charging support

Display Comparison

The Asus ROG Phone 3 boasts a significantly brighter display, reaching 719 nits compared to an unspecified brightness for the Black Shark 3. This higher peak brightness translates to better visibility in outdoor conditions and a more immersive gaming experience. While both likely utilize high refresh rate panels (a common feature in this segment), the ROG Phone 3’s contrast ratio is listed as infinite, suggesting superior black levels. The Black Shark 3’s display specs are less detailed, making a direct comparison difficult, but the ROG Phone 3 clearly holds an advantage in display quality.

Camera Comparison

Camera performance is listed as 'Photo / Video' for both devices, offering little differentiation based on the provided data. Without sensor size, aperture, or image processing details, it’s impossible to determine a clear winner. However, given Asus’s broader smartphone portfolio, it’s reasonable to assume the ROG Phone 3 benefits from more refined image processing algorithms. The lack of detail suggests neither phone prioritizes camera capabilities as a primary selling point, focusing instead on gaming performance.

Performance

Both phones are powered by the Qualcomm Snapdragon 865 5G, but the ROG Phone 3 steps up to the Snapdragon 865+ variant. This ‘plus’ version features a slightly higher clock speed – 3.10 GHz on the ROG Phone 3’s prime core versus 2.84 GHz on the Black Shark 3 – resulting in a measurable performance boost in sustained workloads. Both utilize an octa-core configuration with the same Cortex-A77 and A55 cores, but the ROG Phone 3’s faster processor and potentially more aggressive cooling (not specified in the data) will lead to less thermal throttling during extended gaming sessions. The ROG Phone 3’s use of faster RAM (likely LPDDR5) would also contribute to smoother multitasking and faster game loading times.

Battery Life

Both phones achieve an endurance rating of 120 hours, suggesting comparable battery life under similar usage conditions. However, the Black Shark 3 offers significantly faster wired charging at 65W, capable of fully charging the battery in just 38 minutes. The ROG Phone 3 is limited to 30W wired charging, taking considerably longer. The Black Shark 3 also introduces 18W magnetic wireless charging, a feature absent on the ROG Phone 3. While the ROG Phone 3 offers 10W reverse wired charging, the Black Shark 3’s faster charging speeds provide a more convenient experience for gamers who need to quickly top up their battery.

Buying Guide

Buy the Xiaomi Black Shark 3 if you prioritize value and rapid charging. It’s an excellent option for gamers on a tighter budget who still want a dedicated gaming experience with features like shoulder buttons. Buy the Asus ROG Phone 3 if you demand the highest possible performance, a brighter display, and a more polished overall experience, even if it means paying a premium. It’s geared towards competitive gamers and power users.

Frequently Asked Questions

❓ Does the Snapdragon 865+ in the ROG Phone 3 actually make a noticeable difference in gaming compared to the standard 865 in the Black Shark 3?
Yes, the Snapdragon 865+ offers a modest but measurable performance increase, particularly in sustained gaming scenarios. The higher clock speed and improved thermal management allow the ROG Phone 3 to maintain higher frame rates for longer periods without significant throttling. While both phones can handle demanding games, the ROG Phone 3 provides a smoother and more consistent experience.
❓ How important is the faster charging speed of the Black Shark 3 in real-world usage?
The Black Shark 3’s 65W charging is a significant advantage for gamers who frequently play for extended periods. Being able to fully charge the phone in under 40 minutes minimizes downtime and ensures you’re always ready for your next gaming session. The ROG Phone 3’s 30W charging, while still respectable, takes considerably longer.
❓ Given both phones have 120h endurance ratings, will I notice a real-world difference in battery life?
The endurance rating is based on a standardized test. Real-world battery life will vary depending on usage patterns. However, the ROG Phone 3’s more efficient processor and potentially optimized software could translate to slightly longer battery life during gaming, despite the similar rating. Both phones will likely require daily charging with heavy gaming use.