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Asus ROG Phone 2 (128GB) vs Xiaomi Mi 9 (64GB)

Side by side comparison between Asus ROG Phone 2 vs Xiaomi Mi 9 phones, differences, pros, cons with full specifications. What's the better?

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Compare Xiaomi Mi 9 XAsus ROG Phone 2 (128GB)13Points
Asus ROG Phone 2 (128GB)
6.59"
AMOLED

1080x2340

48
MP

24mp

12GB
RAM

64bit Octa

6000
mAh

(Non removable)

vs
Xiaomi Mi 9 (64GB)
6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

64bit Octa

3300
mAh

(Non removable)

What's the better phone? Asus ROG Phone 2 (128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

ROG Phone 2 (128GB)13 Advantages Asus ROG Phone 2 (128GB)vsMi 9 (64GB)8 Advantages Xiaomi Mi 9 (64GB)
+2.96Ghz 64bit Octa-Core2%
More powerful processor, you can open your applications faster
vs2.84Ghz 64bit Octa-Core
+12GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
vs6GB LPDDR4X
+128GB (107GB available)114%
More internal storage for applications and files
vs64GB (50GB available)
+UFS 3.0Advantage
Fastest write and read storage.
vsUFS 2.1
+1 billion62 times
More colors on the screen is better quality images and videos
vs16 million
+6.59"3%
Larger screen
vs6.39"
+(front) 24MP20%
Higher resolution secondary camera to take pictures and selfies
vs(front) 20MP
+(4G+ LTE-A) 1200 Mbps17%
Faster for surfing the internet and download files
vs(4G+ LTE-A) 1024 Mbps
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C jack with 3.5mm jack adapter
+6000 mAh82%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs3300 mAh
+30W11%
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
vs27W
+802.11 a/b/g/n/ac/ad (2.4Ghz, 5Ghz, 60Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ad (2.4Ghz, 5Ghz, 60Ghz) + MIMO is newer and faster
vs802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
+USB 3.1 Type-C reversible connectorAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
vsUSB 2.0 Type-C, USB OTG On-The-Go
240 grams (8.4 ounces)vs+173 grams (6.06 ounces)39%
Lighter
9.78 millimeters (0.39 inches)vs+7.61 millimeters (0.3 inches)29%
Thinner
AMOLEDvs+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
391 PPIvs+403 PPI3%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(dual camera) 48MP + 13MPvs+(triple camera) 48MP + 16MP + 12MP25%
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
Not supportedvs+Qi wireless chargingAdvantage
Wireless charging is another way to charge the battery.
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

32 Common items in both devices
Aluminum frame, glass front/back
1080x2340 pixels
Dual-LED flash
LDAF/PDAF: laser/phase detection autofocus
EIS: Digital stabilization
HDR photo on both cameras
1/2" inches
+25 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differencesClear highlight
Physical featuresAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
ModelROG Phone 2 (128GB)Mi 9 (64GB)
Other model namesAsus ROG Phone II ZS660KL (128GB + 12GB RAM)小米9, Xiaomi Mi9 (6GB RAM), M1902F1A, M1902F1G, M1902F1T
Country or region available(Global, International)
(Global, International)
China(Global, International)
China, (Global, International)
BrandAsusXiaomi
Release dateAugust, 2019March, 2019
Depth9.78 millimeters (0.39 inches)7.61 millimeters (0.3 inches)
Size (width x height)77.6 x 170.99 millimeters (3.06 x 6.73 in)74.67 x 157.5 millimeters (2.94 x 6.2 in)
Weight240 grams (8.4 ounces)173 grams (6.06 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum frame, glass front/backAluminum frame, glass front/back
Protection against water and othersNot supportedNot supported
System (OS)Asus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Operating systemAndroid 9.0 PieAndroid 9.0 Pie
Firmware updateAndroid 10Android 10
HardwareAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Chipset64bit - Qualcomm Snapdragon 855 Plus SDM855 (7nm)64bit - Qualcomm Snapdragon 855 SDM855 (7nm)
CPU processorOcta-Core, 3 processors:
2.96Ghz Single-Core Kryo 485
2.42Ghz 3-Cores Kryo 485
1.8Ghz Quad-Core Kryo 485
Octa-Core, 3 processors:
2.84Ghz Single-Core Kryo 485
2.42Ghz 3-Cores Kryo 485
1.78Ghz Quad-Core Kryo 485
GPU graphical controllerQualcomm Adreno 640 672MhzQualcomm Adreno 640
RAM memory12GB LPDDR4X6GB LPDDR4X
Internal storage128GB (107GB available)
UFS 3.0
64GB (50GB available)
UFS 2.1
External storageNot supportedNot supported
DisplayAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Display typeAMOLEDSuper AMOLED
Screen size6.59" inches6.39" inches
Screen-to-body ratio~80.3% (screen-to-body ratio)~85.2% (screen-to-body ratio)
Display resolution1080x2340 pixels (19.5:9)1080x2340 pixels
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)391 PPI403 PPI
Colors1 billion16 million
Scratch-resistant glassGorilla Glass 6Gorilla Glass 6
Display features120Hz, 600 nits, HDR10feature not registered
Mobile networksAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload1200/150 Mbps1024/150 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900CDMA 800, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat18 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34)
TD-LTE (Bands 38, 39, 40, 41, 46)
LTE Cat16/13
VoLTE

Global version:
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 20, 28)
TD-LTE (Bands 38, 39, 40)

China version:
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17)
TD-LTE (Bands 34, 38, 39, 40, 41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE
CallingAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
CameraAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Back camera (main camera)(dual camera)
48 megapixels
13MP ultrawidef/2.411mm125º
(triple camera)
48 megapixels
16MP ultrawidef/2.213mm1/3.0"1.0µmPDAF
12MP telephotof/2.254mm1/3.6"1.0µmPDAF2x-optical-zoom
Main camera resolution8000x6000 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 60 fps4K UHD (3840x2160) 60 fps
FlashDual-LED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm lensfeature not registered
Sensor size1/2" inches1/2" inches
Pixel size0.8µm pixel0.8µm pixel
AutofocusLDAF/PDAF: laser/phase detection autofocusLDAF/PDAF: laser/phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
2ª cameraAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Front camera (secondary)24 megapixels20 megapixels
Front camera resolution5632x4224 pixels5184x3840 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturefeature not registeredf/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registered0.9µm pixel
MultimediaAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviDMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
USBUSB 3.1 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
TV outputUSB Type-C (reversible)Not supported
Audio output3.5mm jackType-C jack with 3.5mm jack adapter
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ad (2.4Ghz, 5Ghz, 60Ghz) + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedSupported
NFCSupportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
Infrared portNot supportedSupported
Other functionsAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Hall effect
Face unlock
Fingerprint sensor (under display)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (under display)
Other features- Colors: Black
- Front/back Gorilla glass
- 120Hz display (1ms response time)
- DCI-P3 108% display
- ROG UI
- Sony IMX586 back camera sensor
- DTS:X Ultra sound
- 24-bit/192kHz audio
- WiFi direct, hotspot
- Colors: Piano Black, Lavender Violet, Ocean Blue
- MIUI 10
- HDR10/DCI-P3 display
- Sapphire glass camera cover
- Quick Charge 4+
- Fast wireless charging 20W
- WiFi direct, hotspot
Power supplyAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity6000 mAh3300 mAh
Charger, watts30W (10V/3A) Fast battery charging
10W Reverse charging USB between devices
Quick Charge 4
27W Fast battery charging
Qi wireless charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered
Radiation rateAsus ROG Phone 2 (128GB)Xiaomi Mi 9 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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