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Asus ROG Phone (512GB) vs Xiaomi Redmi Note 9 (128GB/4GB)

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

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Compare Xiaomi Redmi Note 9 X Asus ROG Phone (512GB) 17Points
6"
AMOLED

1080x2160

12
MP

8mp

8GB
RAM

Octa-core

4000
mAh

(Non removable)

vs
10Points Xiaomi Redmi Note 9 (128GB/4GB) Compare Asus ROG Phone X
6.53"
IPS

1080x2340

48
MP

13mp

4GB
RAM

Octa-core

5020
mAh

(Non removable)

What's the better phone? Asus ROG Phone (512GB)

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 (512GB)} 17 Advantages Asus ROG Phone (512GB) vs Redmi Note 9 (128GB/4GB)} 10 Advantages Xiaomi Redmi Note 9 (128GB/4GB)
+2.96GHz 64bit Octa-core42%
More powerful processor, you can open your applications faster
vs2GHz 64bit Octa-core (12nm)
+8GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
vs4GB LPDDR4X
+512GB (498GB available)4 times
More internal storage for applications and files
vs128GB (106GB available)
+UFS 2.1Advantage
Fastest write and read storage.
vseMMC 5.1
+8.65 millimeters (0.34 inches)3%
Thinner
vs8.9 millimeters (0.35 inches)
+Aluminum frame, glass front/backAdvantage
More resistant material
vsPlastic body, glass front
+AMOLEDAdvantage
AMOLED display is brighter and more vivid
vsTFT IPS LCD
+HDR8Advantage
The HDR8 display provides vibrant colors and more details
vsNot supported
+90Hz50%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
vs60Hz
+402 PPI2%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs395 PPI
+OIS (4-axis): Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(4G LTE-A) 1024 Mbps2 times
Faster for surfing the internet and download files
vs(4G LTE-A) 300 Mbps
+30W67%
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.
vs18W
+802.11 a/b/g/n/ac/ad [wifi5/ad]Advantage
WiFi 802.11 a/b/g/n/ac/ad [wifi5/ad] is newer and faster
vs802.11 a/b/g/n/ac [wifi5]
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+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
Not supportedvs+Until 512GB microSD, microSDXCAdvantage
More external storage for files using memory cards
200 grams (7 ounces)vs+199 grams (6.97 ounces)1%
Lighter
1080x2160 pixelsvs+1080x2340 pixels8%
Higher resolution screen
6"vs+6.53"9%
Larger screen
(dual camera) 12MP + 8MPvs+(quad camera) 48MP + 8MP + 2MP + 2MP2 times
Higher resolution main camera
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/2.55" inchesvs+1/2" inches28%
The larger sensor camera lets you take photos with better depth.
(front) 8MPvs+(front) 13MP60%
Higher resolution secondary camera to take pictures and selfies
Android 9.0 Pievs+Android 11Advantage
Android 11 is newer and safer
4000 mAhvs+5020 mAh26%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use

30 Common items in both devices
16 million
LED flash
Only digital zoom
PDAF: phase detection autofocus
HDR photo on both cameras
f/1.8 (aperture)
(front) Full HD (1920x1080)
+23 specs and more in the table below

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

Highlight differences Clear highlight

📱 Model features

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
ModelROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Other model namesAsus ROG Phone ZS600KL, Z01QDMi Redmi Note 9 CX296VRD, CX296CIN, M2003J15SS/2003J15SC
Country or region available(Global, International)
(Global, International)
BrazilChinaIndia
Brazil, China, India
BrandAsusXiaomi
Release date9/1/20185/12/2020, Announced: 4/30/2020
Depth8.65 millimeters (0.34 inches)8.9 millimeters (0.35 inches)
Size (width x height)76.16 x 158.83 millimeters (3 x 6.25 in)77.2 x 162.3 millimeters (3.04 x 6.39 in)
Weight200 grams (7 ounces)199 grams (6.97 ounces)
Build, materialsAluminum frame, glass front/backPlastic body, glass front
Protection against water and othersWater splash resistant (don't immerse)Water repellent nano-coating (don't immerse)

📲 Display

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Display typeAMOLEDTFT IPS LCD
Screen size6" inches6.53" inches
Screen-to-body ratio~76.8% (screen-to-body ratio)~83.5% (screen-to-body ratio)
Display resolution1080x2160 pixels (18:9)1080x2340 pixels (19.5:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)402 PPI395 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass 5
Refresh rate90Hz60Hz
Display features550nits[typ]
HDR8
450nits[typ]

🤖 Operating System

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
System versionAndroid 8.1 OreoAndroid 10
Firmware updateAndroid 9.0 PieAndroid 11
User Interfacefeature not registeredMIUI 11 / 12

⚙️ Processor

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Chipset64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)64bit: MediaTek Helio G85 (12nm)
CPUOcta-core, 2 processors:
4x 2.96GHz Kryo 385 Gold (Quad-core)
4x 1.7GHz Kryo 385 Silver (Quad-core)
Octa-core, 2 processors:
2x 2GHz ARM-Cortex-A75 (Dual-core)
6x 1.8GHz ARM-Cortex-A55 (Hexa-core)
GPU graphical controllerQualcomm Adreno 630 710MhzARM Mali-G52 MC2 (1GHz)
Performance (benchmark)feature not registeredAnTuTu: 200451 (v8)
Geekbench: 1292 (v5.1)

💽 Memory and storage

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
RAM memory8GB LPDDR4X4GB LPDDR4X
Internal storage512GB (498GB available)
UFS 2.1
128GB (106GB available)
eMMC 5.1
External storageNot supportedUntil 512GB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload1024/150 Mbps300/150 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkCDMA 800, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO (B version)
TD-SCDMA 1900/2000 (B version)
UMTS 800/850/900/1700/1800/1900/2100
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32)
TD-LTE (34, 38, 39, 40, 41, 46)
LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1700/1900/2100
Secondary 4G networkNot supportedLTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A

📷 Camera

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Back camera (main camera)(dual camera)
12 megapixels
8MP ultrawide 12mmFF
(quad camera)
48 megapixels
8MP ultrawide f/2.213mm1/4"1.12µm118°
2MP macro f/2.41.75µmAF
2MP depth f/2.41/5"1.7µm
Main camera resolution4000x3000 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 60 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length24mm (lens)26mm (lens)
Sensor size1/2.55" inches1/2" inches
Pixel size1.4µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS (4-axis): Optical stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo on both cameras
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Front camera (secondary)8 megapixels13 megapixels
Front camera resolution3264x2448 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.3 (aperture)
Focal length24mm (lens)29mm (lens)
Sensor sizefeature not registered1/3.06" inches
Pixel sizefeature not registered1.12µm pixel

🔉 Sound and multimedia

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
LoudspeakerSupportedMono sound (not stereo)
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviDMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, OGG, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
USBUSB 3.1 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputUSB Type-C (reversible)USB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ad [wifi5/ad] (2.4GHz, 5GHz, 60GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedNot supported
Infrared portNot supportedSupported

🧭 Sensors

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock 2D
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock 2D
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Battery typeLi-Ion: lithium-ion (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity4000 mAh5020 mAh
Charger, watts30W (10V/3A) Wired fast charging
Quick Charge 4+
18W Wired fast charging
9W Reverse charging by cable
Inductive / wireless chargingNot supportedNot supported
Talk time autonomyfeature not registered33 hours (1.4 days)
Standbyfeature not registeredfeature not registered

➕ Other features

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black
• Front/back Gorilla glass
• 2.5D curved glass screen
• 3D curved glass back panel
• 90Hz display (1ms response time)
• 108.6% DCI-P3 color gamut
• Supports glove touch
• Sony IMX363 back camera sensor
• Quick Charge 4+
• Hi-Res audio
• 24-bit/192kHz audio
• Vapor-chamber cooling system
• Colors: Forest Green, Midnight Grey, Polar White
• 22.5W charger (18W phone support)

☢️ Radiation rate

Asus ROG Phone (512GB)Redmi Note 9 (128GB/4GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered0.84W/kg (head), 0.9W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.8W/kg (head), 1.14W/kg (body)
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