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Xiaomi Mi 6X (128GB) vs OnePlus 9 Pro (256GB/12GB)

Side by side comparison between Xiaomi Mi 6X vs OnePlus 9 Pro phones, differences, pros, cons and full specifications. What's the better?

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Compare OnePlus 9 Pro X Xiaomi Mi 6X (128GB) 04Points
5.99"
IPS

1080x2160

12
MP

20mp

6GB
RAM

Octa-core

3000
mAh

(Non removable)

vs
28Points OnePlus 9 Pro (256GB/12GB) Compare Xiaomi Mi 6X X
6.7"
AMOLED

1440x3216

48
MP

16mp

12GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? OnePlus 9 Pro (256GB/12GB)

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!

Mi 6X (128GB)} 4 Advantages Xiaomi Mi 6X (128GB) vs 9 Pro (256GB/12GB)} 28 Advantages OnePlus 9 Pro (256GB/12GB)
+168 grams (5.88 ounces)17%
Lighter
vs197 grams (6.9 ounces)
+7.3 millimeters (0.29 inches)19%
Thinner
vs8.7 millimeters (0.34 inches)
+Dual-LED on main camera and LED on front cameraAdvantage
The Dual-LED on main camera and LED on front camera helps in dark places or in low light
vsDual-LED flash
+(front) 20MP26%
Higher resolution secondary camera to take pictures and selfies
vs(front) 16MP
2.2GHz 64bit Octa-core (14nm)vs+2.84GHz 64bit Octa-core (5nm)25%
More powerful processor, you can open your applications faster
6GB LPDDR4Xvs+12GB LPDDR5100%
More RAM memory. Typically more responsive and better for multitasking.
128GB (111GB available)vs+256GB (220GB available)98%
More internal storage for applications and files
eMMC 5.1vs+UFS 3.1Advantage
Fastest write and read storage.
LTPS IPS LCDvs+Fluid AMOLEDAdvantage
Fluid AMOLED display is brighter and more vivid
Not supportedvs+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
60Hzvs+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 millionvs+1 billion62 times
More colors on the screen is better quality images and videos
1080x2160 pixelsvs+1440x3216 pixels99%
Higher resolution screen
403 PPIvs+526 PPI31%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.99"vs+6.7"12%
Larger screen
(dual camera) 12MP + 20MPvs+(quad camera) 48MP + 8MP + 50MP + 2MP2 times
Higher resolution main camera
EIS: Digital stabilizationvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/2.9" inchesvs+1/1.43" inches103%
The larger sensor camera lets you take photos with better depth.
4K UHD (3840x2160)vs+8K UHD (7680x4320)3 times
More image quality for recording videos with the primary camera
Android 9.0 Pievs+Android 13Advantage
Android 13 is newer and safer
4G LTE-Avs+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
(4G LTE-A) 600 Mbpsvs+(5G SA/NSA) 2000 Mbps2 times
Faster for surfing the internet and download files
3000 mAhvs+4500 mAh50%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18Wvs+65W3 times
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.
Not supportedvs+Qi Wireless charging (Qi/WPC)Advantage
Wireless charging is another way to charge the battery.
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ax [wifi6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
5.0 + A2DP/LEvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
USB 2.0 Type-C reversible connectorvs+USB 3.1 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

25 Common items in both devices
Aluminum body, glass front / Aluminum frame, glass front/back
Only digital zoom
PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus
HDR photo on both cameras / HDR photo/video on both cameras
f/1.8 (aperture)
(front) Full HD (1920x1080)
Capacitive
+18 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

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
ModelXiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
Other model names小米6X, Xiaomi Mi 6X M1804D2SE, M1804D2SC, Xiaomi WayneOnePlus 9 Pro LE2123 (Global), LE2121 (India), LE2120(China)
Country or region availableChinaHong Kong
China, Hong Kong
(Global, International)
(Global, International)
BrandXiaomiOnePlus
Release date6/1/20183/30/2021, Announced: 3/23/2021
Depth7.3 millimeters (0.29 inches)8.7 millimeters (0.34 inches)
Size (width x height)75.4 x 158.7 millimeters (2.97 x 6.25 in)73.6 x 163.2 millimeters (2.9 x 6.43 in)
Weight168 grams (5.88 ounces)197 grams (6.9 ounces)
Build, materialsAluminum body, glass frontAluminum frame, glass front/back
Protection against water and othersNot supportedIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

📲 Display

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
Display typeLTPS IPS LCDFluid AMOLED
Screen size5.99" inches6.7" inches
Screen-to-body ratio~77.4% (screen-to-body ratio)~89.9% (screen-to-body ratio)
Display resolution1080x2160 pixels (18:9)1440x3216 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)403 PPI526 PPI
Colors16 million1 billion
Scratch-resistant glassGorilla Glass 5Gorilla Glass 5
Refresh rate60Hz120Hz
Display featuresNot supported1300nits[peak]
HDR10+
Always-On Display

🤖 Operating System

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
System versionAndroid 8.1 OreoAndroid 11
Firmware updateAndroid 9.0 PieAndroid 13
User Interfacefeature not registeredOxygenOS 12 / 13 (Global)
ColorOS 12 / 13 (China)

⚙️ Processor

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
Chipset64bit: Qualcomm Snapdragon 660 (SDM660) (14nm)64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)
CPUOcta-core, 2 processors:
4x 2.2GHz Kryo 260 Gold (Quad-core)
4x 1.8GHz Kryo 260 Silver (Quad-core)
Octa-core, 3 processors:
1x 2.84GHz Kryo 680 (Single-core)
3x 2.42GHz Kryo 680 (Triple-core)
4x 1.8GHz Kryo 680 (Quad-core)
GPU graphical controllerQualcomm Adreno 512 (650MHz)Qualcomm Adreno 660 (840MHz)
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
RAM memory6GB LPDDR4X12GB LPDDR5
Internal storage128GB (111GB available)
eMMC 5.1
256GB (220GB available)
UFS 3.1
External storageNot supportedNot supported

📶 Mobile networks

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
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 / Upload600/150 Mbps2000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
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 850/900/1800/1900CDMA 800 (China), GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1900/2100
CDMA2000 1xEV-DO (China)
UMTS 800/850/900/1700/1800/1900/2100
Primary 4G networkLTE Cat12 (Bands 1,3,5,7,8)
TD-LTE (Bands 34,38,39,40,41)
VoLTE
LTE Cat20
VoLTE
Global:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41)
India:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26)
TD-LTE (34, 38, 39, 40, 41, 46)
China:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26)
TD-LTE (34, 38, 39, 40, 41)
Primary 5G networkNot supportedSA/NSA
Global:
(1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78)
India:
(41, 78)
China:
(1, 3, 28, 41, 78, 79)
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, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 800/850/900/1700/1800/1900/2100
Secondary 4G networkNot supportedLTE Cat20
VoLTE
Global:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41)
India:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26)
TD-LTE (34, 38, 39, 40, 41, 46)
China:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26)
TD-LTE (34, 38, 39, 40, 41)
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA

📷 Camera

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
Back camera (main camera)(dual camera)
12 megapixels
20MP f/1.81/2.8"1.0µm
(quad camera)
48 megapixels
8MP telephoto f/2.477mm1.0µmPDAFOIS3.3x-optical-zoom
50MP ultrawide f/2.214mm1/1.56"1.0µmAF
2MP monochrome f/2.4
Main camera resolution4000x3000 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps8K UHD (7680x4320) 30 fps
FlashDual-LED on main camera and LED on front cameraDual-LED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered23mm (lens)
Sensor size1/2.9" inches1/1.43" inches
Pixel size1.25µm pixel1.12µm pixel
AutofocusPDAF: phase detection autofocusLDAF/PDAF: laser/phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Camera extrasfeature not registered4K@30/60/120fps
1080p@30/60/240fps
Hasselblad Color Calibration
Sony IMX689, IMX766. IMX471 sensor

📸 Front camera

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
Front camera (secondary)20 megapixels16 megapixels
Front camera resolution5164x3872 pixels4608x3456 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashLEDNot supported
Focal aperturef/2.2 (aperture)f/2.4 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/2.8" inches1/3.06" inches
Pixel size1µm pixel1µm pixel

🔉 Sound and multimedia

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
LoudspeakerSupportedStereo sound with dual speakers
24-bit/192kHz
Dolby Atmos
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, OGG, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
USBUSB 2.0 Type-C reversible connectorUSB 3.1 Type-C, USB OTG On-The-Go
Audio outputType-C jack with 3.5mm jack adapterType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, SBAS
NFCNot supportedSupported
Infrared portSupportedNot supported

🧭 Sensors

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity3000 mAh4500 mAh
Charger, watts18W Wired fast charging
Quick Charge 3
65W (10V/6.5A) Wired fast charging
USB Power Delivery 1.0
Inductive / wireless chargingNot supported50W Qi Wireless charging (Qi/WPC)
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
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, Gold, Blue, Red, Rose Gold
• Back camera sensor: Sony IMX486/IMX376
• Front camera sensor: Sony IMX376
• WiFi display
• Colors: Stellar Black, Morning Mist, Pine Green

☢️ Radiation rate

Xiaomi Mi 6X (128GB)OnePlus 9 Pro (256GB/12GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.96W/kg (head), 0.64W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)1.16W/kg (head), 0.66W/kg (body)feature not registered
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