OnePlus 6 (256GB) vs Xiaomi Mi 9 (128GB/8GB)

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

3/8/2019 12:05 PM, updated: 3/17/2020 4:15 PM

Compare Xiaomi Mi 9 X OnePlus 6 (256GB) 04Points

Specifications Compare Models Pictures

6.28"
AMOLED

1080x2280

16
MP

16mp

8GB
RAM

Octa-core

3300
mAh

(Non removable)

11Points Xiaomi Mi 9 (128GB/8GB) Compare OnePlus 6 X

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

8GB
RAM

Octa-core

3300
mAh

(Non removable)

What's the better phone? Xiaomi Mi 9 (128GB/8GB)

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!

4 Advantages OnePlus 6 (256GB)	vs	11 Advantages Xiaomi Mi 9 (128GB/8GB)
+256GB (243GB available)123% More internal storage for applications and files	vs	128GB (109GB available)
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+f/1.7 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.8 (aperture)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
2.8GHz 64bit Octa-core	vs	+2.84GHz 64bit Octa-core (7nm)6% More powerful processor, you can open your applications faster
177 grams (6.2 ounces)	vs	+173 grams (6.06 ounces)2% Lighter
7.8 millimeters (0.31 inches)	vs	+7.61 millimeters (0.3 inches)2% Thinner
1080x2280 pixels	vs	+1080x2340 pixels3% Higher resolution screen
402 PPI	vs	+403 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.28"	vs	+6.39"2% Larger screen
(dual camera) 16MP + 20MP	vs	+(triple camera) 48MP + 16MP + 12MP112% Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
1/2.6" inches	vs	+1/2" inches30% The larger sensor camera lets you take photos with better depth.
(front) 16MP	vs	+(front) 20MP25% Higher resolution secondary camera to take pictures and selfies
20W	vs	+27W35% 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.

32 Common items in both devices

8GB LPDDR4X

Aluminum frame, glass front/back

Optic AMOLED / Super AMOLED

16 million

Dual-LED flash

PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus

HDR photo/video on both cameras / HDR photo on both cameras

+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 differences

📱 Model features
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Change model		Choose the model
Model	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Other model names	OnePlus 6 A6000, OnePlus 6 A6003, One Plus 6 (8GB RAM)	小米9, Xiaomi Mi9 (8GB RAM), M1902F1A, M1902F1G, M1902F1T
Country or region available	(Global, International)	China
Brand	OnePlus	Xiaomi
Release date	5/22/2018	3/1/2019
Depth	7.8 millimeters (0.31 inches)	7.61 millimeters (0.3 inches)
Size (width x height)	75.4 x 155.7 millimeters (2.97 x 6.13 in)	74.67 x 157.5 millimeters (2.94 x 6.2 in)
Weight	177 grams (6.2 ounces)	173 grams (6.06 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Display type	Optic AMOLED	Super AMOLED
Screen size	6.28" inches	6.39" inches
Screen-to-body ratio	~83.8% (screen-to-body ratio)	~85.2% (screen-to-body ratio)
Display resolution	1080x2280 pixels	1080x2340 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	402 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 6
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
System version	Android 8.1 Oreo	Android 9.0 Pie
Firmware update	Android 10	Android 10
User Interface	feature not registered	feature not registered
⚙️ Processor
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Chipset	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)	64bit: Qualcomm Snapdragon 855 (SM8150) (7nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)	Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core)
GPU graphical controller	Qualcomm Adreno 630	Qualcomm Adreno 640 (585MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
RAM memory	8GB LPDDR4X	8GB LPDDR4X
Internal storage	256GB (243GB available)	128GB (109GB available) UFS 2.1
External storage	Not supported	Not supported
📶 Mobile networks
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	1024/150 Mbps	1024/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800/1900, GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat16 A6000 version (India, Asia, China): LTE (Bands 1,2,3,4,5,7,8,12,17,18,19,20,25,26,28,29,66) TD-LTE (Bands 34,38,39,40,41) A6003 version (Europe, North America): LTE (Bands 1,2,3,4,5,7,8,12,17,18,19,20,25,26,28,29,30,32,66,71) TD-LTE (Bands 34,38,39,40,41)	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 network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, 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 network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Back camera (main camera)	(dual camera) 16 megapixels 20MP wide f/1.71/2.8"25mm1.0µmPDAF	(triple camera) 48 megapixels 16MP ultrawide f/2.213mm1/3.0"1.0µmPDAF 12MP telephoto f/2.254mm1/3.6"1.0µmPDAF2x-optical-zoom
Main camera resolution	4608x3456 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 60 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/1.7 (aperture)	f/1.8 (aperture)
Focal length	27mm lens	feature not registered
Sensor size	1/2.6" inches	1/2" inches
Pixel size	1.22µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	LDAF/PDAF: laser/phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo/video on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Front camera (secondary)	16 megapixels	20 megapixels
Front camera resolution	4608x3456 pixels	5184x3840 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	20mm lens	feature not registered
Sensor size	1/3" inches	feature not registered
Pixel size	1µm pixel	0.9µm pixel
🔉 Sound and multimedia
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
USB	USB 2.0 Type-C reversible connector	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Sensors	Accelerometer 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 alert	Supported	Supported
🔋 Battery
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3300 mAh	3300 mAh
Charger, watts	20W (5V/4A) Wired fast charging	27W Wired fast charging
Inductive / wireless charging	feature not registered	Qi wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Midnight Black, Mirror Black, Silk White • 2.5D Gorilla Glass 5 • Screen protector pre-applied • Oxygen OS • Dirac HD sound • Dash Charge • Sony IMX 519 back camera • Sony IMX 371 front camera	• Colors: Piano Black, Lavender Violet, Ocean Blue • MIUI 10 • HDR10/DCI-P3 display • Sapphire glass camera cover • Quick Charge 4+ • Fast wireless charging 20W
☢️ Radiation rate
	OnePlus 6 (256GB)	Xiaomi Mi 9 (128GB/8GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered

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OnePlus 6 (256GB) vs Xiaomi Mi 9 (128GB/8GB)

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

What's the better phone? Xiaomi Mi 9 (128GB/8GB)

📱 Model features

📲 Display

🤖 Operating System

⚙️ Processor

💽 Memory and storage

📶 Mobile networks

📷 Camera

📸 Front camera

🔉 Sound and multimedia

🔌 Connectivity

🧭 Sensors

🔋 Battery

➕ Other features

☢️ Radiation rate