OnePlus OnePlus 9 vs Xiaomi Xiaomi 12

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OnePlus 9 compared with Xiaomi 12

	OnePlusOnePlus 9	XiaomiXiaomi 12
Overview
Released
Released	March 2021	December 2021
Display
Screen size
Screen size	6.55″	6.28″
Resolution
Resolution	2400 × 1080	2400 × 1080
Sharpness
Sharpness	402 pixels per inch	419 pixels per inch (better)
Panel
Panel	OLED	OLED
Refresh rate
Refresh rate	120 Hz	120 Hz
Peak brightness
Peak brightness	1,100 nits	–
Display type
Display type	Flat Fluid AMOLED; 20:9 aspect ratio	AMOLED DotDisplay; 20:9 aspect ratio
Pixel density
Pixel density	402 ppi	–
Brightness detail
Brightness detail	Up to 1,100 nits; two ambient light sensors and 8,192 automatic brightness levels, stated in the maker's launch release	–
Always-on display
Always-on display	Always-on display with OxygenOS 11, described by TechAdvisor	–
Screen protection
Screen protection	Corning Gorilla Glass; generation not specified in the maker's sheet	Corning Gorilla Glass Victus
Display features
Display features	120 Hz; HDR10+; sRGB and Display P3; Comfort Tone, Reading Mode, Night Mode, Vibrant Color Effect and Ultra-high Video Resolution	Up to 480 Hz touch sampling; over 68 billion colours; DCI-P3 gamut; JNCD approximately 0.61, Delta E approximately 0.59; 5,000,000:1 contrast; HDR10+, Dolby Vision, 360° ambient light sensing and DisplayMate A+
Performance
Chip
Chip	Snapdragon 888	Qualcomm Snapdragon 8 Gen 1
Memory
Memory	8 GB – 12 GB	8 GB – 12 GB
Storage
Storage	128 GB, 256 GB	128 GB, 256 GB
CPU
CPU	Qualcomm Snapdragon 888 with Snapdragon X60 5G modem	4 nm process; one Cortex-X2-based core at 3.0 GHz, three Cortex-A710-based cores at 2.5 GHz and four Cortex-A510-based cores at 1.8 GHz
GPU
GPU	Adreno 660	Qualcomm Adreno; model number not published on the maker sheet
AI engine
AI engine	–	Seventh-generation Qualcomm AI Engine
Storage type
Storage type	LPDDR5 RAM; UFS 3.1 two-lane storage; UK 8/128 GB and 12/256 GB pairings confirmed by TechAdvisor	LPDDR5 RAM and UFS 3.1 storage; 12 GB/256 GB configuration is for other markets, with UK configurations using 8 GB RAM
Cooling
Cooling	OnePlus Cool Play with thicker graphite layers and a larger vapour chamber	LiquidCool Technology with vapour chamber, graphite sheets and boron nitride film
Cameras
Main camera
Main camera	48 MP	50 MP (better)
Ultra wide camera
Ultra wide camera	50 MP	13 MP
Telephoto camera
Telephoto camera	None	None
Optical zoom
Optical zoom	None	None
Front camera
Front camera	16 MP	32 MP (better)
Main camera
Main camera	Sony IMX689, 48 MP, 1/1.43-inch sensor, f/1.8, 23 mm equivalent, seven-element lens and 1.12 µm pixels; maker's sheet does not publish OIS and the reviews confirm its absence	50 MP, 1/1.56-inch sensor, ƒ/1.88, OIS; 1 µm pixels and 4-in-1 2 µm Super Pixels
Ultra wide camera
Ultra wide camera	Sony IMX766, 50 MP, 1/1.56-inch sensor, f/2.2, 14 mm equivalent, seven-element freeform lens	13 MP, ƒ/2.4, 123° field of view
Front camera
Front camera	Sony IMX471, 16 MP, f/2.4, 1.0 µm pixels, fixed focus and EIS	32 MP, ƒ/2.45
Zoom
Zoom	Digital zoom; no dedicated telephoto camera	–
Video recording
Video recording	8K at 30 fps; 4K and 1080p at 30 or 60 fps; slow motion at 1080p 240 fps or 720p 480 fps; time-lapse at 1080p or 4K 30 fps; video editor	8K at 24 fps; 4K at 30 or 60 fps; 1080p at 30 or 60 fps; 720p at 30 fps; slow motion at 120, 240, 480, 960 or 1,920 fps
Front video
Front video	1080p at 30 fps; time-lapse	1080p at 30 or 60 fps; 720p at 30 fps; 720p slow motion at 120 fps
Camera features
Camera features	Hasselblad Camera for Mobile and Natural Color Calibration; additional 2 MP monochrome camera, all-pixel omnidirectional phase and contrast autofocus, dual LED flash, Nightscape, Super Macro, UltraShot HDR, Smart Scene Recognition, Portrait, Pro with 12-bit RAW, Panorama, Tilt-shift, focus peaking, pet focus, filters, Super Stable, Video Nightscape, Video HDR, video portrait, focus tracking and Hyperlapse	5 MP telemacro, ƒ/2.4, autofocus from 3–7 cm; ProFocus motion/eye tracking and motion capture, night modes, photo clones, timed burst, document mode, HDR and Google Lens; AI cinema, Ultra Night Video, Vlog, dual video and video log
Battery and charging
Battery
Battery	4,500 mAh	4,500 mAh
Wired charging
Wired charging	Up to 65 W	Up to 67 W (better)
Wireless charging
Wireless charging	Up to 15 W	Up to 50 W (better)
Battery life detail
Battery life detail	Non-removable dual-cell battery; two 2,250 mAh cells equivalent to 4,500 mAh typical	4,500 mAh typical; Xiaomi AdaptiveCharge
Wired charging
Wired charging	Warp Charge 65T, 10 V/6.5 A; maker reports 1–100% in 29 minutes under laboratory conditions; included adapter supports USB Power Delivery up to 45 W for other compatible devices	67 W charger included
Wireless charging
Wireless charging	15 W Qi wireless charging on the European model; regional variants differ	–
Charges other devices
Charges other devices	Reverse wireless charging, described by Android Central; maker wattage not verified	10 W reverse wireless charging
Design
Type
Type	Standard	Standard
Weight
Weight	192 g	180 g (better)
Thickness
Thickness	8.7 mm	8.16 mm (better)
Height × width
Height × width	160 × 74.2 mm	152.7 × 69.9 mm
Materials
Materials	Glass back and plastic frame, described by TechRadar	–
Colours
Colours	Arctic Sky, Astral Black and Winter Mist; UK Winter Mist is tied to 12/256 GB according to TechAdvisor	Grey, Blue and Purple
Buttons
Buttons	Alert Slider; gestures and on-screen navigation supported	–
Water resistance detail
Water resistance detail	No published IP rating for the UK unlocked model; the separate US T-Mobile certification is not applied	–
Biometrics
Biometrics	In-display fingerprint sensor and camera-based face unlock	In-screen fingerprint sensor and AI face unlock
Sensors
Sensors	Fingerprint sensor, accelerometer, electronic compass, gyroscope, ambient light, proximity, sensor core and flicker detection	Proximity, ambient light, accelerometer, gyroscope, compass, X-axis linear motor, IR blaster and flicker sensor
Speakers
Speakers	Dual stereo speakers; Dolby Atmos	Stereo speakers; SOUND BY Harman Kardon and Dolby Atmos
Microphones
Microphones	Noise cancellation support	–
Software
Operating system
Operating system	Android	Android
Software at launch
Software at launch	OxygenOS based on Android 11	MIUI 13 based on Android 12
Software updates
Software updates	Three Android OS upgrades and four years of security updates from launch, reported by TechAdvisor; this is the original commitment, not a claim of continuing support	–
In the box
In the box	Phone, Warp Charge 65 adapter, USB-C to USB-C cable, quick start guide, welcome letter, safety and warranty information, logo sticker, case, screen protector and SIM ejector	Phone, adapter, USB-C cable, SIM tool, protective case, quick start guide and warranty card
Connectivity
Mobile network
Mobile network	Snapdragon X60; 4×4 MIMO, up to LTE Cat 20 download and Cat 18 upload, 2 Gbit/s and 200 Mbit/s subject to carrier; UK 5G NSA n1/n3/n5/n7/n8/n20/n28/n38/n40/n41/n66/n78 and SA n1/n3/n7/n28/n41/n78	5G NSA/SA n1/3/5/7/8/20/28/38/40/41/66/77/78/79; LTE FDD B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/32/66 and TDD B38/39/40/41/42/48; WCDMA B1/2/4/5/6/8/19; GSM 850/900/1800/1900 MHz; 4×4 MIMO
SIM
SIM	Dual nano-SIM	Dual SIM; availability varies by region
Wi-Fi
Wi-Fi	Wi-Fi 6, 802.11 a/b/g/n/ac/ax; 2×2 MIMO on 2.4 and 5 GHz	Wi-Fi 6; Wi-Fi 6E availability varies by region and may require an OTA update; availability depends on the local network
Bluetooth
Bluetooth	Bluetooth 5.2; aptX, aptX HD, LDAC and AAC	Bluetooth 5.2
NFC
NFC	Yes	Supported; Google Pay availability varies by market
USB
USB	USB-C, USB 3.1 Gen 1; standard USB-C earphones supported; included cable supports USB 2.0	USB-C
Positioning
Positioning	Dual-band GPS L1/L5 and Galileo E1/E5a; GLONASS, BeiDou and A-GPS	GPS L1/L5, Galileo E1/E5a, GLONASS G1, BeiDou and NavIC L5; A-GNSS, compass and network positioning