In depth comparison and review of Xiaomi MI Mix 3 5G and OnePlus 9 Pro. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
DESIGN AND DIMENSIONS | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch slider | Touch | |
Height | 157.89 mm | 163.2 mm | OnePlus 9 Pro has greater height than Xiaomi MI Mix 3 5G. |
Width | 74.69 mm | 73.6 mm | Xiaomi MI Mix 3 5G has greater width than OnePlus 9 Pro. |
Depth | 8.46 mm | 8.7 mm | Xiaomi MI Mix 3 5G is narrower than Xiaomi MI Mix 3 5G. |
Weight | 225 g | 197 g | OnePlus 9 Pro is lighter than Xiaomi MI Mix 3 5G. |
Body Colour | Sapphire blue | Onyx black | Morning mist | Stellar black | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 1.577 W/kg (body), 1.557 W/kg (head) | 2.77 W/kg (limb), 1.26 W/kg (body), 0.99 W/kg (head) | |
Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
SIM Card Type (Size) | - | Nano SIM | |
SIM Card Qty | Single-SIM | Dual-SIM |
DISPLAY | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Display Type | OLED display | OLED display | |
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Display Technology | AMOLED | Fluid Amoled | |
Screen Size (Display Size) | 6.39" | 6.7" | OnePlus 9 Pro has larger screen size than Xiaomi MI Mix 3 5G. |
Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 3216 x 1440 pixels | OnePlus 9 Pro has better screen resolution than Xiaomi MI Mix 3 5G. |
Display Format | Full HD+ | - | |
Pixel Density | 403 ppi | 525 ppi | OnePlus 9 Pro has better pixel density than Xiaomi MI Mix 3 5G. |
Aspect Ratio | 19.5:9 | 20.1:9 | |
Max Brightness | 600 cd/m² | - | |
Colour Depth | - | 1.07 billion colours | |
Contrast Ratio | 60000:1 | - | |
HDR | Yes | - | Xiaomi MI Mix 3 5G has HDR. |
Display Enhancement Technology | Sunlight mode | - | |
Display Refresh Rate | - | 120 Hz | |
Display Features | Always-on display, Reading mode, Colour temperature adjustment, night mode | Reading mode, night mode, Wide colour display (P3), Vibrant Color Effect Pro, Motion Graphics Smoothing, sRGB support, Hyper Touch, Adaptive Display, Fluid Display 2.0 | |
Display Protection (Screen Protector) | - | Corning Gorilla Glass (scratch resistant glass) |
PROCESSOR | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Processor Type (CPU) | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 888 | |
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Clock Speed | 2.84 GHz | - | |
Processor Core Qty | - | 8-core | |
64-bit Architecture | Yes | - | Xiaomi MI Mix 3 5G has 64-bit architecture. |
Graphics System (GPU) | Qualcomm ADRENO 640 | Qualcomm ADRENO 660 |
MEMORY | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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RAM | LPDDR4X SDRAM - 6 GB | LPDDR5 SDRAM - 8 GB | OnePlus 9 Pro has more RAM than Xiaomi MI Mix 3 5G. |
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Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
Memory Interface | UFS 2.1 | UFS 3.1 2-lane |
CAMERA | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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MAIN CAMERA |
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Number of Main Cameras | 2 | 4 | |
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Sensor Resolution | 12 Megapixel | 48 Megapixel | OnePlus 9 Pro has better camera resolution than Xiaomi MI Mix 3 5G. |
Sensor Size | - | 1/1.43" | |
Sensor Name | Sony Exmor RS IMX363 sensor | Sony Exmor RS IMX789 sensor | |
Lens Type | Wide-angle lens | - | |
Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
Lens Construction | - | 7-element | |
Pixel Size | 1.4 μm | 1.12 μm | Xiaomi MI Mix 3 5G has larger camera pixel size than OnePlus 9 Pro. |
Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
Focus Adjustment | Automatic | Automatic | |
Laser Auto Focus | - | Yes | |
Special Effects | HDR | HDR | |
Camera Modes | Panorama, Nightscape capture mode, Personalized AI Beautify | Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Macro mode, Portrait video, UltraShot HDR, Tracking Shot, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape | |
Face Recognition (Face ID) | Face recognition | - | Xiaomi MI Mix 3 5G has face detection. |
Light Source | Flash | Dual LED flash | |
Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1920 x 1080 (1080p) at 960 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps, 3840 x 2160 (4K) at 120 fps | |
Camera Features (Functions) | AI scene and object detection, Dual Pixel Autofocus technology, AI Dual camera, 4-in-1 Super Pixel, AI scene detection, AI dynamic bokeh, AI studio lighting, AI Super Resolution, low-light enhancement technology, AI special effects | Continuous Auto Focus (CAF), RAW image capture, All Pixel OmniDirectional PDAF, Hasselblad Camera, Natural Color Calibration |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 12 Megapixel | 50 Megapixel | OnePlus 9 Pro has better second camera resolution than Xiaomi MI Mix 3 5G. |
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Sensor Size (2nd Camera) | - | 1/1.56" | |
Sensor Name (2nd Camera) | Samsung S5K3M3+ | Sony Exmor RS IMX766 sensor | |
Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | - | F/2.2 | |
Lens Element Qty (2nd Camera) | - | 7-element | |
Pixel Size (2nd Camera) | 1 μm | - | |
Camera Features (2nd Camera) | - | Freeform Lens |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 8 Megapixel | |
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Lens Type (3rd Camera) | - | Telephoto lens | |
Lens Aperture (3rd Camera) | - | F/2.4 | |
Pixel Size (3rd Camera) | - | 1 μm | |
Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | OnePlus 9 Pro has optical stabilisation of the third camera. |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 2 Megapixel | |
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Lens Element Qty (4th Camera) | - | 3-element | |
Camera Functions (4th Camera) | - | Monochrome |
FRONT CAMERA |
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Number of Front Cameras | 2 | 1 | |
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Sensor Resolution (Front) | 24 Megapixel | 16 Megapixel | Xiaomi MI Mix 3 5G has better front camera resolution than OnePlus 9 Pro. |
Sensor Name (Front) | Sony Exmor RS IMX576 sensor | Sony Exmor RX IMX471 sensor | |
Lens Aperture (Front) | - | F/2.4 | |
Pixel Size (Front) | 1.8 μm | 1 μm | Xiaomi MI Mix 3 5G has larger front camera pixel size than OnePlus 9 Pro. |
Focus Adjustment | - | Focus free | |
Special Effects (Front) | Magic mirror | HDR, face retouch | |
HDR Mode (Front) | Auto HDR mode | - | |
Camera Modes (Front) | Bokeh Mode, AI Beautify, AI makeup | Time-lapse mode | |
Face Recognition (Face ID) | Face recognition | - | Xiaomi MI Mix 3 5G has face detection. |
Light Source (Front) | - | Display flash | |
Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Front) | AI portrait mode, 4-in-1 Super Pixel technology, Video Beautify, AI scene detection, AI dynamic bokeh, AI studio lighting, AI real-time video background blurring, AI eye light | Electronic Image Stabiliser (EIS) |
SECOND FRONT CAMERA |
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Sensor Resolution (2nd Front) | 2 Megapixel | - | |
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Sensor Name (2nd Front) | OC0A10 | - | |
Pixel Size (2nd Front) | 1.75 μm | - |
BATTERY AND CHARGING | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Battery Capacity (Battery Size) | 3800 mAh | 4500 mAh | OnePlus 9 Pro has larger battery capacity than Xiaomi MI Mix 3 5G. |
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Fast Charging Technology | Qualcomm Quick Charge 4.0+ | Warp Charge 65T technology | Both phones have fast charging technology. |
Wireless Charging | - | Yes | OnePlus 9 Pro can be charged wirelessly. |
Wireless Charging Standards | - | Qi, Warp Charge 50 Wireless |
CELLULAR | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
Operating System | - | OxygenOS (based on Android 11) | |
Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | LTE Advanced, FDD-LTE, TDD-LTE, 5G NR FR1 | |
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2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | - | |
3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19 | |
3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 900, 1700, 800 | |
4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
5G NR Band | N78 | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40 | |
5G NR Frequency | TDD TD 3500 | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Modem | - | Snapdragon X60 5G | |
Messaging Services | SMS, MMS | - |
MEDIA | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Supported Digital Audio Standards | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, apt-X, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, apt-X HD, EAC3-JOC, AC-4 | |
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Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | |
Sound Enhancements | - | Dolby Atmos sound technology |
FEATURES | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, ambient light sensor, digital compass, gyro sensor, vibration sensor, ultrasonic distance sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, RGB sensor, flicker sensor, sensor core | |
Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
Additional Phone Features | MIMO technology, MU-MIMO technology | Face Unlock, Noise Cancellation Technology, MIMO technology, Alert Slider, dual stereo speakers |
OTHERS | Xiaomi MI Mix 3 5G | OnePlus 9 Pro |
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Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable | SIM card removal tool, sticker, screen protector, protective case, Warp Charge 65 power adapter, Warp Type-C cable |
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