Xiaomi MI Mix 3 vs. Xiaomi MI 9

Phone Comparison, Reviews and Tests

Detailed comparison and review of Xiaomi MI Mix 3 and Xiaomi MI 9. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

Xiaomi MI Mix 3 vs. Xiaomi MI 9 Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI Mix 3 Xiaomi MI 9
Product Type Smartphone Smartphone
Form Factor Touch slider Touch
Height 157.89 mm 157.5 mm Xiaomi MI Mix 3 has greater height than Xiaomi MI 9.
Width 74.69 mm 74.67 mm Xiaomi MI Mix 3 has greater width than Xiaomi MI 9.
Depth 8.46 mm 7.61 mm Xiaomi MI 9 is narrower than Xiaomi MI Mix 3.
Weight 218 g 173 g Xiaomi MI 9 is lighter than Xiaomi MI Mix 3.
Body Colour Sapphire blue | Jade green Ocean blue | Piano black
Body Material - Curved glass
Waterproof (Water-resistant) - -
SAR Value 1.568 W/kg (body), 1.448 W/kg (head) 1.301 W/kg (body), 1.389 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 Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Xiaomi MI Mix 3 Xiaomi MI 9
Display Type OLED display OLED display
Display Technology AMOLED AMOLED
Screen Size (Display Size) 6.39" 6.39" Both phones have the same screen size.
Screen Resolution (Display Resolution) 2340 x 1080 pixels 2340 x 1080 pixels Both phones have the same screen resolution.
Display Format Full HD+ Full HD+
Pixel Density 403 ppi 403 ppi Both phones have the same pixel density.
Aspect Ratio 19.5:9 -
Max Brightness 600 cd/m² 600 cd/m² Both phones have the same display brightness
Contrast Ratio 60000:1 60000:1 Both phones have the same display contrast ratio.
HDR Yes Yes Both phones have HDR.
HDR Technology - HDR10
Display Enhancement Technology Sunlight mode Sunshine mode 2.0
Display Features Always-on display, Reading mode, Colour temperature adjustment, night mode Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG)
Display Protection (Screen Protector) - Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating
PROCESSOR Xiaomi MI Mix 3 Xiaomi MI 9
Processor Type (CPU) Qualcomm Snapdragon 845 AIE Qualcomm Snapdragon 855
Clock Speed 2.8 GHz 2.84 GHz Xiaomi MI 9 has higher clock speed than Xiaomi MI Mix 3.
Processor Core Qty - 8-core
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 630 Qualcomm ADRENO 640
MEMORY Xiaomi MI Mix 3 Xiaomi MI 9
RAM LPDDR4X SDRAM - 6 GB LPDDR4X SDRAM - 6 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 128 GB 64 GB Xiaomi MI Mix 3 has more internal memory than Xiaomi MI 9.
CAMERA Xiaomi MI Mix 3 Xiaomi MI 9
MAIN CAMERA
Number of Main Cameras 2 3
Sensor Resolution 12 Megapixel 48 Megapixel Xiaomi MI 9 has better camera resolution than Xiaomi MI Mix 3.
Sensor Name Sony Exmor RS IMX363 sensor Sony Exmor RS IMX586 sensor
Lens Type Wide-angle lens Ultra wide-angle lens
Lens Aperture F/1.8 F/1.75 Xiaomi MI 9 has better lens aperture than Xiaomi MI Mix 3.
Pixel Size - 0.8 μm
Optical Image Stabiliser (OIS) 4-axis OIS (Optical Image Stabilisation) - Xiaomi MI Mix 3 has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Optical Zoom - 2x
Digital Zoom - 10x
Special Effects HDR HDR
Camera Modes Panorama, AI Beautify, Nightscape capture mode Burst mode, Panorama, portrait mode, AI Beautify, Smart ultra-wide angle mode, Ultra nightscape mode, Photo timer, Level display, Custom watermark, Full body portrait mode, Moon mode
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Light Source LED light Dual flash
Still Image Resolutions - 8000 x 6000
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, 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, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1920 x 1080 (1080p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 960 fps
Camera Features (Functions) Dual Pixel Phase Detect Auto-Focus (PDAF), AI scene and object detection, AI Dual camera, AI dynamic bokeh, AI studio lighting, AI Super Resolution, AI special effects Sapphire crystal lens cover, Phase Detect Auto-Focus (PDAF), Dynamic photos, video stabilisation, Contrast Auto-Focus, AI scene detection, AI studio lighting, Video Beautify, AI Triple camera, 960 fps Smart audio pairing, AI lens flare, AI high resolution photos, Portrait mode background blur adjustment, Ultra wide-angle edge distortion correction, Group photo face correction, Portrait mode background blurring, Motion tracking, Quick motion
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 12 Megapixel Both phones have the same second camera resolution.
Sensor Name (2nd Camera) Samsung S5K3M3+ -
Lens Type (2nd Camera) - Telephoto lens
Lens Aperture (2nd Camera) - F/2.2
Pixel Size (2nd Camera) - 1 μm
Camera Features (2nd Camera) - Macro photography
THIRD CAMERA
Sensor Resolution (3rd Camera) - 16 Megapixel
Lens Type (3rd Camera) - Ultra wide-angle lens
Lens Aperture (3rd Camera) - F/2.2
Pixel Size (3rd Camera) - 1 μm
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 24 Megapixel 20 Megapixel Xiaomi MI Mix 3 has better front camera resolution than Xiaomi MI 9.
Sensor Name (Front) Sony Exmor RS IMX576 sensor -
Lens Aperture (Front) - F/2.0
Pixel Size (Front) - 0.9 μm
Special Effects (Front) Magic mirror HDR, Magic mirror
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Bokeh Mode, AI makeup AI portrait mode, AI Beautify, AI makeup
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Front) AI portrait mode, Video Beautify, AI scene detection, AI dynamic bokeh, AI studio lighting, AI real-time video background blurring, AI eye light Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare
SECOND FRONT CAMERA
Sensor Resolution (2nd Front) 2 Megapixel -
Sensor Name (2nd Front) OC0A10 -
BATTERY AND CHARGING Xiaomi MI Mix 3 Xiaomi MI 9
Battery Capacity (Battery Size) 3200 mAh 3300 mAh Xiaomi MI 9 has larger battery capacity than Xiaomi MI Mix 3.
Fast Charging Technology Qualcomm Quick Charge 3.0, Qualcomm Quick Charge 4.0+ Qualcomm Quick Charge 4.0+ Both phones have fast charging technology.
Wireless Charging Yes - Xiaomi MI Mix 3 can be charged wirelessly.
Wireless Charging Standards Qi WPC, Qi
CELLULAR Xiaomi MI Mix 3 Xiaomi MI 9
Technology CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
User Interface - MIUI 10
Intelligent Assistant - Google Assistant
Payment Technology - Android Pay
Navigation GPS, GLONASS, BeiDou, Galileo, QZSS GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Xiaomi MI Mix 3 Xiaomi MI 9
Data Transmission GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X -
3G UMTS Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 8, Band 9, Band 19 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1800, 1700, 850, 800, 900, 1700, 800 2100, 1900, 1700, 850, 900
4G LTE Band 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 29, Band 30, Band 34, Band 38, Band 39, Band 40, Band 41, Band 66 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 20, Band 28, Band 38, Band 39, Band 40
4G LTE Frequency 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 700d, FDD 2300 WCS, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 Bluetooth 5.0
NFC Yes Yes Both phones have an NFC reader for mobile payments.
WLAN Security - WPA3
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi MI Mix 3 Xiaomi MI 9
Supported Digital Audio Standards WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD
Supported Digital Video Standards MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9
Sound Enhancements - Qualcomm TrueWireless Stereo Plus
FEATURES Xiaomi MI Mix 3 Xiaomi MI 9
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
Sensors Accelerometer, ambient light sensor, digital compass, gyro sensor, vibration sensor, ultrasonic distance sensor Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor
Security Devices Fingerprint reader Fingerprint reader (under display)
Additional Phone Features MIMO technology, MU-MIMO technology Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo
OTHERS Xiaomi MI Mix 3 Xiaomi MI 9
Included Accessories Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable, Xiaomi wireless charger Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger
Compliant Standards - TUV Rheinland Certified Safe Fast-Charge System
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