Xiaomi MI Mix 3 5G vs. Xiaomi 12

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi MI Mix 3 5G and Xiaomi 12. 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.

Phone Specifications Comparison

Xiaomi MI Mix 3 5G vs. Xiaomi 12 Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI Mix 3 5G Xiaomi 12
Product Type Smartphone Smartphone
Form Factor Touch slider Touch
Height 157.89 mm 152.7 mm Xiaomi MI Mix 3 5G has greater height than Xiaomi 12.
Width 74.69 mm 69.9 mm Xiaomi MI Mix 3 5G has greater width than Xiaomi 12.
Depth 8.46 mm 8.16 mm Xiaomi 12 is narrower than Xiaomi MI Mix 3 5G.
Weight 225 g 180 g Xiaomi 12 is lighter than Xiaomi MI Mix 3 5G.
Body Colour Sapphire blue | Onyx black Grey
Waterproof (Water-resistant) - -
SAR Value 1.577 W/kg (body), 1.557 W/kg (head) 0.596 W/kg (head), 0.998 W/kg (body), 1.972 W/kg (limb)
Connector Type USB Type-C - 24 pin USB-C USB Type-C - 24 pin USB-C
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Xiaomi MI Mix 3 5G Xiaomi 12
Display Type OLED display OLED display
Display Technology AMOLED AMOLED
Screen Size (Display Size) 6.39" 6.28" Xiaomi MI Mix 3 5G has larger screen size than Xiaomi 12.
Screen Resolution (Display Resolution) 2340 x 1080 pixels 2400 x 1080 pixels Xiaomi 12 has better screen resolution than Xiaomi MI Mix 3 5G.
Display Format Full HD+ Full HD+
Pixel Density 403 ppi 419 ppi Xiaomi 12 has better pixel density than Xiaomi MI Mix 3 5G.
Aspect Ratio 19.5:9 20:9
Max Brightness 600 cd/m² 1100 cd/m² Xiaomi 12 has better display brightness than Xiaomi MI Mix 3 5G.
Colour Depth - 68 billion colours
Contrast Ratio 60000:1 5000000:1 Xiaomi 12 has better display contrast ratio than Xiaomi MI Mix 3 5G.
HDR Yes Yes Both phones have HDR.
HDR Technology - HDR10+
Display Enhancement Technology Sunlight mode Dolby Vision, Sunlight mode, AdaptiveSync technology
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 480 Hz
Display Features Always-on display, Reading mode, Colour temperature adjustment, night mode Reading mode, DCI-P3 Wide colour gamut, Dot Display, True Colour, DisplayMate A+, 16000 levels auto brightness adjustment
Display Protection (Screen Protector) - Corning Gorilla Glass Victus (scratch resistant glass)
PROCESSOR Xiaomi MI Mix 3 5G Xiaomi 12
Processor Type (CPU) Qualcomm Snapdragon 855 Qualcomm Snapdragon 8 Gen 1
Clock Speed 2.84 GHz 3 GHz Xiaomi 12 has higher clock speed than Xiaomi MI Mix 3 5G.
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
MEMORY Xiaomi MI Mix 3 5G Xiaomi 12
RAM LPDDR4X SDRAM - 6 GB LPDDR5 SDRAM - 8 GB Xiaomi 12 has more RAM than Xiaomi MI Mix 3 5G.
Internal Memory Size (Storage Capacity) 128 GB 256 GB Xiaomi 12 has more internal memory than Xiaomi MI Mix 3 5G.
Memory Interface UFS 2.1 UFS 3.1
CAMERA Xiaomi MI Mix 3 5G Xiaomi 12
MAIN CAMERA
Number of Main Cameras 2 3
Sensor Resolution 12 Megapixel 50 Megapixel Xiaomi 12 has better camera resolution than Xiaomi MI Mix 3 5G.
Sensor Size - 1/1.56"
Sensor Name Sony Exmor RS IMX363 sensor Sony IMX766 sensor
Lens Type Wide-angle lens Wide-angle lens
Lens Aperture F/1.8 F/1.88 Xiaomi MI Mix 3 5G has better lens aperture than Xiaomi MI Mix 3 5G.
Lens Construction - 6-element
Pixel Size 1.4 μm 1 μm Xiaomi MI Mix 3 5G has larger camera pixel size than Xiaomi 12.
Optical Image Stabiliser (OIS) 4-axis OIS (Optical Image Stabilisation) Optical Image Stabiliser (OIS) Both phones have optical image stabilization.
Focus Adjustment Automatic Automatic
Special Effects HDR Moving crowd, Neon trails, Oil painting, Light painting, Starry sky, Star trails
Camera Modes Panorama, Nightscape capture mode, Personalized AI Beautify Night mode, Documents, Vlog mode, Pro Video mode, Movie frame, Night portrait mode, photo filters, Timed burst, Photo clones, Dual video mode, Ultra Night Video, Pro Time-lapse, 50MP mode
Face Recognition (Face ID) Face recognition - Xiaomi MI Mix 3 5G has face detection.
Light Source Flash 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, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 7680 x 4320 (8K) at 24 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 HDR10+ recording, Google Lens, One-click AI cinema, HDR video recording, 2.1μm 4-in-1 Super Pixel, Xiaomi ProFocus
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 13 Megapixel Xiaomi 12 has better second camera resolution than Xiaomi MI Mix 3 5G.
Sensor Name (2nd Camera) Samsung S5K3M3+ -
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.4
Field of View (2nd Camera) - 123 degree(s)
Pixel Size (2nd Camera) 1 μm -
THIRD CAMERA
Sensor Resolution (3rd Camera) - 5 Megapixel
Lens Type (3rd Camera) - Tele-macro lens
Lens Aperture (3rd Camera) - F/2.4
Focal Length Equivalent to 35mm Camera - 50mm
Camera Features (3rd Camera) - AF (3cm-7cm)
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 24 Megapixel 32 Megapixel Xiaomi 12 has better front camera resolution than Xiaomi MI Mix 3 5G.
Sensor Name (Front) Sony Exmor RS IMX576 sensor -
Lens Aperture (Front) - F/2.45
Pixel Size (Front) 1.8 μm -
Special Effects (Front) Magic mirror HDR
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Bokeh Mode, AI Beautify, AI makeup Panoramic selfies, AI Beautify, Timed burst, Selfie Night mode, Capture Dual, Time-lapse selfie, AI portrait mode with bokeh and depth control, AI portrait video
Face Recognition (Face ID) Face recognition - Xiaomi MI Mix 3 5G has face detection.
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 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 4-in-1 to 1.4μm Super Pixel, Video HDR
SECOND FRONT CAMERA
Sensor Resolution (2nd Front) 2 Megapixel -
Sensor Name (2nd Front) OC0A10 -
Pixel Size (2nd Front) 1.75 μm -
BATTERY AND CHARGING Xiaomi MI Mix 3 5G Xiaomi 12
Battery Capacity (Battery Size) 3800 mAh 4500 mAh Xiaomi 12 has larger battery capacity than Xiaomi MI Mix 3 5G.
Fast Charging Technology Qualcomm Quick Charge 4.0+ - Xiaomi MI Mix 3 5G has fast charging technology.
Recharge Time (Charging Time) - 39 min
Wireless Charging - Yes Xiaomi 12 can be charged wirelessly.
CELLULAR Xiaomi MI Mix 3 5G Xiaomi 12
Technology CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G 5G Both phones have the same mobile network generation.
Operating System - Android 12
User Interface - MIUI 13
Payment Technology - Google Pay
Navigation GPS, GLONASS, BeiDou, Galileo, QZSS GPS, A-GPS, GLONASS, BeiDou, Galileo, NavIC
COMMUNICATIONS Xiaomi MI Mix 3 5G Xiaomi 12
Data Transmission GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 FDD-LTE, TDD-LTE, 5G NR FR1
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19
3G UMTS Frequency 2100, 1900, 1700, 850, 900 2100, 1900, 1700, 850, 800, 900, 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 42, Band 48, 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, TDD 3500, TDD 3600, FDD 1700 - 2110 AWS-3
5G NR Band N78 N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79, 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 TD 4500, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E
Bluetooth Bluetooth 5.0 Bluetooth 5.2
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA Xiaomi MI Mix 3 5G Xiaomi 12
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 -
Supported Digital Video Standards MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP -
Sound Enhancements - Harman Kardon Sound technology, Dolby Atmos sound technology
FEATURES Xiaomi MI Mix 3 5G Xiaomi 12
Phone Functions 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, proximity sensor, digital compass, flicker sensor, gyroscope, 360° ambient light sensor
Security Devices Face recognition, fingerprint reader Fingerprint reader (under display)
Security Technology - AI face unlock
Additional Phone Features MIMO technology, MU-MIMO technology MIMO technology, linear motor, VC Liquid Cooling, Reverse wireless charging, dual stereo speakers, X-axis linear vibration motor, IR blaster, Qualcomm 7th generation AI Engine, Xiaomi AdaptiveCharge
OTHERS Xiaomi MI Mix 3 5G Xiaomi 12
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, USB-C cable, protective case, 67W charger
Compliant Standards - SGS Low Blue Light Certification
Other projects: